Huawei OptiX Metro 1000 Planning Guidelines(V300R005)

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16 MSTP OpticalTransmission System

V300R005

Planning Guidelines

Issue 02

Date 2008-09-10

Part Number 00435191

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Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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mailto:[email protected]

Contents

About This Document.....................................................................................................................1

1 Overview of Planning...............................................................................................................1-11.1 Planning Items.................................................................................................................................................1-21.2 References.......................................................................................................................................................1-3

2 Planning Network Layers.........................................................................................................2-12.1 Basic Principles...............................................................................................................................................2-22.2 Service Access.................................................................................................................................................2-22.3 Network Layers for the OptiX 155/622H.......................................................................................................2-22.4 Interconnection with Other OptiX Equipment................................................................................................2-3

2.4.1 Interconnection Capabilities...................................................................................................................2-32.4.2 Interconnection with the OptiX Metro Series Equipment......................................................................2-42.4.3 Interconnection with the OptiX OSN Series Equipment.......................................................................2-5

2.5 Network Management Capabilities of the T2000 and the Computation of the Capabilities..........................2-5

3 Planning Networking................................................................................................................3-13.1 Basic Principles...............................................................................................................................................3-23.2 NE Types Supported by the Equipment..........................................................................................................3-2

3.2.1 TM..........................................................................................................................................................3-33.2.2 ADM.......................................................................................................................................................3-33.2.3 MADM...................................................................................................................................................3-4

3.3 Networking Modes Supported by the Equipment...........................................................................................3-4

4 Planning Network Protection..................................................................................................4-14.1 Basic Principles...............................................................................................................................................4-34.2 Network Protection Schemes Supported by the Equipment...........................................................................4-34.3 Planning the MSP Ring...................................................................................................................................4-4

4.3.1 Capabilities of Supporting the MSP Ring..............................................................................................4-44.3.2 Planning Principles.................................................................................................................................4-4

4.4 Planning the SNCP..........................................................................................................................................4-44.4.1 Capabilities of Supporting the SNCP.....................................................................................................4-54.4.2 Planning Principles.................................................................................................................................4-5

4.5 Planning the 1+1 Linear MSP.........................................................................................................................4-54.5.1 Capabilities of Supporting the 1+1 Linear MSP....................................................................................4-54.5.2 Planning Principles.................................................................................................................................4-6

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4.6 Planning the 1:N Linear MSP.........................................................................................................................4-64.6.1 Capabilities of Supporting the 1:N Linear MSP....................................................................................4-64.6.2 Planning Principles.................................................................................................................................4-6

4.7 Planning the DNI Protection...........................................................................................................................4-74.7.1 Capabilities of Supporting the DNI Protection......................................................................................4-74.7.2 Planning Principles.................................................................................................................................4-7

4.8 Planning the Fiber-Shared Virtual Trail Protection........................................................................................4-74.8.1 Capabilities of Supporting the Fiber-Shared Virtual Trail Protection...................................................4-84.8.2 Planning Principles.................................................................................................................................4-8

4.9 Planning the VP-Ring and VC-Ring Protection Schemes for the ATM Service............................................4-84.9.1 Capabilities of Supporting the VP-Ring and VC-Ring Protection Schemes for the ATM Service.......4-84.9.2 Planning Principles.................................................................................................................................4-9

5 Planning the DCN......................................................................................................................5-15.1 DCN Schemes Supported by the Equipment..................................................................................................5-25.2 Basic Principles...............................................................................................................................................5-25.3 Planning NE IDs and IPs.................................................................................................................................5-35.4 Planning the HWECC.....................................................................................................................................5-3

5.4.1 Capabilities of Supporting the HWECC................................................................................................5-45.4.2 Planning Principles.................................................................................................................................5-4

5.5 Planning the IP over DCC...............................................................................................................................5-55.5.1 Capabilities of Supporting the IP over DCC..........................................................................................5-55.5.2 Planning Principles.................................................................................................................................5-5

5.6 Planning the OSI over DCC............................................................................................................................5-65.6.1 Capabilities of Supporting the OSI over DCC.......................................................................................5-65.6.2 Planning Principles.................................................................................................................................5-75.6.3 Planning Cases.......................................................................................................................................5-8

6 Planning Services.......................................................................................................................6-16.1 Basic Planning Principles................................................................................................................................6-26.2 Maximum Service Access Capacity................................................................................................................6-2

6.2.1 Service Access Capacity........................................................................................................................6-26.2.2 Access Capacity of Slots........................................................................................................................6-36.2.3 Cross-Connect Capacity.........................................................................................................................6-3

6.3 Planning SDH Services...................................................................................................................................6-46.3.1 Capability of Supporting SDH Services.................................................................................................6-46.3.2 Planning Principles.................................................................................................................................6-5

6.4 Planning PDH Services...................................................................................................................................6-56.4.1 Capability of Supporting PDH Services.................................................................................................6-56.4.2 Planning Principles.................................................................................................................................6-6

6.5 Planning Ethernet Services..............................................................................................................................6-76.5.1 Capability of Supporting Ethernet Services...........................................................................................6-76.5.2 Planning Principles...............................................................................................................................6-106.5.3 Planning Transparently Transmitted EPL Services.............................................................................6-11

Contents

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6.5.4 Planning Port-Shared EVPL Services..................................................................................................6-136.5.5 Planning VCTRUNK-Shared EVPL Services.....................................................................................6-156.5.6 Planning EVPL Services (Transit Scheme).........................................................................................6-166.5.7 Planning EPLAN Services...................................................................................................................6-176.5.8 Planning EVPLAN Services................................................................................................................6-19

6.6 Planning ATM Services................................................................................................................................6-216.6.1 Capability of Supporting the ATM Services........................................................................................6-226.6.2 Planning Principles...............................................................................................................................6-226.6.3 Planning Transparently Transmitted ATM Services............................................................................6-236.6.4 Planning Multicast ATM Services.......................................................................................................6-246.6.5 Planning Statistically Multiplexed ATM Services...............................................................................6-26

6.7 Planning DDN Services................................................................................................................................6-296.7.1 Capability of Supporting DDN Services..............................................................................................6-306.7.2 Planning Principles...............................................................................................................................6-316.7.3 Planning N x 64 kbit/s Services (Point-to-Point Transmission)..........................................................6-316.7.4 Planning Framed E1 Services (Point-to-Point Transmission)..............................................................6-326.7.5 Planning N x 64 kbit/s and Framed E1 Services (Hybrid Transmission)............................................6-336.7.6 Planning Converged Framed E1 Services............................................................................................6-346.7.7 Planning Converged N x 64 kbit/s Services.........................................................................................6-35

7 Planning Equipment-Level Protection...................................................................................7-1

8 Planning Clocks..........................................................................................................................8-18.1 Basic Principles...............................................................................................................................................8-28.2 Capabilities of Supporting Clocks...................................................................................................................8-28.3 Planning Examples..........................................................................................................................................8-3

9 Planning Orderwire and Auxiliary Interfaces......................................................................9-19.1 Planning Orderwire Phone Interfaces..............................................................................................................9-2

9.1.1 Capability of Supporting Orderwire Phone Interfaces...........................................................................9-29.1.2 Planning Principles.................................................................................................................................9-29.1.3 Planning Example..................................................................................................................................9-2

9.2 Planning Broadcast Data Interfaces S1–S4.....................................................................................................9-39.2.1 Capability of Supporting Broadcast Data Interfaces..............................................................................9-39.2.2 Planning Principles.................................................................................................................................9-39.2.3 Planning Example..................................................................................................................................9-4

9.3 Planning External Alarm Interfaces................................................................................................................9-59.3.1 Capability of Supporting External Alarm Interfaces..............................................................................9-59.3.2 Planning Principles.................................................................................................................................9-5

10 Planning Hardware................................................................................................................10-110.1 Planning the Cabinet...................................................................................................................................10-2

10.1.1 Cabinet...............................................................................................................................................10-210.1.2 Planning Principles.............................................................................................................................10-3

10.2 Planning Slots for Boards............................................................................................................................10-3

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10.2.1 Slot Allocation....................................................................................................................................10-310.2.2 Planning Principles.............................................................................................................................10-4

10.3 Planning Interface Boards...........................................................................................................................10-410.3.1 Planning Interface Boards..................................................................................................................10-4

11 Planning Environment for Operation................................................................................11-111.1 Power Supply Specifications and Power Consumption of Boards.............................................................11-211.2 Environment for Operation.........................................................................................................................11-411.3 Planning Principles......................................................................................................................................11-6

12 Overview of Network Optimization..................................................................................12-112.1 Purpose of Network Optimization...............................................................................................................12-212.2 Principles for Optimizing the Network.......................................................................................................12-212.3 Parameters Related to Network Optimization.............................................................................................12-212.4 Process for Optimizing a Network..............................................................................................................12-212.5 Principles for Monitoring the Network.......................................................................................................12-4

A Glossary..................................................................................................................................... A-1

B Acronyms and Abbreviations.................................................................................................B-1

Index.................................................................................................................................................i-1

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Figures

Figure 2-1 Application of the OptiX 155/622H in a transmission network.........................................................2-3Figure 2-2 Hybrid networking of the OptiX 155/622H and other equipment......................................................2-4Figure 2-3 Hybrid networking of the OptiX 155/622H and other OptiX Metro series equipment......................2-5Figure 3-1 Hardware configuration when the OptiX 155/622H functions as an STM-1 TM NE........................3-3Figure 3-2 Hardware configuration when the OptiX 155/622H functions as an STM-1 ADM NE....................3-4Figure 3-3 Hardware configuration when the OptiX 155/622H functions as an STM-1 and STM-4 MADM NE...............................................................................................................................................................................3-4Figure 5-1 Planning of the DCN network in the OSI over DCC mode................................................................5-9Figure 6-1 Access capacity of service board slots of the OptiX 155/622H.........................................................6-3Figure 6-2 Networking diagram for transparently transmitted EPL services.....................................................6-12Figure 6-3 Networking diagram for port-shared EPL services..........................................................................6-13Figure 6-4 Application scheme for port-shared EPL services............................................................................6-14Figure 6-5 Networking diagram for the VCTRUNK-shared EVPL services.....................................................6-15Figure 6-6 Application scheme for the VCTRUNK-shared EVPL services......................................................6-15Figure 6-7 Networking diagram for EVPL services (Transit scheme)...............................................................6-17Figure 6-8 Networking diagram for the EPLAN service...................................................................................6-18Figure 6-9 Networking diagram for the EVPLAN service................................................................................6-20Figure 6-10 Networking diagram for transparent transmission of ATM services.............................................6-23Figure 6-11 Networking diagram for the multicast ATM services....................................................................6-25Figure 6-12 Networking diagram for the statistically multiplexed ATM services............................................6-27Figure 6-13 Networking diagram for the N x 64 kbit/s service (point-to-point transmission)..........................6-31Figure 6-14 Networking diagram for the Framed E1 service (point-to-point transmission).............................6-32Figure 6-15 Networking diagram for the Framed E1 and N x 64 kbit/s services (hybrid transmission)...........6-33Figure 6-16 Networking diagram for the converged Framed E1 service...........................................................6-35Figure 6-17 Networking diagram for the converged N x 64 kbit/s services......................................................6-36Figure 8-1 Configuration of clocks in the chain network.....................................................................................8-3Figure 8-2 Configuration of clocks in the tangent rings network........................................................................8-4Figure 8-3 Configuration of clocks in the intersecting rings network..................................................................8-4Figure 9-1 Planning the orderwire phone interfaces............................................................................................9-3Figure 9-2 Application of the broadcast data interfaces.......................................................................................9-4Figure 10-1 Slot layout of the OptiX 155/622H ................................................................................................10-3

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Tables

Table 1-1 Planning items of the OptiX 155/622H................................................................................................1-2Table 2-1 Services supported by the OptiX 155/622H and the access capability for each service type..............2-2Table 2-2 List of management capability coefficients on different hardware platforms.....................................2-6Table 2-3 List of the equivalent coefficients of different NEs to the OptiX 155/622H ......................................2-6Table 3-1 Networking modes and topologies supported by the OptiX 155/622H...............................................3-5Table 4-1 Network protection schemes supported by the OptiX 155/622H........................................................4-3Table 6-1 Service access capacity of the OptiX 155/622H..................................................................................6-3Table 6-2 SDH boards of the OptiX 155/622H and their features.......................................................................6-4Table 6-3 PDH boards of the OptiX 155/622H and their features.......................................................................6-5Table 6-4 Features of the ET1, ET1O, ET1D, and EF1.......................................................................................6-7Table 6-5 Features of the EFS, EFSC, EFT, ELT2, and EGT..............................................................................6-9Table 6-6 Service routes for the transparently transmitted EPL services...........................................................6-12Table 6-7 Service routes for the port-shared EPL services................................................................................6-14Table 6-8 Routes for the VCTRUNK-shared EVPL services............................................................................6-16Table 6-9 Service routes for the EVPL services (Transit scheme).....................................................................6-17Table 6-10 Routes for the EPLAN service.........................................................................................................6-19Table 6-11 Routes for the EVPLAN service......................................................................................................6-21Table 6-12 Features of the AIUD and AIUQ.....................................................................................................6-22Table 6-13 Routes for transparently transmitted ATM services........................................................................6-24Table 6-14 Routes for multicast ATM services..................................................................................................6-26Table 6-15 Requirements for statistically multiplexing ATM services.............................................................6-27Table 6-16 Routes for the statistically multiplexed ATM services....................................................................6-28Table 6-17 Features of the N64 and N64Q.........................................................................................................6-30Table 6-18 Routes for the N x 64 kbit/s service (point-to-point transmission)..................................................6-32Table 6-19 Routes for the Framed E1 service (point-to-point transmission).....................................................6-33Table 6-20 Routes for the 4 x 64 kbit/s and the Framed E1 service (hybrid transmission)...............................6-34Table 6-21 Routes for the converted Framed E1 services..................................................................................6-35Table 6-22 Routes for the converged N x 64 kbit/s services..............................................................................6-37Table 10-1 Technical specifications of the ETSI cabinets.................................................................................10-2Table 10-2 Technical specifications of the 19-inch cabinet...............................................................................10-2Table 10-3 Interfaces of SDH processing boards...............................................................................................10-4Table 10-4 Interfaces of PDH processing boards...............................................................................................10-5Table 10-5 Interfaces of data service processing boards....................................................................................10-6

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Table 10-6 Interfaces of other boards.................................................................................................................10-7Table 11-1 Power supply specifications.............................................................................................................11-2Table 11-2 Power consumption and weight of the boards of the OptiX 155/622H. .........................................11-2Table 11-3 Requirements for temperature and humidity....................................................................................11-4Table 11-4 Other climatic requirements.............................................................................................................11-4Table 11-5 Requirements for the density of the mechanical active substance...................................................11-5Table 11-6 Density requirements for chemical active substances during operation..........................................11-5Table 11-7 Requirements for mechanical stress during operation.....................................................................11-5

Tables


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About This Document

PurposeThis document descries the OptiX 155/622H(Metro1000) (hereafter referred to as OptiX155/622H) in the following aspects:

l Planning overview

l Planning network layers

l Planning networking

l Planning network protection

l Planning the DCN

This document helps readers understand the planning of the OptiX 155/622H in a comprehensivemanner.

Related VersionsThe following table lists the product versions related to this document.

Product Name Version

OptiX 155/622H V300R005

OptiX iManager T2000 V200R007

Intended AudienceThe intended audiences of this document are network planning engineers.

OrganizationThe manual is organized as follows:

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16MSTP Optical Transmission SystemPlanning Guidelines About This Document


1

Chapter Description

1 Overview of Planning This chapter describes the planning items and references forthe planning of the OptiX 155/622H.

2 Planning Network Layers This chapter describes the network layer for the OptiX155/622H, capabilities of the OptiX 155/622H tointerconnect with other OptiX equipment, and capabilitiesof the T2000 to manage the OptiX 155/622H.

3 Planning Networking This chapter describes the principles for planning thenetworking, and the NE types and networking modessupported by the OptiX 155/622H.

4 Planning NetworkProtection

This chapter describes the principles of the networkprotection and how to plan network protection schemes.

5 Planning the DCN This chapter describes the principles for planning the DCN,the DCN modes supported by the OptiX 155/622H, andcommon methods of planning the DCN.

6 Planning Services This chapter describes the principles for planning servicesand the methods of planning various types of services.

7 Planning Equipment-LevelProtection

This chapter describes the equipment-level protection andthe port protection supported by the OptiX 155/622H.

8 Planning Clocks This chapter describes the principles for planning the clockprotection, capabilities of the OptiX 155/622H to processclocks, and how to plan the clock protection by providingan example.

9 Planning Orderwire andAuxiliary Interfaces

This chapter describes how to plan the orderwire, broadcastdata interface, and external alarm interface of the OptiX155/622H.

10 Planning Hardware This chapter describes how to plan the cabinet, slots forinstalling the board, and the interfaces on the board.

11 Planning Environment forOperation

This chapter describes the principles for planning theoperation environment, power consumption of theequipment, and requirements of the equipment for theoperation environment.

12 Overview of NetworkOptimization

This chapter describes the purpose, principles, relatedparameters, and brief process for optimizing a network.

A Glossary This chapter lists the terms that are used in this document.

B Acronyms andAbbreviations

This document lists the acronyms and abbreviations that areused in this document.

About This Document


Planning Guidelines

2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

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Conventions

Symbol ConventionsThe following symbols may be found in this document. They are defined as follows.

Symbol Description

Indicates a hazard with a high level of risk which, if not avoided,will result in death or serious injury.

Indicates a hazard with a medium or low level of risk which, ifnot avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation that, if not avoided,could cause equipment damage, data loss, and performancedegradation, or unexpected results.

Indicates a tip that may help you solve a problem or save yourtime.

Provides additional information to emphasize or supplementimportant points of the main text.

General ConventionsConvention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are in boldface. Forexample, log in as user root.

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

Command ConventionsConvention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] areoptional.

{ x | y | ... } Alternative items are grouped in braces and separated byvertical bars. One is selected.



3

Convention Description

[ x | y | ... ] Optional alternative items are grouped in square bracketsand separated by vertical bars. One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated byvertical bars. A minimum of one or a maximum of all canbe selected.

GUI ConventionsConvention Description

Boldface Buttons, menus, parameters, tabs, window, and dialog titles are inboldface. For example, click OK.

> Multi-level menus are in boldface and separated by the ">" signs. Forexample, choose File > Create > Folder.

Keyboard OperationFormat Description

Key Press the key. For example, press Enter and press Tab.

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt+A means thethree keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means the two keysshould be pressed in turn.

Mouse OperationAction Description

Click Select and release the primary mouse button without moving the pointer.

Double-click Press the primary mouse button twice continuously and quickly withoutmoving the pointer.

Drag Press and hold the primary mouse button and move the pointer to a certainposition.

Update HistoryUpdates between document versions are cumulative. Therefore, the latest document versioncontains all updates made to previous versions.

About This Document


Planning Guidelines

4 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Issue 02 (2008-09-10)

Updates in Issue 02 (2008-09-10)l The name of this document is modified.

l Certain known defects are fixed.

Updates in Issue 01 (2008-07-01)Initial field trial release.



5

1 Overview of Planning

About This Chapter

When planning the network, consider the network layers, networking modes, and networkprotection schemes, and refer to relevant documents.

1.1 Planning ItemsThis section describes the planning items of the OptiX 155/622H and the contents of each item.

1.2 ReferencesWhen planning the OptiX 155/622H, refer to the documents that involve the product featuresof the OptiX 155/622H.

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1-1

1.1 Planning ItemsThis section describes the planning items of the OptiX 155/622H and the contents of each item.

When planning a network based on the OptiX 155/622H, you need to plan the items, such asnetwork layer, service, protection, and clock.

Table 1-1 Planning items of the OptiX 155/622H

Item Contents

Description

2 Planning NetworkLayers

Chapter 2 This chapter describes the network layer for the OptiX155/622H, principles for planning network layers,capabilities of the OptiX 155/622H to interconnectwith other OptiX equipment, and capabilities of theT2000 to manage the OptiX 155/622H.

3 PlanningNetworking

Chapter 3 This chapter describes the principles for planningnetworking, and the NE types and networking modessupported by the OptiX 155/622H.

4 Planning NetworkProtection

Chapter 4 This chapter describes the basic principles for planningnetwork protection schemes and the networkprotection schemes supported by the OptiX 155/622H.

5 Planning the DCN Chapter 5 This chapter describes the HWECC, IP over DCC andOSI over DCC protocols supported by the OptiX155/622H, and the principles for planning the DCN.

6 Planning Services Chapter 6 This chapter describes the basic principles for planningservices, the service access capability, and the planningof services.

7 PlanningEquipment-LevelProtection

Chapter 7 This chapter describes the equipment-level protectionschemes supported by the OptiX 155/622H.

8 Planning Clocks Chapter 8 This chapter describes the basic principles for planningclocks, and capability of the OptiX 155/622H toprocess clocks and to protect clocks.

9 PlanningOrderwire andAuxiliary Interfaces

Chapter 9 This chapter describes the capabilities of the OptiX155/622H of supporting the orderwire phone, S1–S4data interfaces and alarm interfaces.

10 PlanningHardware

Chapter10

This chapter describes the principles for planning thecabinet, slots and interfaces for the OptiX 155/622H.

11 PlanningEnvironment forOperation

Chapter11

This chapter describes the principles for planning theoperation environment, power consumption of theequipment, and requirements of the equipment for theoperation environment.

1 Overview of Planning


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Item Contents

Description

12 Overview ofNetworkOptimization

Chapter12

This chapter describes the purpose, principles, relatedparameters, and brief process for optimizing a network.

NOTE

During the planning of a transmission network, you should first collect and analyze service requirements,and then analyze the existing network information and determine the network capacity. After that, youshould plan the T2000. The operations mentioned in this note are not described in this document.

1.2 ReferencesWhen planning the OptiX 155/622H, refer to the documents that involve the product featuresof the OptiX 155/622H.

References:l OptiX 155/622H(Metro1000) STM-1/STM-4 MSTP Optical Transmission System Product

Descriptionl OptiX 155/622H(Metro1000) STM-1/STM-4 MSTP Optical Transmission System

Hardware Description

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1-3

2 Planning Network Layers

About This Chapter

When planning the network layers, follow the basic principles, and consider the network layersfor the equipment, interconnection with other OptiX equipment, and network managementcapabilities of the T2000.

2.1 Basic PrinciplesWhen planning the layers of the transmission network, consider the necessity to layer thenetwork, rationality of layering the network, and functions of each layer.

2.2 Service AccessThe OptiX 155/622H can access multiple types of services and can interconnect with switches,wireless base stations, and Ethernet switches.

2.3 Network Layers for the OptiX 155/622HThe OptiX 155/622H is a type of STM-1/STM-4 case-shaped equipment developed by HuaweiTechnologies Co., Ltd. It can access multiple types of services and can be used at the accesslayer of metropolitan area networks (MANs) and local transmission networks to access VIPprivate lines, wireless base stations, and digital subscriber line access multiplexers (DSLAM).

2.4 Interconnection with Other OptiX EquipmentThe OptiX 155/622H can interconnect with other Huawei OptiX equipment to provide anintegrated transmission network solution.

2.5 Network Management Capabilities of the T2000 and the Computation of the CapabilitiesThe T2000 enables users to perform management and maintenance operations on the OptiX155/622H. During the network planning, consider the management capabilities of the T2000 toselect the hardware and management domains of the T2000.

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2-1

2.1 Basic PrinciplesWhen planning the layers of the transmission network, consider the necessity to layer thenetwork, rationality of layering the network, and functions of each layer.

You need to consider the following items when planning the layers of the transmission network:

l Necessity to layer the network

l Rationality of layering the network

l Functions of each layer, such as grooming, accessing and convergence

l Interworking with data and service networks

l Coverage of networks and services

l Future evolution of networks and services

l Rationality of the capacity of each layer

l Traffic equilibrium at each station

2.2 Service AccessThe OptiX 155/622H can access multiple types of services and can interconnect with switches,wireless base stations, and Ethernet switches.

Table 2-1 lists the services that the OptiX 155/622H can access and the access capability foreach service type.

Table 2-1 Services supported by the OptiX 155/622H and the access capability for each servicetype

Service Type Maximum Access Capability of a Single OptiX 155/622H NE

SDH service 16 x STM-1 (o), 6 x STM-1 (e), 5 x STM-4

PDH service 112 x E1, 96 x E1/T1, 9 x E3, 9 x T3, 48 x Framed E1

Ethernet service 24 x FE (e), 8 x FE (o), 3 x GE (o)

N x 64 kbit/s service 12 x N x 64 kbit/s (N ≤ 31)

ATM service 4 x STM-1 ATM

Audio and dataservice

12 x audio + 4 x RS-232 + 4 x RS-422

2.3 Network Layers for the OptiX 155/622HThe OptiX 155/622H is a type of STM-1/STM-4 case-shaped equipment developed by HuaweiTechnologies Co., Ltd. It can access multiple types of services and can be used at the accesslayer of metropolitan area networks (MANs) and local transmission networks to access VIPprivate lines, wireless base stations, and digital subscriber line access multiplexers (DSLAM).



Planning Guidelines


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Figure 2-1 Application of the OptiX 155/622H in a transmission network

OptiX OSN 9500

Backbone layer

Convergence layer

Access layer

OptiX 10G

OptiX 155/622H

OptiX Metro 500 OptiX Metro 500

OptiX 2500+

OptiX 155/622H

OptiX 2500+

OptiX 10G

2.4 Interconnection with Other OptiX EquipmentThe OptiX 155/622H can interconnect with other Huawei OptiX equipment to provide anintegrated transmission network solution.

2.4.1 Interconnection CapabilitiesThe OptiX 155/622H can interconnect with the Huawei OptiX OSN and Metro series equipmentto provide an integrated transmission network solution.

2.4.2 Interconnection with the OptiX Metro Series EquipmentThere is no restriction when the OptiX 155/622 interconnects with other OptiX Metro seriesequipment.

2.4.3 Interconnection with the OptiX OSN Series EquipmentThe OptiX 155/622H can interconnect with the OptiX OSN 9500, OptiX OSN 7500, OptiX OSN3500, OptiX OSN 2500, and OptiX OSN 1500 through SDH, PDH, and Ethernet interfaces.

2.4.1 Interconnection CapabilitiesThe OptiX 155/622H can interconnect with the Huawei OptiX OSN and Metro series equipmentto provide an integrated transmission network solution.

The OptiX 155/622H can interconnect with the following types of equipment:

l OptiX Metro series equipment: OptiX 10G, OptiX 2500+, OptiX 155/622, OptiX Metro500, and OptiX Metro 100

l OptiX OSN series equipment: OptiX OSN 9500, OptiX OSN 7500, OptiX OSN 3500,OptiX OSN 2500, and OptiX OSN 1500.

Figure 2-2 shows the application of the integrated MAN network where the OptiX 155/622His interconnected with other equipment.



2-3

Figure 2-2 Hybrid networking of the OptiX 155/622H and other equipment

OptiX 155/622H

DWDMOptiX OSN 9500

OptiX OSN 3500

iManager T2000

OptiX 10G

OptiX 155/622H

STM-64 ring

STM-16 ring STM-16 ring

STM-1/4ring STM-1/4

ring

Backbone layer

Convergence layer

Access layer

OptiX Metro 100

OptiX 10G

OptiX 2500+

OptiX 2500+

OptiX Metro 100OptiX 155/622H

STM-1/4ring

STM-64ring

OptiX 10GOptiX OSN 3500OptiX OSN 3500

OptiX 2500+

OptiX 2500+

OptiX 155/622H

OptiX 155/622H

OptiX 155/622H

2.4.2 Interconnection with the OptiX Metro Series EquipmentThere is no restriction when the OptiX 155/622 interconnects with other OptiX Metro seriesequipment.

Figure 2-3 shows the application of the hybrid networking where the OptiX 155/622H isconnected to other OptiX Metro series equipment.



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Figure 2-3 Hybrid networking of the OptiX 155/622H and other OptiX Metro series equipment

OptiX OSN 9500

Backbone layer

Convergence layer

Access layer

OptiX 10G

OptiX 155/622H

OptiX Metro 500 OptiX Metro 500

OptiX 2500+

OptiX 155/622H

OptiX 2500+

OptiX 10G

2.4.3 Interconnection with the OptiX OSN Series EquipmentThe OptiX 155/622H can interconnect with the OptiX OSN 9500, OptiX OSN 7500, OptiX OSN3500, OptiX OSN 2500, and OptiX OSN 1500 through SDH, PDH, and Ethernet interfaces.

2.5 Network Management Capabilities of the T2000 and theComputation of the Capabilities

The T2000 enables users to perform management and maintenance operations on the OptiX155/622H. During the network planning, consider the management capabilities of the T2000 toselect the hardware and management domains of the T2000.

Number of the OptiX 155/622H NEs Managed by the T2000

One set of the T2000 can manage a maximum of 2000 OptiX 155/622H NEs. The number isbased on the tests in certain conditions and reflects the management capabilities of the T2000in an objective manner.

Computation Formulas for the Management Capabilities

Computation formulas for the management capabilities of the T2000 are as follows:

l Number of the manageable NEs = 1000 x A ÷ B

l A: refers to the management capability coefficient of the hardware platform. For details,refer to Table 2-2.

l B: refers to the equivalent coefficient of the NEs to the OptiX 155/622H. For details, referto Table 2-3.



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Computation Methods for the Management Capabilities

The management capabilities of the T2000 refer to the number of the maximum manageableNEs when the specified performance specifications are met. At present, a set of T2000 softwarecan manage a maximum of 2000 STM-1 NEs.

When the T2000 manages networks composed of different types of NEs, the managementcapabilities can be computed from the preceding data. During the computation, the followingfactors should be considered:

l The number of fibers and services can be different for different types of NEs, and thus thesize of the databases varies.

l Different hardware platforms affect the management capabilities of the T2000, especiallythe T2000 server.

l If the client and server are running on the same computer, the management capabilities canbe reduced by 50%. Thus, the client and the server should run on separate computers. Inthis case, the effect of the client on the management capabilities of the server can bedisregarded.

Table 2-2 List of management capability coefficients on different hardware platforms

Hardware Platform ManagementCapabilityCoefficient

Maximum Number ofAccessed Clients

Sun Netra240 0.6 16

Sun Fire V890 (2 CPU) 1 24

Sun Fire V890 (4 CPU) 1.5 32

Fujitsu PW 650 (2 CPU) 1 24

Fujitsu PW 650 (4 CPU) 1.5 32

Sun Fire E4900 2 32

Sun Netra240 (dual-node) 0.6 16

DELL PE 6800 1.5 32

DELL PE 2900 1 24

DELL PE 840 0.6 16

Table 2-3 List of the equivalent coefficients of different NEs to the OptiX 155/622H

NE Type Equivalent Coefficient to theOptiX 155/622H

OptiX OSN series OptiX OSN 1500 3.5 (with ASON enabled)/2.5 (withASON disabled)

OptiX OSN 2000 2



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NE Type Equivalent Coefficient to theOptiX 155/622H

OptiX OSN 2500 4.5 (with ASON enabled)/3.5 (withASON disabled)

OptiX OSN 3500 6.5 (with ASON enabled)/4.5 (withASON disabled)

OptiX OSN 7500 10 (with ASON enabled)/6.5 (withASON disabled)

OptiX OSN 9500 15 (with ASON enabled)/10 (withASON disabled)

OptiX MSTPseries

OptiX Metro 100 0.5

OptiX Metro 200 0.5

OptiX Metro 500 1

OptiX 155/622H 1

OptiX 155/622H V3 1

OptiX Metro 1050 1.5

OptiX Metro 1100 1.5

OptiX 155/622(Metro 2050) 2

OptiX 2500+(Metro 3000) 3

OptiX Metro 3100 3

OptiX 10G(Metro 5000) 4

OptiX SDH series OptiX 155C 1

OptiX 155S 1

OptiX 155/622B 2

OptiX 2500 3

OptiX 2500 REG 1.5

OptiX RTN series OptiX RTN 610 0.4

OptiX RTN 620 0.5



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3 Planning Networking

About This Chapter

When planning the networking, follow the basic principles, and consider the NE types andnetworking modes supported by the OptiX 155/622H.

3.1 Basic PrinciplesWhen planning the transmission network, consider the line structure, service type, and servicerequirement.

3.2 NE Types Supported by the EquipmentIn a network, The OptiX 155/622H can be configured as different types of NEs, including TM,ADM and MADM.

3.3 Networking Modes Supported by the EquipmentThe OptiX 155/622H supports networking modes, such as the chain, ring, HUB, ring with chain,tangent rings, intersecting rings, at the STM-1 and STM-4 levels.

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3.1 Basic PrinciplesWhen planning the transmission network, consider the line structure, service type, and servicerequirement.

Adhere to the following principles:

l At the access layer, because the service capacity is small and most traffic is converged toa central node, use the unidirectional SNCP ring.

l In the case of the communication between offices, because the traffic between nodes ishigh and each node needs to add/drop abundant services, use the bidirectional MSP ring.

l Use the two-fiber bidirectional MSP when the services on the ring are discrete. In extremecases, when services are configured between each two nodes, the service capacity on thering becomes maximum, that is, STM-N x K / 2 (K indicates the number of nodes on thering). In this way, the network resources can be fully utilized. The MSP requires the supportof the automatic protection switching (APS) protocol, and thus it results in the complicatedprotection mechanism and high maintenance costs.

l The SNCP can provide protections at the VC-4, VC-3, or VC-12 level. This protectionscheme features high flexibility.

l Use the SNCP or MSP protection scheme in the case of inter-ring services or servicesbetween the ring and chain.

l The protection schemes for the chain network include the 1+1 linear MSP and 1:N linearMSP. To fully utilize the network resources, use the 1:N protection scheme to transmit theextra services on the protection routes. You can still use the 1+1 protection scheme forrapid restoration of services in the case of the switching.

l The DNI is mainly used on intersecting rings, at gateway nodes with great service capacity,and for connecting tandem offices. The primary advantage of the DNI is to provideprotection when node failures occur.

3.2 NE Types Supported by the EquipmentIn a network, The OptiX 155/622H can be configured as different types of NEs, including TM,ADM and MADM.

3.2.1 TMA TM multiplexes the PDH signals at a low rate into SDH optical signals at a high rate, and thusrealizes the cross-connection between line signals and tributary signals. A TM also implementsthe reverse process.

3.2.2 ADMADMs are used most widely in the SDH network. An ADM combines functions of synchronousmultiplexing and digital cross-connection, and can flexibly add/drop tributary signals.

3.2.3 MADMAn MADM can be considered the combination of multiple ADMs, and it functions as the coreunit to construct complex networks. In addition to all the functions of an ADM, an MADM canalso realize the cross-connection between ADMs, which operate at the same rate or at differentrates.



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3.2.1 TMA TM multiplexes the PDH signals at a low rate into SDH optical signals at a high rate, and thusrealizes the cross-connection between line signals and tributary signals. A TM also implementsthe reverse process.

The stations in a point-to-point topology or the two terminal stations on a chain are generallyconfigured as TMs. The terminal stations in the networking of ring with a chain are configuredas TMs.

Figure 3-1 shows how to configure the hardware of the OptiX 155/622H when it functions asan STM-1 TM NE. One OI2S board receives and transmits STM-1 optical signals. The OI2Sboard can be installed in slots IU1–IU3. Other boards can be installed in the remaining slots ofthe equipment as the services require.

Figure 3-1 Hardware configuration when the OptiX 155/622H functions as an STM-1 TM NE

IU1-OI2SIU2IU3

IU4

IU5 IU6 IU11-SCC IU12-XC IU13-STG IU14-EOW

NOTE

The SCB board combines the functions of the SCC unit (SCC), cross-connect unit (XC), clock unit (STG),orderwire unit (EOW), STM-1/STM-4 optical interface unit, and E1 electrical interface unit. These unitscorrespond to different IU numbers on the T2000. This manual describes these units of the SCB boardaccording to the slot definitions of the T2000.

3.2.2 ADMADMs are used most widely in the SDH network. An ADM combines functions of synchronousmultiplexing and digital cross-connection, and can flexibly add/drop tributary signals.

Similar to a TM, an ADM can multiplex and demultiplex signals. In addition, an ADM canrealize the cross-connection between line signals and between line signals and tributary signals.For example, an ADM can multiplex the accessed E1 signals and thus enable them to betransmitted in the line signals in two directions. Moreover, the line signals in the two directionscan also be interconnected.

ADMs are widely used in the chain networking, ring networking, and HUB networking.

Figure 3-2 shows how to configure the hardware of the OptiX 155/622H when it functions asan STM-1 ADM NE. One OI2D board receives and transmits STM-1 signals in two directions.The OI2D board can be installed in slots IU1–IU3. Other boards can be installed in the remainingslots of the equipment as the services require.



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Figure 3-2 Hardware configuration when the OptiX 155/622H functions as an STM-1 ADMNE

IU1IU2IU3

IU4

IU5-OI2D IU6 IU11-SCC IU12-XC IU13-STG IU14-EOW

3.2.3 MADMAn MADM can be considered the combination of multiple ADMs, and it functions as the coreunit to construct complex networks. In addition to all the functions of an ADM, an MADM canalso realize the cross-connection between ADMs, which operate at the same rate or at differentrates.

MADMs are used at the central nodes in the networking of ring with chain, networking of tangentrings, networking of intersecting rings, and HUB networking

Figure 3-3 shows how to configure the hardware of the OptiX 155/622H when it functions asan STM-1 and STM-4 MADM NE. The three optical interface boards realize the functions ofan MADM NE. Other boards can be installed in the remaining slots of the equipment as theservices require.

Figure 3-3 Hardware configuration when the OptiX 155/622H functions as an STM-1 andSTM-4 MADM NE

IU1-OI2SIU2-OI2SIU3

IU4

IU5-OI4D IU6 IU11-SCC IU12-XC IU13-STG IU14-EOW

3.3 Networking Modes Supported by the EquipmentThe OptiX 155/622H supports networking modes, such as the chain, ring, HUB, ring with chain,tangent rings, intersecting rings, at the STM-1 and STM-4 levels.

Table 3-1 lists the networking modes supported by the OptiX 155/622H.



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Table 3-1 Networking modes and topologies supported by the OptiX 155/622H

Networking Mode

Topology

Chain

Ring

Tangentrings

Intersecting rings

Ring withchain



3-5

Networking Mode

Topology

HUB

Note:

MADM ADM TM



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4 Planning Network Protection

About This Chapter

The network protection is provided for services in the entire network instead of a single NE. Thenetwork protection protects the SDH, Ethernet, and ATM services. Thus, proper planning canensure the effectiveness of the network protection.

4.1 Basic PrinciplesUsers can choose proper network protection schemes according to the features of networkprotection schemes and application scenarios.

4.2 Network Protection Schemes Supported by the EquipmentThe OptiX 155/622H supports network protection schemes for the SDH service and the ATMservice.

4.3 Planning the MSP RingThe MSP ring, widely used in the SDH network, includes the four-fiber bidirectional MSP ring,two-fiber bidirectional MSP ring, and two-fiber unidirectional MSP ring.

4.4 Planning the SNCPThe SNCP is used most widely in the SDH network.

4.5 Planning the 1+1 Linear MSPThe 1+1 linear MSP, used in the SDH chain network, has high switching speed, high reliability,and low bandwidth utilization.

4.6 Planning the 1:N Linear MSPThe 1:N linear MSP is used in the SDH chain network. One protection channel protects serviceson N working channels. However, two faulty working channels cannot be protected at the sametime. When all the channels are normal, the protection channel can carry extra services.

4.7 Planning the DNI ProtectionThe DNI protection can be configured on two interconnected nodes. The DNI protectionenhances the reliability of the services between the two rings.

4.8 Planning the Fiber-Shared Virtual Trail ProtectionFor the fiber-shared virtual trail protection, two or multiple ring networks share the same fiber.The capacity of the fiber is classified and divided into different protection groups in VC-4granularities. Thus, multiple network protection schemes can be used in one optical fiber. The

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16MSTP Optical Transmission SystemPlanning Guidelines 4 Planning Network Protection


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fiber-shared virtual trail protection enhances the survivability of the network and bandwidthutilization.

4.9 Planning the VP-Ring and VC-Ring Protection Schemes for the ATM ServiceThe VP-Ring and VC-Ring, used for the ATM services, can coexist with the MSP and SNCPschemes at the SDH layer.



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4.1 Basic PrinciplesUsers can choose proper network protection schemes according to the features of networkprotection schemes and application scenarios.

Adhere to the following principles when planning network protection.

l At the access layer, the service capacity is small, and most services are converged at acentral node. Thus, the unidirectional SNCP ring is applicable.

l In the case of the inter-office communication, the service capacity of each node is large,and a larger service adding/dropping capability is required. Thus, the bidirectional MSPring is applicable.

l When services on the ring are discrete, the two-fiber bidirectional MSP is applicable. Inthe case of extreme situations, when services only travel between two adjacent nodes, themaximum service capacity on the ring is STM-N x K/2 ( "K" represents the number ofnodes). In this case, the resource utilization is large. However, the MSP, which needs thesupport of the automatic protection switching (APS) protocol, has complex protectionmechanisms and strict network maintenance requirements.

l The SNCP scheme is applied to protect services at the VC-4, VC-3 or VC-12 level. Hence,the SNCP scheme has more flexibility.

l In the case of the inter-ring and ring with chain services, the SNCP or MSP is applicable.

l Protection schemes for the chain network include the 1+1 linear MSP and the 1:N linearMSP. In the case of 1:N linear MSP, protection routes can carry extra services. Thus, thenetwork utilization is enhanced. When rapid service restoration after the switching isrequired, the 1+1 protection is applicable.

l The DNI is mainly used on intersecting rings and at gateway nodes with great servicecapacity, or used for connecting tandem offices. The primary advantage of the DNI is thatit provides protection when multi-node failures occur.

NOTESlot IU3 does not support the configuring of the MSP and fiber-shared virtual trail protection.

4.2 Network Protection Schemes Supported by theEquipment

The OptiX 155/622H supports network protection schemes for the SDH service and the ATMservice.

Table 4-1 lists the network protection schemes supported by the OptiX 155/622H.

Table 4-1 Network protection schemes supported by the OptiX 155/622H

Protection Level Protection Scheme

SDH network protection MSP

SNCP

1+1 linear MSP



4-3

Protection Level Protection Scheme

1:N linear MSP

DNI protection

Fiber-shared virtual trail protection

Network protection for the ATM service VP-Ring, VC-Ring network protection

4.3 Planning the MSP RingThe MSP ring, widely used in the SDH network, includes the four-fiber bidirectional MSP ring,two-fiber bidirectional MSP ring, and two-fiber unidirectional MSP ring.

4.3.1 Capabilities of Supporting the MSP RingWhen planning the MSP ring for the OptiX 155/622H, first consider the capabilities ofsupporting the MSP ring.

4.3.2 Planning PrinciplesTo rationally and effectively plan the MSP ring, the planning principles should be followed.

4.3.1 Capabilities of Supporting the MSP RingWhen planning the MSP ring for the OptiX 155/622H, first consider the capabilities ofsupporting the MSP ring.

The OptiX 155/622H supports the following types of MSP rings:

l Two-fiber unidirectional MSP at the STM-1 level

l Two-fiber unidirectional/bidirectional MSP at the STM-4 level

4.3.2 Planning PrinciplesTo rationally and effectively plan the MSP ring, the planning principles should be followed.

Adhere to the following principles when planning the MSP ring.

l The number of nodes on an MSP ring should not exceed 16.

l On the bidirectional MSP ring, services are configured on half of the VC-4 channels, andthe other half of the VC-4 channels are used as protection channels. If extra services areconfigured on the protection channels, these services are unavailable when protectionswitching occurs.

l On an MSP ring, do not form an ADM NE by using different optical interfaces on the samemultichannel optical interface board. Otherwise, services in the two directions of the ADMare unavailable at the same time, when the board fails.

4.4 Planning the SNCPThe SNCP is used most widely in the SDH network.

4.4.1 Capabilities of Supporting the SNCP



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Before you plan the SNCP for the OptiX 155/622H, first consider the capabilities of supportingthe SNCP.

4.4.2 Planning PrinciplesTo rationally and effectively plan the SNCP, the planning principles should be followed.

4.4.1 Capabilities of Supporting the SNCPBefore you plan the SNCP for the OptiX 155/622H, first consider the capabilities of supportingthe SNCP.

In the case of the OptiX 155/622H, the capabilities of supporting the SNCP are listed as follows:

l The SNCP function of the OptiX 155/622H is compliant with ITU-T G.841 and G.842.

l The SNCP can be at the VC-4, VC-3, or VC-12 level.

4.4.2 Planning PrinciplesTo rationally and effectively plan the SNCP, the planning principles should be followed.

Adhere to the following principles when planning the SNCP.

l In the case of the ring and ring with chain networks at the STM-1 level, the SNCP isrecommended if the services on the ring are centralized.

l When the SNCP and the MSP coexist, set the hold-off time of the SNCP longer than theswitching time (50 ms) of the MSP to avoid the interference between the SNCP and theMSP.

l In the DNI networking, the primary and secondary nodes of the SNCP should be correctlyset on the ring in the same direction.

l In the DNI networking, the SNCP and linear MSP schemes cannot be used on the chain atthe same time.

4.5 Planning the 1+1 Linear MSPThe 1+1 linear MSP, used in the SDH chain network, has high switching speed, high reliability,and low bandwidth utilization.

4.5.1 Capabilities of Supporting the 1+1 Linear MSPWhen planning the 1+1 linear MSP for the OptiX 155/622H, first consider the capabilities ofsupporting the 1+1 linear MSP.

4.5.2 Planning PrinciplesTo rationally and effectively plan the 1+1 linear MSP, the planning principles should befollowed.

4.5.1 Capabilities of Supporting the 1+1 Linear MSPWhen planning the 1+1 linear MSP for the OptiX 155/622H, first consider the capabilities ofsupporting the 1+1 linear MSP.

In the case of the OptiX 155/622H, the capabilities of supporting the 1+1 Linear MSP are asfollows:

l An OptiX 155/622H system supports a maximum of three 1+1 linear MSP groups.



4-5

l The switching and bridging mode supports the single-ended and dual-ended switchings.

l The switching revertive mode supports the revertive mode and non-revertive mode.

4.5.2 Planning PrinciplesTo rationally and effectively plan the 1+1 linear MSP, the planning principles should befollowed.

Adhere to the following principles when planning the 1+1 linear MSP.

l Do not use different optical interfaces on one multichannel optical interface board to formthe 1+1 protection group. Otherwise, the protection function is unavailable when the boardfails.

l The switching and bridging mode should be set to the single-ended switching.

l The switching revertive mode should be set to the non-revertive mode.

l The switching restoration time is required to be set to 600s.

l It is recommended that you set the B2_SD as the trigger condition of the linear MSP ringprotection switching.

4.6 Planning the 1:N Linear MSPThe 1:N linear MSP is used in the SDH chain network. One protection channel protects serviceson N working channels. However, two faulty working channels cannot be protected at the sametime. When all the channels are normal, the protection channel can carry extra services.

4.6.1 Capabilities of Supporting the 1:N Linear MSPWhen planning the 1:N linear MSP for the OptiX 155/622H, first consider the capabilities ofsupporting the 1:N linear MSP.

4.6.2 Planning PrinciplesTo rationally and effectively plan the 1:N linear MSP, the planning principles should befollowed.

4.6.1 Capabilities of Supporting the 1:N Linear MSPWhen planning the 1:N linear MSP for the OptiX 155/622H, first consider the capabilities ofsupporting the 1:N linear MSP.

The OptiX 155/622H supports the 1:N linear MSP at the following levels:

l 1:N (1≤N≤5) linear MSP at the STM-4 level

l 1:N (1≤N≤5) linear MSP at the STM-1 level

In the case of the OptiX 155/622H, the capabilities of supporting the 1:N linear MSP are asfollows:

l The switching and bridging mode is the dual-ended switching.

l The switching revertive mode is the revertive.

4.6.2 Planning PrinciplesTo rationally and effectively plan the 1:N linear MSP, the planning principles should befollowed.



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Adhere to the following principles when planning the 1:N linear MSP.

l Do not use different optical/electrical interfaces on the same multichannel optical/electricalinterface board to form a 1:N protection group. Otherwise, the protection function isunavailable when the board fails.

l In the 1:N protection scheme, the protection route can carry extra services, but the extraservices cannot be protected.

l It is recommended that you set the WTR time of the linear MSP ring to 600s.

l It is recommended that you set the B2_SD as the trigger condition of the linear MSP ringprotection switching.

4.7 Planning the DNI ProtectionThe DNI protection can be configured on two interconnected nodes. The DNI protectionenhances the reliability of the services between the two rings.

4.7.1 Capabilities of Supporting the DNI ProtectionWhen planning the DNI protection for the OptiX 155/622H, first consider the capabilities ofsupporting the DNI protection.

4.7.2 Planning PrinciplesTo rationally and effectively plan the DNI protection, the planning principles should be followed.

4.7.1 Capabilities of Supporting the DNI ProtectionWhen planning the DNI protection for the OptiX 155/622H, first consider the capabilities ofsupporting the DNI protection.

The OptiX 155/622H supports the DNI protection compliant with ITU-T G.842.

4.7.2 Planning PrinciplesTo rationally and effectively plan the DNI protection, the planning principles should be followed.

Adhere to the following principles when planning the DNI protection.

l The DNI network combines the ring network and the chain network. Two rings in a DNInetwork can be configured with the SNCP or MSP.

l The chain that connects the two rings can be configured with the DNI protection or thefiber-shared virtual trail protection.

4.8 Planning the Fiber-Shared Virtual Trail ProtectionFor the fiber-shared virtual trail protection, two or multiple ring networks share the same fiber.The capacity of the fiber is classified and divided into different protection groups in VC-4granularities. Thus, multiple network protection schemes can be used in one optical fiber. Thefiber-shared virtual trail protection enhances the survivability of the network and bandwidthutilization.

4.8.1 Capabilities of Supporting the Fiber-Shared Virtual Trail ProtectionWhen planning the fiber-shared virtual trail protection for the OptiX 155/622H, first considerthe capabilities of supporting the fiber-shared virtual trail protection.



4-7

4.8.2 Planning PrinciplesTo rationally and effectively plan the fiber-shared virtual trail protection, the planning principlesshould be followed.

4.8.1 Capabilities of Supporting the Fiber-Shared Virtual TrailProtection

When planning the fiber-shared virtual trail protection for the OptiX 155/622H, first considerthe capabilities of supporting the fiber-shared virtual trail protection.

The OptiX 155/622H supports two MSP rings sharing the same section of fiber.

4.8.2 Planning PrinciplesTo rationally and effectively plan the fiber-shared virtual trail protection, the planning principlesshould be followed.

When planning the fiber-share virtual trail protection, follow a certain principle.

Normally, in the case of the optical-path-shared MSP, two low-rate line units share the samehigh-rate line unit.

4.9 Planning the VP-Ring and VC-Ring Protection Schemesfor the ATM Service

The VP-Ring and VC-Ring, used for the ATM services, can coexist with the MSP and SNCPschemes at the SDH layer.

4.9.1 Capabilities of Supporting the VP-Ring and VC-Ring Protection Schemes for the ATMServiceWhen planning the VP-Ring and VC-Ring protection for the OptiX 155/622H, first consider thecapabilities of supporting the VP-Ring and VC-Ring protection.

4.9.2 Planning PrinciplesTo rationally and effectively plan the VP-Ring and VC-Ring protection, the planning principlesshould be followed.

4.9.1 Capabilities of Supporting the VP-Ring and VC-RingProtection Schemes for the ATM Service

When planning the VP-Ring and VC-Ring protection for the OptiX 155/622H, first consider thecapabilities of supporting the VP-Ring and VC-Ring protection.

The ATM board for the OptiX 155/622H supports the ATM layer protection schemesrecommended by ITU-T I.630, including the VP-Ring and VC-Ring protection schemes.

In the case of the OptiX 155/622H, the capabilities of supporting the VP-Ring and VC-Ringprotection schemes for the ATM services are as follows:

l The VP-Ring and VC-Ring protection schemes include the 1+1 protection and the 1:1protection.– In the case of the 1+1 protection, the switching occurs at the sink end of the service,

and the protection mode is the revertive mode.



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– In the case of the 1:1 protection, the switching occurs at both the source and sink endsof the service, and the protection mode is the non-revertive mode.

l The VP-Ring and VC-Ring protection schemes can coexist with the MSP and SNCPprotection schemes for the SDH layer.

4.9.2 Planning PrinciplesTo rationally and effectively plan the VP-Ring and VC-Ring protection, the planning principlesshould be followed.

Adhere to the following principles when planning the VP-Ring and VC-Ring protection schemesfor the ATM services.

l It is recommended that you use the bidirectional MSP ring and VP-Ring/VC-Ring to formthe network. In this case, the VP-Ring or VC-Ring protection should be configured with ahold-off time, which should exceed 4s. When the switching conditions are met, activatethe protection for the SDH layer first. If the switching at the SDH layer fails, activate theVP-Ring or VC-Ring protection to realize the layered protection.

l In a network, when the VP-Ring or VC-Ring coexists with non-protection rings, the hold-off time should be set to 0s. In this case, the VP-Ring or VC-Ring protection is of the firstlevel protection.

l Other protection schemes for the SDH layer can be combined with the VP-Ring or VC-Ring. This configuration is not recommended because it is relatively complex and requiresgreater bandwidth.



4-9

5 Planning the DCN

About This Chapter

The OptiX 155/622H can construct the DCN in three ways, HWECC, IP over DCC, and OSIover DCC. When planning the DCN, adhere to the basic principles and specific principles fordifferent construction modes.

5.1 DCN Schemes Supported by the EquipmentIn the SDH network, the T2000 communicates with NEs through the DCN, and thus the T2000can manage and maintain the NEs. The NEs in the DCN use the DCC bytes to communicatewith each other.

5.2 Basic PrinciplesWhen constructing the DCN, select proper communication protocols according to the actualnetworking situation, and follow the planning principles.

5.3 Planning NE IDs and IPsNE IDs are used to identify Huawei transmission equipment. Thus, the NE IDs should beconfigured when the DCN network uses the HWECC, IP over DCC, and OSI over DCCprotocols.

5.4 Planning the HWECCFor the HWECC, the data that supports the HWECC protocol is transmitted in the DCC. TheHWECC protocol, developed by Huawei, is a private communication protocol used for the DCNnetworking of the optical equipment.

5.5 Planning the IP over DCCFor the IP over DCC, the data that supports the TCP/IP protocol is transmitted in the DCC.

5.6 Planning the OSI over DCCFor the OSI over DCC, the data that supports the OSI protocol is transmitted in the DCC.

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5.1 DCN Schemes Supported by the EquipmentIn the SDH network, the T2000 communicates with NEs through the DCN, and thus the T2000can manage and maintain the NEs. The NEs in the DCN use the DCC bytes to communicatewith each other.

The OptiX 155/622H can construct the DCN in the following ways:

l The HWECC protocol is used to transmit data through the DCC. It is a privatecommunication protocol developed by Huawei for the DCN networking of the opticalnetwork equipment.

l The IP over DCC indicates that the data transmitted through the DCC supports thetransmission control protocol and internet protocol (TCP/IP).

l The OSI over DCC indicates that the data transmitted through the DCC supports the opensystems interconnection (OSI) protocol.

The DCC of the OptiX 1155/622H has two resource allocation modes: one uses the D1–D3 bytesas physical transmission channels, and the other uses the D1–D3 bytes and the D4–D12 bytesas physical transmission channels. The details about the DCC resource allocation modes of theOptiX 155/622H are listed as follows:

l Mode 1: Supports 40 D1–D3 channels.

l Mode 2: Supports 20 D1–D3 channels and 6 D4–D12 channels.

NOTE

When the OptiX 155/622H forms a hybrid network with equipment from other vendors that does not supportthe IP or OSI standard communication protocol, the hybrid network provides solutions of transparenttransmission through the DCC bytes.

5.2 Basic PrinciplesWhen constructing the DCN, select proper communication protocols according to the actualnetworking situation, and follow the planning principles.

The principles for planning the DCN are as follows:

l When the OptiX 155/622H constructs a network with other Huawei equipment, theHWECC or IP over DCC protocol is recommended. Use the same communication protocolin the entire DCN network.

l When the OptiX 155/622H constructs a hybrid network with equipment from other vendors,use the IP over DCC or OSI over DCC protocol according to the protocol supported by theequipment from other vendors.

l The OptiX 155/622H constructs a hybrid network with equipment from other vendors. Inthis case, if the equipment from other vendors do not support the IP over DCC or OSI overDCC, use the DCC bytes to transparently transmit the management information.

l When a communication protocol is used to construct the DCN network, properly set theDCN network scale and divide the network according to the network situation. Thus, theeffect of large network scale on the DCN network can be reduced.

l The DCN network should be of the ring type to ensure the reliability of the networkcommunication. Thus, route protection can be provided when fiber cuts or NE

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abnormalities occur. If fibers of the equipment cannot form a ring, extra DCN channelsshould be constructed to form a ring, and thus the route protection function can be realized.

5.3 Planning NE IDs and IPsNE IDs are used to identify Huawei transmission equipment. Thus, the NE IDs should beconfigured when the DCN network uses the HWECC, IP over DCC, and OSI over DCCprotocols.

Because gateway NEs need to communicate with the T2000 through the IPs, only the IPs of thegateway NEs need to be set.

The ID is independent of the IP, and thus they can be set separately. When the default ID (49136)of a gateway NE is modified, the IP of the gateway NE also changes. In other cases, the IP,however, does not change with the changed ID.

The principles for planning the NE IDs and IPs are as follows:

l The ID of each NE should be unique.

l In the same DCN network, the ID of each NE should be unique.

l An NE ID is 24 bits in binary, which can be divided into the former eight bits and the latter16 bits.– The former eight bits indicate the extended ID (the default value is 9), also called the

subnet number, which identifies different subnets. The subnet number cannot be 0 or0xFF (255 in decimal).

– The latter 16 bits indicate the basic ID. The value of the basic ID cannot be 0 or 0xBFF0(49136 in decimal), or be greater than 0xBFF0.

l In the ring network, the NE IDs should be increased one by one in the same direction alongthe ring network.

l A complex network should be divided into rings and chains. First set IDs for NEs on thering from 1 to N, and then set the IDs for NEs on the chain as N+1, N+2, ...

The principles for planning the NE IPs are listed as follows:

l The IPs of the gateway NEs should be set according to the IP planning of the external DCN.The IPs of the non-gateway NEs do not require to be set.

l The default subnet is 129.9.0.0, and the default subnet mask is 255.255.0.0.

5.4 Planning the HWECCFor the HWECC, the data that supports the HWECC protocol is transmitted in the DCC. TheHWECC protocol, developed by Huawei, is a private communication protocol used for the DCNnetworking of the optical equipment.

5.4.1 Capabilities of Supporting the HWECCThe OptiX 155/622H supports the HWECC. After the NE IDs in the network are set, the ECCcommunication is available without other settings.

5.4.2 Planning PrinciplesWhen constructing the DCN by using the HWECC, follow the basic planning principles andprinciples for planning the NE IDs, NE IP addresses, and gateway NEs.



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5.4.1 Capabilities of Supporting the HWECCThe OptiX 155/622H supports the HWECC. After the NE IDs in the network are set, the ECCcommunication is available without other settings.

The HWECC of the OptiX 155/622H supports communication through fibers or Ethernet cables.When no optical routes are available between nodes, set the extended ECC through Ethernetcables.

5.4.2 Planning PrinciplesWhen constructing the DCN by using the HWECC, follow the basic planning principles andprinciples for planning the NE IDs, NE IP addresses, and gateway NEs.

Basic PrinciplesThe HWECC protocol is mainly used to construct the DCN between Huawei transmissionequipment. Adhere to the following principles when planning the HWECC.

l When the OptiX 155/622H or other Huawei OptiX OSN series equipment is used as thegateway NE, there should be less than 100 NEs in each HWECC subnet. When the OptiX10G , OptiX 2500+ is used as the gateway NE, there should be less than 50 NEs in eachHWECC subnet.

l The HWECC subnet should be of the ring type to ensure that the route protection is availablewhen fiber cuts or NE abnormalities occur.

l The ECC communication should not be performed between different HWECC subnets.

l The OptiX 155/622H automatically assigns ECC channels to each SDH board. As thenumber of the ECC channels is restrained by the equipment, the unnecessary ECC channelsshould be shut down.

l The number of nodes for each gateway NE is limited. Thus, when the number of nodesexceeds the limit, multiple gateway NEs can be configured.

l In normal situations, do not manually configure the ECC routes.

l When the extended ECC is required for communication, manually configure the extendedECC. The ECC should not be automatically extended. Thus, the bandwidth between NEs,which uses the ECC for communication, can be saved.

Principles for Planning NE IDsFor details, see 5.3 Planning NE IDs and IPs.

Principles for Planning IP AddressesThe IP address is used for communication between gateway NEs and the T2000. Thus, thegateway NEs should be configured with IP addresses. In addition, NEs that use the extendedECC functions should be configured with IP addresses.

In normal situations, the IP addresses of NEs need not manually configured. The IP addressesvary with the NE IDs. The format of the IP address is "129.E.A.B". "E" represents the extendedID of the NE (The value is 9 by default), and "A.B" represents the former eight bits and the lattereight bits. When the IP addresses are manually configured, the mapping relation between the IPaddresses and the IDs is unavailable.

By default, the subnet IP address is "129.9.0.0", and the subnet mask is "255.255.0.0".

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Principles for Planning Gateway NEs

Adhere to the following principles when planning the gateway NEs.

l Correctly set the IP addresses and subnet masks for the gateway NEs.

l Only the equipment connected to the T2000 through cables can be configured as gatewayNEs.

l In actual networking, the traffic volume of the gateway NEs is large. NEs with large ECCmanagement abilities should be configured as gateway NEs to ensure stablecommunication. In addition, gateway NEs should form a star network with other NEs toreduce the traffic volume of other NEs.

l It is recommended that you select a standby gateway NE to ensure the stability of thenetwork connection. The standby gateway NE should meet the requirements for the activegateway NE. In addition, the standby gateway NE can manage a portion of NEs, and theactive and standby gateway NEs mutually back up one another. Thus, the network stabilitycan be ensured.

5.5 Planning the IP over DCCFor the IP over DCC, the data that supports the TCP/IP protocol is transmitted in the DCC.

5.5.1 Capabilities of Supporting the IP over DCCThe OptiX 155/622H supports the IP over DCC, which is realized by the TCP/IP protocol.

5.5.2 Planning PrinciplesWhen constructing the DCN by using the IP over DCC, follow the basic planning principles andprinciples for planning the NE IDs and NE IP addresses.

5.5.1 Capabilities of Supporting the IP over DCCThe OptiX 155/622H supports the IP over DCC, which is realized by the TCP/IP protocol.l The NEs can be accessed to the T2000 through the gateway NEs or be directly accessed to

the T2000.l The TCP/IP application protocols, such as the FTP, Telnet, and SNMP, can be supported.

l The open shortest path first (OSPF) dynamic routing protocol and static routing protocolare supported.

Through the IP over DCC, the OptiX 155/622H can form a hybrid DCN network with equipmentfrom other vendors that supports the IP over DCC.

5.5.2 Planning PrinciplesWhen constructing the DCN by using the IP over DCC, follow the basic planning principles andprinciples for planning the NE IDs and NE IP addresses.

Basic Principles

The IP over DCC is mainly used for managing the hybrid network composed of the OptiX155/622H and equipment from other vendors that supports the IP over DCC. The IP over DCCis also used for managing the network composed of Huawei transmission equipment. Adhere tothe following principles when planning the IP over DCC.



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l In the same OSPF area, the number of NEs should not exceed 60.

l When the T2000 is used to manage the NEs, the number of non-gateway NEs accessed bythe same gateway NE should not exceed 60 (It is recommended that the number does notexceed 50.)


Principles for Planning IP AddressesAdhere to the following principles when planning the IP addresses.

l The IP address of each NE should be unique.

l NEs can use the standard IP address types A, B, and C, in which the IP addresses of NEsrange from "1.0.0.1" to "223.255.255.254". However, the broadcast addresses, networkaddresses and address "127.x.x.x" cannot be used. The subnet addresses "192.168.x.x" and"192.169.x.x" cannot be used.

l The IP addresses should work with the subnet masks, and they should support subnet masksthat have variable length.

l When the NEs directly access the T2000 by using the static routing protocol, it isrecommended that the gateway NEs and non-gateway NEs use different IP subnets.

l If two networks are connected through the Ethernet, they should be in different IP subnets.Thus, all NEs can be accessed through the T2000 when the network is divided into areas.

5.6 Planning the OSI over DCCFor the OSI over DCC, the data that supports the OSI protocol is transmitted in the DCC.

5.6.1 Capabilities of Supporting the OSI over DCCThe OptiX 155/622H supports the OSI over DCC, which is realized by using the lower fourlayers of protocols in the OSI standard seven-layer protocols.

5.6.2 Planning PrinciplesWhen constructing the DCN by using the OSI over DCC, follow the basic planning principlesand principles for planning the NE IDs, dividing network areas, selecting gateway NEs, andconfiguring roles of the LAPD of optical interfaces.

5.6.3 Planning CasesA case is given to show how to plan the address and node type, and how to select gateway NEsin the DCN network areas.

5.6.1 Capabilities of Supporting the OSI over DCCThe OptiX 155/622H supports the OSI over DCC, which is realized by using the lower fourlayers of protocols in the OSI standard seven-layer protocols.l The OptiX 155/622H uses the format of the simple network service access point (NSAP)

address as the node protocol identification.l The OptiX 155/622H supports three types of nodes, the end system (ES), level 1

Intermediate systems (L1-IS), and level 2 intermediate systems (L2-IS).l The IS-IS protocol is used between ISs to dynamically exchange the routing information.

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l The ES-IS protocol is used between the ES and the IS to perform the labor discovery andto exchange the routing information.

l The OptiX 155/622H supports the IS-IS Level 2 protocol to realize route layering.

l The OptiX 155/622H supports the TP4 protocol.

l NEs can be accessed to the T2000 through the gateway NEs or be directly accessed to theT2000.

Through the OSI over DCC, the OptiX 155/622H can form the hybrid DCN network withequipment from other vendors that supports the OSI over DCC.

5.6.2 Planning PrinciplesWhen constructing the DCN by using the OSI over DCC, follow the basic planning principlesand principles for planning the NE IDs, dividing network areas, selecting gateway NEs, andconfiguring roles of the LAPD of optical interfaces.

Basic PrinciplesThe features of the OSI over DCC communication are mainly used for managing the hybridnetwork constructed by the OptiX 155/622H and equipment from other vendors. When thenetwork is constructed only by Huawei transmission equipment, the OSI over DCC is notrecommended.

Only nodes at the network terminal can be configured as the ES. The functions of the ES routingare limited, which prevents network expansion. Thus, it is not recommended that you configurethe equipment as the ES during the networking. Huawei T2000 is operating as a node of the ESnetwork.

By default, the L1-IS is the node type of Huawei equipment, which only supports the intra-arearouting (Level 1 Routing).

If the equipment supports the inter-area routing (Level 2 Routing), the node type of the networkshould be configured as the L2-IS. The L2-IS maintains two routing tables. One of the tworouting tables is used for the intra-area routing, and the other is used for the inter-area routing.

The OptiX 155/622H supports the IS-IS Level 2 routing functions. When the OSIcommunication protocol is used, the network should be divided into areas according to thenetwork scale. In the entire DCN network, the number of areas cannot exceed 32. The numberof NEs in the same area cannot exceed 50.

The DCN network should be constructed as a ring network to provide route protection whenfiber cuts or NE abnormalities occur.

When the network is constructed by the OptiX 155/622H0 and equipment from other vendors,the network planning should be based on the design principles for equipment from other vendors.


Dividing Network AreasThe OSI protocol supports the functions of route layering. It uses the SYS ID to realize the intra-area routing, and the AREA ID to realize the inter-area routing. When planning the DCN



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network, properly divide the areas and assign the number of NEs in each area according to thetopology situation of the network.

In the case of a small-scale network with less than 50 NEs, there is no need to divide the networkinto areas. In this case, set the node types of all NEs to the L1-IS, and set the same AREA ID tothe NSAPs of all NEs.

In the case of a large-scale network, divide the network according to the following principles:

l Divide the DCN network into multiple areas to facilitate management.

l In each area, select multiple NEs to function as the L2-IS. It is recommended that you selecttwo NEs that mutually back up each other, in each area.

l In the entire DCN network, all L2 equipment should be consecutive.

Selecting Gateway NEsWhen the OSI over DCC is used to create the DCN, create the TP4 connection between theT2000 and the gateway NEs. The management data transmitted by the T2000 to the non-gatewayNEs should be forwarded by the gateway NEs. When creating the gateway NEs on the T2000interface, enter the NE IDs and specify the NSAP addresses. When creating the non-gatewayNEs, enter the NE IDs and specify their gateway NEs.

When all nodes in the DCN network are running the OSI protocol stack, it is recommended thatyou do not create all NEs as the gateway NEs. Select a portion of nodes as the gateway NEs,and create other NEs as the non-gateway NEs and specify their gateway NEs. Each gateway NEshould manage less than 64 non-gateway NEs to avoid overloading the gateway NEs andreducing the overall T2000 system performance.

When selecting the gateway NEs, select the NEs close to the T2000 on the topology. Thus, lessoverhead bytes are needed when the gateway NEs communicate with the T2000 and theefficiency can be enhanced.

If route layering is supported when you divide the areas, select one NE or multiple NEs in eacharea as the gateway NE or gateway NEs. When creating the non-gateway NEs, specify theirgateway NE in the local area.

Select a standby gateway NE for the non-gateway NEs to ensure the access reliability of theT2000.

Configuring Roles of the LAPD of Optical InterfacesWhen using the OSI protocol in the communication between optical interfaces, use the LAPDprotocol at the link layer realized by the optical interfaces. According to the requirements forthe LAPD protocol, set different roles for the LAPD at both the ends of the interconnected opticalinterfaces.

There are two roles of the LAPD, "User" and "Network". The principle for setting the roles isthat the optical interfaces at the two ends interconnected through fibers should be set to differentroles. The optical interface at one end should be set to "User", and that at the other end shouldbe set to "Network".

5.6.3 Planning CasesA case is given to show how to plan the address and node type, and how to select gateway NEsin the DCN network areas.

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Figure 5-1 shows that when the network is constructed by Huawei equipment and equipmentfrom other vendors, the OSI over DCC is used to construct the DCN network.

Figure 5-1 Planning of the DCN network in the OSI over DCC mode

Level 2 RoutingArea

HuaWei T2000

OSI LAN

ES

GNE

Legacy Network

GNE

New Network

Other Vendor's EMS

Huawei equipment

the third party equipment

OSI DCN

When planning the DCN network, divide the entire network into three areas. The AREA IDsfor the three areas are "391F1190", "391F1200", and "391F1210" (in hex). The equipment atthe core layer should be configured as the L2-IS, and the equipment at the edge layer should beconfigured as the L1-IS. In addition, select NEs close to the T2000 on the topology as the gatewayNEs.

After the NE AREA ID and NE ID are configured, the NSAP address of an NE is determinedand it is unique. For example, the NSAP address of NE 01 is 391F120008003E0900011D.

NOTE

As shown in Figure 5-1, the gateway NEs are the L2 equipment. However, this does not indicate that onlythe L2 equipment can be gateway NEs. The L1 equipment can also be gateway NEs.

When the OSI protocol is used, the L2-IS nodes in the network should be consecutive. Thus,when dividing areas, properly select the L2-IS nodes. As shown in Figure 5-1, NE 03 and NE



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13 are configured as L1-ISs. In this case, the T2000 cannot manage NEs in AREA B and AREAC, and the network communication is abnormal, because the L2 equipment is not consecutive.

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6 Planning Services

About This Chapter

The OptiX 155/622H supports multiple types of services. For the OptiX 155/622H, whenplanning the services, consider the access capacity for different services and planning principles.

6.1 Basic Planning PrinciplesThe OptiX 155/622H supports multiple services.

6.2 Maximum Service Access CapacityFor the OptiX 155/622H, the maximum service access capacity, access capacity of slots, andcross-connect capacity of slots are defined.

6.3 Planning SDH ServicesThe OptiX 155/622H supports multiple SDH services. When planning the SDH services, followthe basic principles.

6.4 Planning PDH ServicesThe OptiX 155/622H supports multiple PDH services. When planning the PDH services, followthe basic principles.

6.5 Planning Ethernet ServicesThe OptiX 155/622H supports multiple Ethernet services. When planning the Ethernet services,follow the basic principles and choose proper principles according to the actual networksituation.

6.6 Planning ATM ServicesThe OptiX 155/622H supports multiple ATM services. When planning the ATM services, followthe basic principles.

6.7 Planning DDN ServicesThe OptiX 155/622H supports multiple types of DDN services. When planning the DDNservices, follow the basic principles.

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6.1 Basic Planning PrinciplesThe OptiX 155/622H supports multiple services.

When planning the services, follow the basic principles:

l Analyze the service requirements.

l Consider the service requirements that can be met in a transmission network.

l Determine the proper schemes for providing services. The following factors should beconsidered:– Valid slots for service boards

– Service routes

– Aligning sequence of services in a VC-4

l Determine the interface types for services.

l Check for the available network resources when planning new services for the existingnetwork. The available resources involve the higher order cross-connection resources,lower order cross-connection resources and VC-4 paths.

l Consider the capability of the network and the equipment in the network of supportingfuture services.

6.2 Maximum Service Access CapacityFor the OptiX 155/622H, the maximum service access capacity, access capacity of slots, andcross-connect capacity of slots are defined.

6.2.1 Service Access CapacityThe capacity of services that the OptiX 155/622H can access varies according to the type andquantity of the configured boards.

6.2.2 Access Capacity of SlotsThe OptiX 155/622H provides six logical slots to house service boards. The maximum accesscapacity is 26xVC-4s.

6.2.3 Cross-Connect CapacityThe OptiX 155/622H provides a cross-connect capacity at the VC-4/VC-3/VC-12 level that isequivalent to 26x26 VC-4s

6.2.1 Service Access CapacityThe capacity of services that the OptiX 155/622H can access varies according to the type andquantity of the configured boards.

Table 6-1 lists the maximum capacity of the OptiX 155/622H for accessing different services.

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Table 6-1 Service access capacity of the OptiX 155/622H

Service Type Maximum Number ofServices

STM-4 standard service 5

STM-1 standard service 16

STM-1 (electrical) service 6

E3 service 9

T3 service 9

E1 service 112

E1/T1 service 96

N x 64 kbit/s service (N = 1–31) 12

Framed E1 service 48

FE (optical) service 8

FE service 24

GE service 3

STM-1 ATM service 4

6.2.2 Access Capacity of SlotsThe OptiX 155/622H provides six logical slots to house service boards. The maximum accesscapacity is 26xVC-4s.

Figure 6-1 shows the access capacity of slots of the OptiX 155/622H.

Figure 6-1 Access capacity of service board slots of the OptiX 155/622H

IU1

FAN POI/POU

IU2IU3

IU4

SCB

622Mbit/s

622Mbit/s 622Mbit/s 622Mbit/s

IU5 IU61.25Gbit/s 311Mbit/s

NOTESlots IU5 and IU6 in Figure 6-1 are logical slots, and they are actually integrated on the SCB board.

6.2.3 Cross-Connect CapacityThe OptiX 155/622H provides a cross-connect capacity at the VC-4/VC-3/VC-12 level that isequivalent to 26x26 VC-4s



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6.3 Planning SDH ServicesThe OptiX 155/622H supports multiple SDH services. When planning the SDH services, followthe basic principles.

6.3.1 Capability of Supporting SDH ServicesThe OptiX 155/622H supports the SDH services at the STM-1 and STM-4 levels.

6.3.2 Planning PrinciplesAdhere to the following principles when planning SDH services.

6.3.1 Capability of Supporting SDH ServicesThe OptiX 155/622H supports the SDH services at the STM-1 and STM-4 levels.

Table 6-2 lists the SDH boards of the OptiX 155/622H and their features.

Table 6-2 SDH boards of the OptiX 155/622H and their features

Board Description InterfacingMode

Interface Type

OI4 1 x STM-4 optical interface board Interfacesavailable on thefront panel

SC

OI4D 2 x STM-4 optical interface board Interfacesavailable on thefront panel

SC/LC

OI2S 1 x STM-1 optical interface board Interfacesavailable on thefront panel

SC

OI2D 2 x STM-1 optical interface board Interfacesavailable on thefront panel

SC/LC

SL1Q 4 x STM-1 optical interface board Interfacesavailable on thefront panel

SC

SL1O 8 x STM-1 optical interface board Interfacesavailable on thefront panel

SC

SB2L 1 x STM-1 single-fiberbidirectional optical interfaceboard

Interfacesavailable on thefront panel

SC

SB2R 1 x STM-1 single-fiberbidirectional optical interfaceboard


SC

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Board Description InterfacingMode

Interface Type

SB2D 2 x STM-1 single-fiberbidirectional optical interfaceboard


SC

SLE 1 x STM-1 electrical interfaceboard


SMB

SDE 2 x STM-1 electrical interfaceboard


SMB

6.3.2 Planning PrinciplesAdhere to the following principles when planning SDH services.l Choose proper SDH processing boards according to the interface rate and interface quantity.

l Choose proper optical modules according to the distance among nodes in the network andthe attenuation. Proper optical modules must be used to avoid that the received opticalpower is lower than the receiver sensitivity or overload optical power.

6.4 Planning PDH ServicesThe OptiX 155/622H supports multiple PDH services. When planning the PDH services, followthe basic principles.

6.4.1 Capability of Supporting PDH ServicesThe OptiX 155/622H supports the E1, E1/T1 E3 and T3 services.

6.4.2 Planning PrinciplesChoose proper PDH processing boards and interface boards according to the actual service types.Configure the TPS protection for the PDH processing boards as required.

6.4.1 Capability of Supporting PDH ServicesThe OptiX 155/622H supports the E1, E1/T1 E3 and T3 services.

Table 6-3 lists the PDH boards of the OptiX 155/622H and their features.

Table 6-3 PDH boards of the OptiX 155/622H and their features

Board Description Interfacing Mode InterfaceType

SP1S 4 x E1 processing board Interfaces available onthe front panel

2 mm HM

SP1D 8 x E1 processing board Interfaces available onthe front panel

2 mm HM



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Board Description Interfacing Mode InterfaceType

SP2D 16 x E1 processing board Interfaces available onthe front panel

2 mm HM

PD2S 16 x E1 processing board Interfaces available onthe front panel

2 mm HM

PD2D 32 x E1 processing board Interfaces available onthe front panel

2 mm HM

PD2T 48 x E1 processing board Interfaces available onthe front panel

2 mm HM

SM1S 4 x E1/T1 processing board Interfaces available onthe front panel

2 mm HM

SM1D 8 x E1/T1 processing board Interfaces available onthe front panel

2 mm HM

PM2S 16 x E1/T1 processing board Interfaces available onthe front panel

2 mm HM

PM2D 32 x E1/T1 processing board Interfaces available onthe front panel

2 mm HM

PM2T 48 x E1/T1 processing board Interfaces available onthe front panel

2 mm HM

PE3S 1 x E3 processing board Interfaces available onthe front panel

SMB

PE3D 2 x E3 processing board Interfaces available onthe front panel

SMB

PE3T 3 x E3 processing board Interfaces available onthe front panel

SMB

PT3S 1 x T3 processing board Interfaces available onthe front panel

SMB

PT3D 2 x T3 processing board Interfaces available onthe front panel

SMB

PT3T 3 x T3 processing board Interfaces available onthe front panel

SMB

6.4.2 Planning PrinciplesChoose proper PDH processing boards and interface boards according to the actual service types.Configure the TPS protection for the PDH processing boards as required.

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6.5 Planning Ethernet ServicesThe OptiX 155/622H supports multiple Ethernet services. When planning the Ethernet services,follow the basic principles and choose proper principles according to the actual networksituation.

6.5.1 Capability of Supporting Ethernet ServicesThe OptiX 155/622H supports four types of Ethernet services, including EPL, EVPL, EPLAN,and EVPLAN.

6.5.2 Planning PrinciplesWhen planning the Ethernet services, follow the basic principles and select the correspondingservice types according to the actual network situation.

6.5.3 Planning Transparently Transmitted EPL ServicesThe transparently transmitted EPL services can be used to plan the Ethernet services.

6.5.4 Planning Port-Shared EVPL ServicesThe port-shared EPL services can be used to plan the Ethernet services.

6.5.5 Planning VCTRUNK-Shared EVPL ServicesThe VCTRUNK-shared EVPL services can be used to plan the Ethernet services.

6.5.6 Planning EVPL Services (Transit Scheme)The EVPL services (Transit Scheme) can be used to plan the Ethernet services.

6.5.7 Planning EPLAN ServicesThe EPLAN services can be used to plan the Ethernet services.

6.5.8 Planning EVPLAN ServicesThe EVPLAN services can be used to plan the Ethernet services.

6.5.1 Capability of Supporting Ethernet ServicesThe OptiX 155/622H supports four types of Ethernet services, including EPL, EVPL, EPLAN,and EVPLAN.

The OptiX 155/622H provides multiple types of Ethernet boards to support different Ethernetservices. These boards are classified into two categories according to their supportedencapsulation protocols. Table 6-4 lists the Ethernet boards that support the multi-link point topoint protocol. Table 6-5 lists the Ethernet boards that support the generic framing procedure.

Table 6-4 Features of the ET1, ET1O, ET1D, and EF1

Function ET1 ET1O ET1D EF1

Number of FEelectricalinterfaces

8 8 2 4

Number of FEopticalinterfaces

- - - 2



6-7

Function ET1 ET1O ET1D EF1

Connector type RJ-45 RJ-45 RJ-45 Electrical:RJ-45Optical: LC

Valid slot IU4 IU4 IU1, IU2, IU3 IU4

Working mode

Electricalinterface

10/100BASE-T(X)

10/100BASE-T(X)

10/100BASE-T(X)

10/100BASE-T(X)

Opticalinterface

- - - 100BASE-FX

Encapsulationprotocol

ML-PPP

VC-4 bandwidthon the SDH side

1 1 1 1

Boundbandwidth

48 x E1 48 x E1 16 x E1 48 x E1

Number ofVCTRUNKs

16 16 16 16

Layer 2switching

- Supported Supported Supported

VLAN Supported Supported Supported Supported

EVPL - - - -

EPL Supported - Supported -

EPLAN - Supported Supported Supported

EVPLAN - - - -

RSTP - Supported Supported Supported

IGMP-Snooping - Supported Supported Supported

RMON Supported Supported Supported Supported

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Table 6-5 Features of the EFS, EFSC, EFT, ELT2, and EGT

Function EFS EFSC EGS EFT ELT2 EGT

Number of FEelectricalinterfaces

4 12 - 4 - -

Number of FEoptical interfaces

- - - - 2 -

Number of GEoptical interfaces

- - 1 - - 1

Connector type RJ-45 RJ-45 LC RJ-45 LC LC

Valid slot IU1, IU2,IU3

IU4 IU1,IU2,IU3

IU1,IU2,IU3

IU1, IU2,IU3

IU1, IU2,IU3

Workingmode

FEelectricalinterface

10/100BASET(X)

10/100BASE-T(X)

- 10/100BASE-T(X)

- -

FE opticalinterface

- - - - 100BASE-FX

-

GE opticalinterface

- - 1000BASE-SX/LX/ZX

- - 1000BASE-SX/LX/ZX

VC-4 bandwidthon the SDH side

4 4 4 2 2 2

Boundbandwidth

12 x VC-3 or126 x VC-12+ 6 x VC-3

12 xVC-3 or126 xVC-12 +6 x VC-3

12 xVC-3 or126 xVC-12+ 6 xVC-3

6 xVC-3 or63 x V-C12 + 3x VC-3

6 x VC-3or 63 xVC-12 +3 x VC-3

6 x VC-3or 63 xVC-12

Number ofVCTRUNKs

24 24 24 4 2 1

Layer 2switching

Supported Supported

Supported

- - -

VLAN Supported Supported

Supported

- - -

EVPL Supported Supported

Supported

- - -

EPL Supported Supported

Supported

Supported

Supported

Supported

EPLAN Supported Supported

Supported

- - -



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Function EFS EFSC EGS EFT ELT2 EGT

EVPLAN Supported Supported

Supported

- - -

STP Supported Supported

Supported

- - -

GFP Supported Supported

Supported

Supported

Supported

Supported

LAPS - - - Supported

Supported

Supported

LPT Supported Supported

Supported

- - -

Test frame Supported Supported

Supported

Supported

Supported

Supported

CAR Supported Supported

Supported

- - -

IGMP-Snooping Supported Supported

Supported

- - -

LCAS V2 Supported Supported

Supported

Supported

Supported

Supported

6.5.2 Planning PrinciplesWhen planning the Ethernet services, follow the basic principles and select the correspondingservice types according to the actual network situation.

Basic Planning Principles

Adhere to the following principles when planning Ethernet services:

l The Ethernet data frames should be encapsulated before being accessed into an SDHnetwork. The connected Ethernet boards should encapsulate data frames in the same format.

l The Ethernet boards have GE and FE optical interfaces. Optical interfaces of the same typeshould be used to connect Ethernet processing boards.

l Choose a proper optical module for the Ethernet board with GE optical interfaces accordingto the transmission distance.

l Set LCAS, CAR and flow control for the Ethernet services as required.

Selection of Service Types

Ethernet services are of four types, which are EPL, EVPL, EPLAN and EVPLAN.

EPL service

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l The EPL service uses the line bandwidth exclusively and is isolated from other services.Hence, the EPL service is of higher security. This scheme for EPL services can be used forprivate lines of key customers.

l The point-to-multipoint transmission of Ethernet services is realized. By identifying VLANtags, several EPL services can share the same port or VCTRUNK. As a result, the portresources are saved. The services of different users share the bandwidth and content forbandwidth in a fair manner. Such a scheme is applicable if users require large-volumeservices at different time.

EVPL service

l The VLAN IDs and MPLS tags can be used to isolate the EVPL services of different usersor the EVPL services of different departments in the same company. In this way, the dataof the same VLAN in the same link is isolated.

l Ingress and Egress indicate two operations performed to the label switch path (LSP). Ingressindicates that the MPLS label is added and Egress indicates that the MPLS label is stripped.When the EVPL services enter a network, the Ingress operation is performed. When theEVPL services exit a network, the Egress operation is performed. This is a typicalapplication of the EVPL service.

l The EVPL service can be applied in the Transit scheme to transparently transmit andforward the MPLS data packets.

l The transmission efficiency of the EVPL service is low and complex configuration isrequired. As a result, use the EPL service instead of the EVPL service unless the EPLservice is required.

EPLAN service

l The EPLAN services can dynamically share the bandwidth at multiple points. As a result,the EPLAN service is in line with the dynamic feature of data services and the bandwidthresources are saved.

l The configured EPLAN service should not form a ring. Otherwise, a broadcast storm iscaused. If the EPLAN service is configured into a ring, the RSTP protocol should be enabledin the network to avoid broadcast storms.

EVPLAN service

l The VLAN IDs and MPLS labels can be used to isolate the EVPLAN services of differentusers or the EVPLAN services of different departments in the same company.

l The EVPLAN services can dynamically share the bandwidth at multiple points. Differentfrom the EPLAN service, the EVPLAN service requires that any two nodes in the networkbe connected by an LSP to form a mesh network. In addition, the service features helpprevent broadcast storms effectively.

l The MPLS technology is applied for the EVPLAN service. As a result, the transmissionefficiency is lower than that of the EPLAN service and the configuration is more complex.Use the EPLAN service to meet the service requirements unless the EVPLAN service isspecifically required.

6.5.3 Planning Transparently Transmitted EPL ServicesThe transparently transmitted EPL services can be used to plan the Ethernet services.

Service RequirementCompany A and company B at NE 1 need to transmit data services respectively to company Aand company B at NE 2. It is required that services of company A and company B are totally



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isolated from each other. Both company A and company B provide 100M Ethernet electricalinterfaces. Company A requires 10M bandwidth and company B requires 45M bandwidth.

Networking Application

Services of company A and company B are required to be transparently transmitted between NE1 and NE 2. Two OptiX 155/622H systems can be used as NE 1 and NE 2. Figure 6-2 showsthe networking diagram.

Figure 6-2 Networking diagram for transparently transmitted EPL services

VCTRUNK 1PORT1

PORT2

VCTRUNK 1

VCTRUNK2 VCTRUNK2

POTR1

A

NE1 NE2

B B

A

PORT2

OptiX 155/622H Enterprise user

At NE 1, services from company A and company B are accessed respectively from Ethernetports. At NE 2, services from company A and company B are also respectively accessed fromEthernet ports.

In the line, the EPL service from company A is carried by one VCTRUNK and the EPL servicefrom company B is carried by another VCTRUNK.

Application SchemeUse the port routing scheme for the transparently transmitted EPL services.

Hardware ConfigurationConfigure one EFT for NE 1 and NE 2 to access Ethernet services from company A and companyB respectively.

Service Route

Table 6-6 lists the service routes.

Table 6-6 Service routes for the transparently transmitted EPL services

RouteLocation

NE 1 NE 2

Company A(NE 1←→NE2)

PORT1←→VCTRUNK1 VCTRUNK1←→PORT1

Five VC-12s are bound in VCTRUNK 1.

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RouteLocation

NE 1 NE 2

Company B(NE 1←→NE2)

PORT2←→VCTRUNK2 VCTRUNK2←→PORT2

One VC-3 is bound in VCTRUNK 2.

6.5.4 Planning Port-Shared EVPL ServicesThe port-shared EPL services can be used to plan the Ethernet services.

Service RequirementThe headquarters of company A is located at NE 1 and two departments are located at NE 2.The headquarters need to communicate with the two branches. The two departments should beisolated from each other and should each use 10M bandwidth. The Ethernet switch of companyA provides 100M Ethernet electrical interfaces and the Ethernet switch at the headquarterssupports the VLAN.

Networking ApplicationServices from the two departments are transmitted to the headquarters at NE 1 and are thenconverged. Services from the headquarters are also transmitted to the two departments at NE 2.The OptiX 155/622H equipment can be used to meet the service requirement. Figure 6-3 showsthe networking diagram.

Figure 6-3 Networking diagram for port-shared EPL services

VCTRUNK 1PORT1

VCTRUNK 2Headquarters of

company A

NE 1 NE 2

VCTRUNK2

VCTRUNK 1

Department 1


POTR1

PORT2

Department 2

Application SchemeUse the port+VLAN as the routing scheme for the port-shared EPL services. Figure 6-4 showsthe details.



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Figure 6-4 Application scheme for port-shared EPL services

Headquarters ofcompany A

NE 1 NE 2Department 2


PORT1

PORT2

VLAN100

PORT1

VLAN100VLAN200 VLAN200

VCTRUNK1VCTRUNK2

Department 1

In the converging direction, at NE 2, services of the two departments are accessed from Ethernetports of NE 2 and then are added with VLAN tags (VLAN ID: 100 and 200). The services aretransmitted by one VCTRUNK respectively to NE 1. The services are converged at NE 1 andare then output from one Ethernet port.

In the distributing direction, the Ethernet processing board of NE 1 processes the services (VLANID: 100 and 200) from the headquarters of company A. The Ethernet processing board of NE 1then uses different VCTRUNKs to distribute the respective services to the two departments atNE 2.

Hardware Configuration

Configure one ET1D for NE 1 and NE 2 to access Ethernet services from the headquarters anddepartments of company A respectively.

Service Route


Table 6-7 Service routes for the port-shared EPL services

RouteLocation

NE 1 NE 2

Headquarter←→department 1(NE 1←→NE2)

PORT1+VLAN ID: 100←→VCTRUNK1+VLAN ID: 100

VCTRUNK1+VLAN ID: 100←→PORT1+VLAN ID: 100


Headquarter←→department 2(NE 1←→NE2)

PORT1+VLAN ID: 200←→VCTRUNK2+VLAN ID: 200

VCTRUNK2+VLAN ID: 200←→PORT2+VLAN ID: 200


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6.5.5 Planning VCTRUNK-Shared EVPL ServicesThe VCTRUNK-shared EVPL services can be used to plan the Ethernet services.

Service RequirementTwo branches of company A are located at NE 1 and NE 2 respectively. The department ofbranch A needs to communicate with the same department of branch B. The service of onedepartment is isolated from the service of another department. The two departments should sharea 10M bandwidth. The VLAN ID for the services of the two departments of company A is 100.The two departments of company A can provide 100M Ethernet electrical interfaces.

Networking ApplicationThe services of the two departments are of the same VLAN ID and share a bandwidth. Hence,such services can be configured as EVPL services. The EVPL service is encapsulated in theMPLS-L2 VPN format and supports the identification of external labels (Tunnel) and internallabels (VC).

The OptiX 155/622H supports the EVPL service and can be used to meet the previoustransmission requirements. Figure 6-5 shows the networking diagram.

Figure 6-5 Networking diagram for the VCTRUNK-shared EVPL services

VCTRUNK 1

PORT1

PORT2 PORT2PORT1

NE 1 NE 2

Company A OptiX 155/622H

Department 1Department 1

Department 2Branch A Branch B

Department 2

Application SchemeThe port+MPLS routing scheme is used for the VCTRUNK-shared EVPL services. Figure6-6 shows the details.

Figure 6-6 Application scheme for the VCTRUNK-shared EVPL services

Branch A

NE 1 NE 2


Branch B

PEAdd label

P PE

VCTRUNK1

PORT2

PORT1PORT1

PORT2

Department 2

Department 1 Strip label Department 1

Department 2

P



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The services of the two departments are of the same VLAN ID and share a bandwidth. Hence,it is necessary to add MPLS labels for identification.

At NE 1, the services of departments 2 and 1 are accessed from Port 1 and Port 2, and are addedwith MPLS labels (Tunnel label and VC label). The Ethernet processing board converges andthen transmits the services in one VCTRUNK to NE 2.

At NE 2, the Ethernet processing board processes the services with different MPLS labels fromNE 1 and distributes the services to the two departments of branch B respectively, according tothe MPLS labels.

Hardware ConfigurationConfigure one EFS board for NE 1 to access Ethernet services of department 1 and department2.

Configure one EFS board for NE 2 to access Ethernet services of department 1 and department2.

Service RouteTable 6-8 lists the service routes.

Table 6-8 Routes for the VCTRUNK-shared EVPL services

RouteLocation

NE 1 NE 2

Department2

Port 1←→VCTRUNK 1+MPLSlabel 1

VCTRUNK 1+MPLS label 1←→Port1

Department1

Port 2←→VCTRUNK 1+MPLSlabel 2

VCTRUNK 1+MPLS label 2←→Port2


6.5.6 Planning EVPL Services (Transit Scheme)The EVPL services (Transit Scheme) can be used to plan the Ethernet services.

Service RequirementTwo branches of company A are located at different places and need to transmit data servicesto each other. The router that supports the MPLS is connected to the MSTP equipment. Thetransmitted data packets have the MPLS labels. The MSTP equipment transmits only the MPLSdata packets and the bandwidth is 10M. Company A provides 100M Ethernet electricalinterfaces.

Networking ApplicationThe OptiX 155/622H can be used to transparently transmit the MPLS data packets of the twobranches. Figure 6-7 shows the networking diagram.

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Figure 6-7 Networking diagram for EVPL services (Transit scheme)

VCTRUNK 1PORT1

VCTRUNK 1PORT1

Branch 1 ofcompany A

NE1 NE2


Branch 2 ofcompany A

Transit LSP Transit LSP

VCTRUNK

The Transit scheme for EVPL services can be applied to transparently transmit the MPLS datapackets.

Application SchemeThe port+transit LSP scheme is applied for the EVPL services.

All logical ports (Port and VCTRUNK included) of NE 1 and NE 2 are set as P ports. The LSPis of the Transit type. The label exchange is performed to the MPLS data packets, which arethen transparently transmitted.

Hardware ConfigurationConfigure one EFS for NE 1 and NE 2 respectively to access the MPLS data packets fromcompany A.

Service RouteTable 6-9 lists the service routes for the EVPL services (Transit scheme)

Table 6-9 Service routes for the EVPL services (Transit scheme)

RouteLocation

NE 1 NE 2

Company A Port 1+MPLS label 1←→VCTRUNK 1+MPLS label 2

VCTRUNK 1+MPLS label 2←→Port1+MPLS label 1

Five VC-12s are bound in VCTRUNK 1. The OptiX 155/622H supports the exchange of onlythe Tunnel labels.

6.5.7 Planning EPLAN ServicesThe EPLAN services can be used to plan the Ethernet services.

Service RequirementThree departments of company A are located at NE 1, NE 2 and NE 3. As required, the threedepartments can communicate with each other. The three departments dynamically share a 10M



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bandwidth. The Ethernet equipment of the company A provides 100M Ethernet electricalinterface and the VLAN ID is 100.


The three departments can communicate with each other and dynamically share a bandwidth.The EPLAN service meets the requirements. Using a virtual bridge (VB), the Ethernet processingboard of the OptiX 155/622H can perform Layer 2 switching on the Ethernet data. Hence, theOptiX 155/622H supports the EPLAN service. Figure 6-8 shows the networking diagram forthe EPLAN service.

Figure 6-8 Networking diagram for the EPLAN service

NE 1NE 2


NE3Department 3of company A

Access point

Port 1

Port 1

Port 1

VCTRUNK1

VCTRUNK2

VBVB

VCTRUNK1

VB

PORT1

VCTRUNK1

PORT1PORT1

Department 2 ofcompany A

Department 1ofcompany A

Application Scheme

The VB is used for the application of the EPLAN service.

Each NE in the system can create one or several VBs. Each VB establishes a port address table.The system updates the table by self-learning. Services of department 2 are accessed to NE 2.The data packets select the mapping VCTRUNK according to the port address table. The datapackets are then transmitted to department 1 and department 3.


Configure one EFS for NE 1 to access Ethernet services from department 1 of company A.



Service Route

Table 6-10 lists the routes for the EPLAN service.

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Table 6-10 Routes for the EPLAN service

RouteLocation

NE 1 NE 2 NE 3

Company A VB (Port 1,VCTRUNK 1) Filtertable (Port 1,VCTRUNK 1) forVLAN ID 100

VB (Port 1,VCTRUNK 1,VCTRUNK 2)Filtertable (Port 1,VCTRUNK 1,VCTRUNK 2) forVLAN ID 100

VB (Port 1,VCTRUNK 1) Filtertable (Port 1,VCTRUNK 1) forVLAN ID 100

Both VCTRUNK 1 and VCTRUNK 2 are bound with five VC-12s.

6.5.8 Planning EVPLAN ServicesThe EVPLAN services can be used to plan the Ethernet services.

Service RequirementThree departments of company A are located at NE 1, NE 2 and NE 3. As required, the threedepartments can communicate with each other. Three departments of company B are located atNE 1, NE 2 and NE 3. As required, the three departments also can communicate with each other.The services of company A and B are isolated from each other and share the line bandwidth.The data packets of company A and company B are of the same VLAN ID. Both company Aand company B provide 100M Ethernet electrical interfaces. The Ethernet equipment of userssupports the VLAN.

Networking ApplicationThe EVPLAN services can dynamically share the bandwidth and support the isolation of MPLSlabels for the data packets accessed into the same VLAN. The data services with the same VLANID are accessed into the same NE and dynamically share the bandwidth. The EVPLAN servicecan meet the service requirements. Figure 6-9 shows the networking diagram for the EVPLANservice.



6-19

Figure 6-9 Networking diagram for the EVPLAN service

NE 1 NE2


NE3

Access point

Port 1

LSP

Department 3 ofcompany B

Port 2

VB2VB1

VCTRUNK1

PORT1PORT2

VCTRUNK2

PE P

PE P

VB

VB1VCTRUNK1

PORT1 PORT2

VCTRUNK2PE P PE P

2VB1

VCTRUNK2

VCTRUNK1

PE P

PE PLSP LSP PORT1

PORT2VB2

VB2

Department 3of company A

Port 1Port 2

Department 2of company ADepartment 2 of

company B

Port 1

Port 2

Department 1of company B

Department 1of company A

Company B

Different from the EPLAN service, the EVPLAN service is further encapsulated in the MPLSformat. The data packets of the same VLAN ID are identified according to the MPLS labels.Hence, data packets of the same VLAN but of different VBs can be carried by the sameVCTRUNK. In this way, several departments of company A and company B dynamically sharethe bandwidth and have isolated services.

Application Scheme

The VB+MPLS routing scheme is used for the EVPLAN service.

The Ethernet processing boards of the OptiX 155/622H support the creation of VBs and theMPLS encapsulation. The EVPLAN service supports the MPLS encapsulation. Hence, severalVB users share the same VCTRUNK. In this way, several VB users dynamically share thebandwidth.

At NE 1, department 1 of company A is of VB1 and department 1 of company B is of VB2. Inone direction, VB1 and VB2 share VCTRUNK 1, which is bound with five VC-12s. In the otherdirection, VB1 and VB2 share VCTRUNK 2, which is also bound with five VC-12s. In this way,VB1 (company A) and VB2 (company B) dynamically share a 10M bandwidth. The applicationschemes for NE 2 and NE 3 are the same as that for NE 1.

The EVPLAN service requires that any two nodes be connected by an LSP.


Configure one EFS boards for NE 1. Use two Ethernet ports to access Ethernet services fromdepartment of company A and department 1 of company B respectively.

Configure one EFS boards for NE 2. Use two Ethernet ports to access Ethernet services fromdepartment 2 of company A and department 2 of company B respectively.

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Configure one EFS boards for NE 3. Use two Ethernet ports to access Ethernet services fromdepartment 3 of company A and department 3 of company B respectively.


Table 6-11 Routes for the EVPLAN service

RouteLocation

NE 1 NE 2 NE 3

Company A

VB1: Port 1, VCTRUNK 1(MPLS label 1),VCTRUNK 2 (MPLS label1) Filter table (Port 1,VCTRUNK 1, VCTRUNK2) for the VLAN ID 100

VB1: Port 1, VCTRUNK1 (MPLS label 1),VCTRUNK 2 (MPLSlabel 1) Filter table (Port1, VCTRUNK 1,VCTRUNK 2) for theVLAN ID 100

VB1: Port 1,VCTRUNK 1(MPLS label 1),VCTRUNK 2(MPLS label 1) Filtertable (Port 1,VCTRUNK 1,VCTRUNK 2) for theVLAN ID 100

Company B

VB2: Port 2, VCTRUNK 1(MPLS label 2),VCTRUNK 2 (MPLS label2) Filter table (Port 2,VCTRUNK 1, VCTRUNK2) for the VLAN ID 100

VB1: Port 1, VCTRUNK1 (MPLS label 1),VCTRUNK 2 (MPLSlabel 1) Filter table (Port1, VCTRUNK 1,VCTRUNK 2) for theVLAN ID 100

VB1: Port 1,VCTRUNK 1(MPLS label 1),VCTRUNK 2(MPLS label 1) Filtertable (Port 1,VCTRUNK 1,VCTRUNK 2) for theVLAN ID 100

Both VCTRUNK 1 and VCTRUNK 2 are bound with five VC-12s.

6.6 Planning ATM ServicesThe OptiX 155/622H supports multiple ATM services. When planning the ATM services, followthe basic principles.

6.6.1 Capability of Supporting the ATM ServicesThe OptiX 155/622H supports the ATM services, such as the CBR, rt-VBR, nrt-VBR, and UBR.

6.6.2 Planning PrinciplesWhen planning the ATM and IMA services, follow the basic principles and select thecorresponding service types according to the actual network situation.

6.6.3 Planning Transparently Transmitted ATM ServicesThe method of planning the transparently transmitted ATM services is defined.

6.6.4 Planning Multicast ATM ServicesThe method of planning the multicast ATM services is defined.

6.6.5 Planning Statistically Multiplexed ATM Services



6-21

The method of planning the statistically multiplexed ATM services is defined.

6.6.1 Capability of Supporting the ATM ServicesThe OptiX 155/622H supports the ATM services, such as the CBR, rt-VBR, nrt-VBR, and UBR.

The OptiX 155/622H provides two ATM boards, which are the AIUD and AIUQ. Table 6-12lists the features of the AIUD and AIUQ.

Table 6-12 Features of the AIUD and AIUQ

Function AIUD AIUQ

Front panel interface 2 x STM-1 4 x STM-1

Connector type LC LC

Maximum ATM serviceaccess capability

155 Mbit/s

Mapping mode VC-3, VC-4

Service type CBR, rt-VBR, nrt-VBR, and UBR

Traffic type and QoS IETF RFC2514, ATM forum TM 4.0

Supported ATM multicastconnections

Spatial multicast and logical multicast

ATM protection (ITU-T I.630)

Unidirectional or bidirectional 1+1, 1:1 VP-Ring, VC-Ring

OAM function (ITU-T I.610)

AIS, RDI, LB (Loopback), CC (continuity check)

6.6.2 Planning PrinciplesWhen planning the ATM and IMA services, follow the basic principles and select thecorresponding service types according to the actual network situation.

Basic Planning Principles

The ATM service can be protected by using the protection schemes for the SDH network. It isrecommended to use a bidirectional MSP ring and a VP-Ring or VC-Ring for networking. Inthis way, if the SDH network does not provide any protection, you can use the VP-Ring or VC-Ring protection to protect the ATM service.

Set the traffic parameters according to the service type.

Selection of Application Schemes

The ATM board supports the transparent transmission, multicast and statistical multiplexing ofthe ATM service.

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The basic function of the MSTP equipment is to transparently transmit ATM services in a point-topoint manner. This function has the following features:

l The bandwidth of the SDH equipment is used exclusively and thus the bandwidth utilizationis of a low rate.

l The protection schemes for the SDH network are used to provide the SDH-layer protection.As a result, the reliability is increased.

The multicast is a point-to-point application scheme. For example, a message is transmitted fromthe central node to other nodes in the network. The multicast services are carried by the SDHnetwork. Each multicast service uses a specific bandwidth exclusively and thus the bandwidthutilization is of a low rate.

The statistical multiplexing of the ATM services is widely used to statistically multiplex ATMservices accessed from different nodes into one VC-4. The VC-4s are converged to one port ofthe central node and then transmitted to the ATM switch at the upper layer. In this way, boththe bandwidth resource and the port resource are saved.

6.6.3 Planning Transparently Transmitted ATM ServicesThe method of planning the transparently transmitted ATM services is defined.

Service RequirementThe ATM switch at one place needs to communicate with the ATM switch at another place. Thebandwidth is 100 Mbit/s. The ATM switch provides 155 Mbit/s optical interfaces and the servicetype is CBR.

The services between the two places are important and must be protected.

Networking ApplicationThe OptiX 155/622H can be used to transmit the ATM services between the two places.Figure6-10 shows the networking diagram.

Figure 6-10 Networking diagram for transparent transmission of ATM services

MSTP networkMSTP

ATM switchATM switch

155 Mbit/soptical interface

Working trail

Protection trailNE 1 NE 2


Use two OptiX 155/622H systems at the two places and the two systems are named NE 1 andNE 2. Each OptiX 155/622H NE is connected to the 155 Mbit/s optical interface of the ATMswitch.

The ATM services between NE 1 and NE 2 must be protected. For this purpose, configure aworking trail and a protection trail in the MSTP network. Configure the service as a pass-throughservice at the SDH NEs that the working trail and the protection trail involve.



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Application SchemeUse the point-to-point transparent transmission scheme.

The protection in the SDH network can be used to protect the service.

Hardware ConfigurationConfigure one AIUD for both NE 1 and NE 2 to access the 155 Mbit/s ATM service from theATM switch.

NOTEBecause the characteristics of the 155 Mbit/s optical interface on the ATM board are the same as thecharacteristics of the STM-1 optical interface on the SDH board, use the SDH line board (for example, theOI4 board) other than the ATM board if the MSTP equipment is not required to process ATM services.


Table 6-13 Routes for transparently transmitted ATM services

Route Type NE 1 NE 2

Working route ATM external port1←→ATMinternal port 1←→VC-4 (workingtrail)

VC-4 (working trail)←→ATM internal port 1←→ATM external port 1

Protection route ATM external 1←→ATM internalport 2←→VC-4(protection trail)

VC-4 (protection trail)←→ATM internal port2←→ATM external port 1

NOTE

The ATM external port is also the external optical interface where ATM services are accessed. The ATMinternal port is the logical port VCTRUNK, which is the port used to connect the ATM processing moduleand the SDH cross-connect module.

The VPI and VCI for the working route and the protection route can be the same or can be different.

6.6.4 Planning Multicast ATM ServicesThe method of planning the multicast ATM services is defined.

Service RequirementThe ATM service (TV program) at place A needs to be transmitted to places B, C and D in aunidirectional manner. The ATM service is from the ATM switch and the bandwidth for theservice is 50 Mbit/s.

The ATM switch provides 155 Mbit/s optical interfaces and the service is of the CBR type.

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The ATM processing boards of the OptiX 155/622H support the unidirectional multicast of theATM services.

Figure 6-11 shows the networking diagram.

Four OptiX 155/622H systems are used as NE 1, NE 2, NE 3 and NE 4 at the four placesrespectively. NE 1 at place A is the central node, which receives the ATM service from the ATMswitch and then multicasts the ATM service to NE 2, NE 3 and NE 4.

NE 2, NE 3 and NE 4 receive the multicast ATM service transmitted from the ATM switch.

Figure 6-11 Networking diagram for the multicast ATM services

STM-4 two-fiberunprotected ring

NE 1

NE 2NE 3

NE 4

OptiX 155/622H ATM switch DSLAM


155 Mbit/s opticalinterface

(1,32)

(1,33)

(1,34)



Numbers in the brackets indicatethe values of the VPI and VCI.

A

B

C

D

Application Scheme

The point-to-point multicast scheme is used first to duplicate the service from the ATM switchand then to transmit the service to NE 2, NE 3 and NE 4.


For NE 1, configure one AIUQ, which is used to access the 155 Mbit/s ATM service from theATM switch.

For each of NE 2, NE 3 and NE 4, configure one AIUQ board, which is used to receive themulticast service from NE 1.

Service Route




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Table 6-14 Routes for multicast ATM services

RouteLocation

NE 1 NE 2 NE 3 NE 4

NE 1 to NE2

Root connection:ATM externalport 1 (1, 32)→ATM internalport 1 (1, 32)→VC-4 (No.1)

p2p connection:VC-4 (No.1)→ATM internal port 1(1, 32)→ATMexternal port 1 (1,32)

- -

NE 1 to NE3

Leaveconnection:ATM externalport 1 (1, 32)→ATM internalport 2 (1, 33)→VC-4 (No.2)

VC-4 pass-through P2P connection:VC-4 (No.2)→ATM internal port1 (1, 33)→ATMexternal port 1 (1,33)

-

NE 1 to NE4

Leaveconnection:ATM externalport 1 (1, 32)→ATM internalport 3 (1, 34)→VC-4 (No.3)

- - p2pconnection:VC-4 (No.3)→ATMinternal port 1(1, 34)→ATMexternal port 1(1, 34)

NOTE

The external ATM port is also the external optical interface where ATM services are accessed. The internalATM port is the logical port VCTRUNK, which is the port used to connect the ATM processing moduleand the SDH cross-connect module.

The ATM service that NE 2, NE 3 and NE 4 receive is duplicated at the central node, NE 1. Hence, it isrequired to create one root connection and two unidirectional leaf connections at NE 1. The ATM servicein the root connection cannot be duplicated for the leaf connections.

The VC connection is used. The numbers in the brackets are values of the VPI and VCI. For example, (1,32) indicates that the VPI value is 1 and the VCI value is 32.

6.6.5 Planning Statistically Multiplexed ATM ServicesThe method of planning the statistically multiplexed ATM services is defined.

Service RequirementIn one city, a communication line is to be created and should cover places A, B, C and D. Theservices from the DSLAM nodes at places B, C and D should be transmitted to the ATM switchat place A. The ATM switch provides one 155 Mbit/s optical interface to access the ATM servicefrom each node. Table 6-15 lists the service requirements.

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Table 6-15 Requirements for statistically multiplexing ATM services

TransmissionMode

Source Node SinkNode

Bandwidth

Point topoint

NE 2 provides 155 Mbit/s POSinterfaces.

NE 1 3 x 10 Mbit/s

Point topoint

NE 3 provides 155 Mbit/s POSinterfaces.

NE 1 2 x 20 Mbit/s

Point topoint

NE 4 provides 155 Mbit/s and 34 Mbit/sPOS interfaces.

NE 1 1 x 30 Mbit/s1 x 20 Mbit/s

The ATM service at each node is of the CBR type.

The ATM service must be protected.

Networking ApplicationThe total bandwidth for the ATM services converged to NE 1 is 120 Mbit/s (3 x 10 Mbit/s + 2x 20 Mbit/s + 30 Mbit/s + 20 Mbit/s). The ATM services can share a VC-4 bandwidth.

The OptiX 155/622H can be used to transmit and converge the data services. The ATM servicescan be statistically multiplexed in a point-to-point manner and share a bandwidth on the ring.The OptiX 155/622H is used as a multi-service transmission platform (MSTP) to transmit andconverge ATM services.


Figure 6-12 Networking diagram for the statistically multiplexed ATM services

Two-fiberbidirectional

MSP ring

NE 1

NE 2

NE 3

NE 4

OptiX 155/622H ATM switch DSLAM

20M


(1,0)(2,0)(3,0)

(4,0)(5,0)

(6,0)(7,0)

20M

20M

30M

Numbers in the brackets indicatethe values of the VPI and VCI.

10M

10M

10M



6-27

Four OptiX 155/622H systems are used at the four places and are named NE 1, NE 2, NE 3 andNE 4 respectively. NE 1 is the central node, which receives and converges the ATM servicesfrom other nodes, and then transmits the ATM services to the ATM switch.

NE 2, NE 3 and NE 4 receive the ATM services from the DSLAM nodes and then multiplex theATM services into one VC-4. The VC-4 is then transmitted to the central node, NE 1.

Application Scheme

The statistical multiplexing scheme is used to statistically multiplex the ATM services accessedfrom NE 2, NE 3 and NE 4 into one VC-4. The ATM services are converged to one port of NE1 and then transmitted to the ATM switch at the upper layer.

The two-fiber bidirectional MSP ring protection can be used to protect the ATM services withthe switching time being less than 50 ms.


For NE 1, configure one AIUQ board, which is used to converge the ATM services from eachnode and transmit the ATM services to the ATM switch at the upper layer through a 155 Mbit/s port.

For each of the NEs, NE 2, NE 3 and NE 4, configure one AIUQ board, which is used to receivethe ATM services from the DSLAM nodes.

Service Route


Table 6-16 Routes for the statistically multiplexed ATM services

RouteLocation

NE 1 NE 2 NE 3 NE 4

NE 1 toNE 2

ATM externalport 1 (1–3, 0)←→ATMinternal port 1(1–3, 0)←→VC-4 (No.1)

10 Mbit/s service 1:ATM external port 1(1, 0)←→ATMinternal port 1 (1, 0)←→VC-4 (No.1)

Pass-throughservice: ATMinternal port 2(1–3, 0)←→ATM internalport 2 (1–3, 0)←→VC-4 (No.1)

Pass-throughservice: ATMinternal port 1 (1–3, 0)←→ATMinternal port 2 (1–5, 0)←→VC-4(No.1)10 Mbit/s service 2:

ATM external port 2(2, 0)←→ATMinternal port 1 (2, 0)←→VC-4 (No.1)

10 Mbit/s service 3:ATM external port 3(3, 0)←→ATMinternal port 1 (3, 0)←→VC-4 (No.1)

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RouteLocation

NE 1 NE 2 NE 3 NE 4

NE1 to NE3


- 20 Mbit/sservice 1: ATMexternal port 1(4, 0)←→ATM internalport 2 (4, 0)←→VC-4 (No.1)

Pass-throughservice: ATMinternal port 1 (4–5, 0)←→ATMinternal port 2 (4–5, 0)←→VC-4(No.1)

- 20 Mbit/sservice 2: ATMexternal port 2(5, 0)←→ATM internalport 2 (5, 0)←→VC-4 (No.1)

NE 1 toNE 4


- - 20 Mbit/s service1: PL3 interface← →ATMinternal port 3 (6,0)←→ ATMinternal port 2 (6,0)←→VC-4 (No.1)

30 Mbit/s service1: ATM externalport 1 (7, 0)←→ATM internal port2 (7, 0)←→VC-4(No.1)

NOTE

l The external ATM port is also the external optical interface where ATM services are accessed. Theinternal ATM port is the logical port VCTRUNK, which is the port used to connect the ATM processingmodule and the SDH cross-connect module.

l The VP connection is used. The numbers in the bracket are values of the VPI and VCI. For example,(1, 0) indicates that the VPI value is 1 and the VCI value is 0.

6.7 Planning DDN ServicesThe OptiX 155/622H supports multiple types of DDN services. When planning the DDNservices, follow the basic principles.

6.7.1 Capability of Supporting DDN ServicesThe OptiX 155/622H supports the DDN services, such as the N x 64 kbit/s service and FramedE1 service.

6.7.2 Planning Principles



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When planning DDN services, choose the proper boards according to the planned types of DDNservices.

6.7.3 Planning N x 64 kbit/s Services (Point-to-Point Transmission)The method of planning the point-to-point transmission of N x 64 kbit/s services is defined.

6.7.4 Planning Framed E1 Services (Point-to-Point Transmission)The method of planning the point-to-point transmission of Framed E1 services is defined.

6.7.5 Planning N x 64 kbit/s and Framed E1 Services (Hybrid Transmission)The method of planning the hybrid transmission of N x 64 kbit/s and Framed E1 services isdefined.

6.7.6 Planning Converged Framed E1 ServicesThe method of planning the converged Framed E1 is defined.

6.7.7 Planning Converged N x 64 kbit/s ServicesThe method of planning the converged N x 64 kbit/s services is defined.

6.7.1 Capability of Supporting DDN ServicesThe OptiX 155/622H supports the DDN services, such as the N x 64 kbit/s service and FramedE1 service.

The OptiX 155/622H uses the N64 and N64Q board to access and process DDN services. Table6-17 lists the features of the N64 and N64Q.

Table 6-17 Features of the N64 and N64Q

BoardFeature

N64 N64Q FP2D

Processingcapability

Process 2 x N x 64kbit/s andFramed E1

Process 4 x N x 64kbit/s

Process 16 x FramedE1

Interfacetype

N x 64 kbit/s interface: V.35, V.24, X.21, RS-449,EIA-530

N x 64 kbit/s interface:V.35, V.24, X.21,RS-449, EIA-530

Framed E1 interface

Loopback Inloop and outloop for allports.

Inloop and outloop forall ports.

Inloop and outloop forall ports.

The OptiX 155/622H supports the following networking application schemes for DDN services:

l Point-to-point transmission of N x 64 kbit/s services

l Point-to-point transmission of Framed E1 services

l Hybrid transmission of N x 64 kbit/s and Framed E1 services

l Convergence of Framed E1 services

l Convergence of N x 64 kbit/s services

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6.7.2 Planning PrinciplesWhen planning DDN services, choose the proper boards according to the planned types of DDNservices.

6.7.3 Planning N x 64 kbit/s Services (Point-to-Point Transmission)The method of planning the point-to-point transmission of N x 64 kbit/s services is defined.

Service RequirementOne 4 x 64 kbit/s service is to be transmitted between the headquarters of company A, at NE 1,and a branch, at NE 2. The V.35 protocol is applied as the interface protocol.

Networking ApplicationThe OptiX 155/622H supports the point-to-point transmission of N x 64 kbit/s services. Figure6-13 shows the networking diagram.

Figure 6-13 Networking diagram for the N x 64 kbit/s service (point-to-point transmission)

NE 1 NE 2 Branch of company A


4 x 64 kbit/s 4 x 64 kbit/s

Application SchemeThe N64Q board first accesses the 4 x 64 kbit/s service and then the DX1 maps the service intoa VC-12, which is transmitted by a line board.

The protection in the SDH network is used to protect the 4 x 64 kbit/s service.

Hardware ConfigurationConfigure one N64Q for NE 1 to access the 4 x 64 kbit/s service from the headquarters ofcompany A.

Configure one N64Q for NE 2 to access the 4 x 64 kbit/s service from the branch of companyA.




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Table 6-18 Routes for the N x 64 kbit/s service (point-to-point transmission)

Route Position NE 1 NE 2

NE 1 to NE 2 4 x 64 kit/s service←→DDNport←→cross-connectboard←→line

4 x 64 kit/s service←→DDNport←→DX1←→cross-connect board←→line

6.7.4 Planning Framed E1 Services (Point-to-Point Transmission)The method of planning the point-to-point transmission of Framed E1 services is defined.

Service RequirementOne Framed E1 service is to be transmitted between the headquarters of company A at one place,and a branch at another place. The V.35 protocol is applied as the interface protocol.

Networking ApplicationThe OptiX 155/622H supports the point-to-point transmission of N x 64 kbit/s services. Figure6-14 shows the networking diagram.

Figure 6-14 Networking diagram for the Framed E1 service (point-to-point transmission)

NE1 NE2Branch of company A


Framed E1 Framed E1

Application SchemeThe FP2D first accesses the Framed E1 service and maps the service into a VC-12, which istransmitted by a line board.

Hardware ConfigurationConfigure one FP2D for NE 1 to access the Framed E1 service from the headquarters of companyA.

Configure one FP2D for NE 2 to access the Framed service from the branch of company A.

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Service Route

Table 6-19 Routes for the Framed E1 service (point-to-point transmission)

RoutePosition

NE 1 NE 2

NE 1 to NE 2 Frame E1 service←→Frame E1 port ofthe FP2D←→cross-connect board←→line

Frame E1 service←→Frame E1port of the FP2D←→cross-connect board←→line

6.7.5 Planning N x 64 kbit/s and Framed E1 Services (HybridTransmission)

The method of planning the hybrid transmission of N x 64 kbit/s and Framed E1 services isdefined.

Service Requirement

One 2 x 64 kbit/s service is to be transmitted between the headquarters of company A, at NE 1and a branch, at NE 2. One Framed E1 service is to be transmitted between the headquarters ofcompany B, at NE 1, and a branch, at NE 2.



Figure 6-15 Networking diagram for the Framed E1 and N x 64 kbit/s services (hybridtransmission)

Enterprise user

Company A2 x 64 kbit/s

Framed E1

2 x 64 kbit/s

OptiX 155/622H

Framed E1

Branch of company B

Branch of company A

Application Scheme

The N64 first accesses the 2 x 64 kbit/s and the Framed E1 services and then maps the servicesinto a VC-12, which is transmitted by a line board.



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Hardware ConfigurationConfigure one N64 for NE 1 to access the 2 x 64 kbit/s service from the headquarters of companyA and the Framed E1 service from the headquarters of company B.

Configure one N64 for NE 2 to access the 2 x 64 kbit/s service from the branch of company Aand the Framed E1 service from the branch of company B.


Table 6-20 Routes for the 4 x 64 kbit/s and the Framed E1 service (hybrid transmission)


Company A: NE 1 to NE 2 2 x 64 kbit/s service←→DDN port of the N64←→cross-connect board←→line

2 x 64 kbit/s service←→DDN port of the N64←→cross-connect board←→line

Company B: NE 1 to NE 2 Framed E1 service←→Framed E1 port of the N64←→crossconnect board←→line

Framed E1 service←→Framed E1 port of the N64←→cross-connect board←→line

6.7.6 Planning Converged Framed E1 ServicesThe method of planning the converged Framed E1 is defined.

Service RequirementThe headquarters of company A is located at NE 1 and two departments are located at NE 2.Each department needs to transmit a Framed E1 service to the headquarters.

Networking ApplicationThe OptiX 155/622H can be used to meet the service requirement. The services from the twodepartments are converged at NE 2 and then transmitted to the headquarters through NE 1.Figure 6-16 shows the networking diagram.

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Figure 6-16 Networking diagram for the converged Framed E1 service

OptiX 155/622H

Framed E1

NE 1 NE 2


Enterprise user

Framed E1

Framed E1



Application SchemeThe N64 board of NE 1 maps the Framed E1 service into a VC-12 and then transmits the VC-12to NE 2 through the SDH network.

The Framed E1 signals are separated from the SDH service at NE 2. The N64 board of NE 2then converts the Framed E1 signals to Framed E1 services, which are finally transmitted to thetwo departments.

Hardware ConfigurationConfigure one N64 for NE 1 to access the Framed E1 service from the headquarters of companyA.

Configure one N64 for NE 2 to access the Framed E1 service from the two departments ofcompany A.


Table 6-21 Routes for the converted Framed E1 services


Headquarters←→department 1 (NE 1to NE 2)

Framed E1 service←→FramedE1 port of the N64←→cross-connect board←→line


Headquarters←→department 2 (NE 1to NE 2)



6.7.7 Planning Converged N x 64 kbit/s ServicesThe method of planning the converged N x 64 kbit/s services is defined.



6-35

Service RequirementThe headquarters of company A is located at NE 1 and two departments are located at NE 2.Each department needs to transmit an 4 x 64 kbit/s service to the headquarters.

Networking ApplicationThe OptiX 155/622H can be used to meet the service requirement. The services from the twodepartments are converged at NE 2 and then transmitted to the headquarters through NE 1.Figure6-17 shows the networking diagram.

Figure 6-17 Networking diagram for the converged N x 64 kbit/s services

OptiX 155/622H


NE1 NE2Department 2 of

company A

Enterprise user

2 x 64 kbit/s4 x 64 kbit/s2 x 64 kbit/s


Application SchemeThe N64Q board of NE 1 maps the 4 x 64 kbit/s service into a VC-12 and then transmits theVC-12 to NE 2 through the SDH network.

The 64 kbit/s signals are separated from the SDH service at NE 2. The N64Q board of NE 2 thenconverts 64 kbit/s signals into two 2 x 64 kbit/s services for the two departments.

Hardware ConfigurationConfigure one N64Q for NE 1 to access the 4 x 64 kbit/s service from the headquarters ofcompany A.

Configure one N64Q for NE 2 to access the 2 x 64 kbit/s service respectively from the twodepartments of company A.


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Table 6-22 Routes for the converged N x 64 kbit/s services


Headquarters←→department 1(NE 1 to NE 2)

4 x 64 kbit/s service←→DDN ofthe N64Q←→cross-connectboard←→line


Headquarters←→department 2(NE 1 to NE 2)





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7 Planning Equipment-Level Protection

For the OptiX 155/622H, the capabilities of supporting the equipment-level protection is defined.

The POI/POU board of the OptiX 155/622H inputs two –48 V/–60 V DC power supplies at thesame time. These two power supplies back up each other. When either of them fails, the othertakes over to ensure normal operation of the equipment.

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16MSTP Optical Transmission SystemPlanning Guidelines 7 Planning Equipment-Level Protection


7-1

8 Planning Clocks

About This Chapter

The OptiX 155/622H supports multiple clock modes, and provides the clock protectionswitching in multiple ways.

8.1 Basic PrinciplesWhen planning the clocks in the network, follow the basic principles.

8.2 Capabilities of Supporting ClocksThe clocks supported by the equipment and the clock protection are defined.

8.3 Planning ExamplesExamples are given to show how to configure clocks in the chain, tangent ring, and intersectingring networks.

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16MSTP Optical Transmission SystemPlanning Guidelines 8 Planning Clocks


8-1

8.1 Basic PrinciplesWhen planning the clocks in the network, follow the basic principles.l At the backbone and convergence layers, use the clock protection and configure the active

and standby reference clock sources to perform the clock switching. At the access layer, innormal situations, configure one reference clock source at the central station. Clocks atother stations follow the clock at the central station.

l Central nodes or nodes with high reliability can provide clock sources.

l When the building integrated timing supply system (BITS) or other external clockequipment with high precision is provided, the NE should use the external timing mode.When no BITS or other external clock equipment with high precision is provided, the NEshould use the line timing mode. The internal timing mode should be used as the lowestclock tracing level.

l Properly plan the clock synchronization network to avoid interlocked clocks and clockloops.

l The shortest route requirements for the line clock tracing are as follows:– In the case of the ring network composed of less than six NEs, the reference clock source

is traced in one direction.– In the case of the ring network composed of six or more than six NEs, the line clock

tracing should follow the shortest route. Thus, in the case of the network composed ofN NEs, N/2 NEs trace the reference clock source in one direction and the other N/2 NEstrace the reference clock source in another direction.

l When multiple clocks form a long chain, clock compensation is required. In this case, thenumber of the G.812 secondary clocks on the transmission link should not exceed 10. Thenumber of the G.813 clocks between two G.812 secondary clocks should not exceed 20.The number of G.813 clocks between the G.811 clock and the G.812 clock should notexceed 20. The number of G.813 clocks should not exceed 60.

8.2 Capabilities of Supporting ClocksThe clocks supported by the equipment and the clock protection are defined.

Basic FunctionsThe clocks of the OptiX 155/622H have the following functions:

l Tracing of the external clock source, line clock source, tributary clock source and internalclock source.

l Non-SSM, standard SSM and extended SSM.

l Clock working modes compliant with ITU-T G.781, such as locked, hold-over, and freerun.

l Output of the line clock, tributary clock and external clock.

l Tributary re-timing.

Clock ProtectionOptiX 155/622H can realize the clock protection switching in the following ways:

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l Do not enable the SSM, and then perform the clock source selection and switchingaccording to the priority list. In this case, do not configure two clocks in two directions onone NE into the priority list. Otherwise, the clocks form a loop.

l Enable the standard SSM mode, and then configure the priority list to ensure that the OptiX155/622H can automatically select the clock source with the highest priority to avoid thelocked loop.

l Enable the extended SSM mode. Use the fifth to eighth bits of the S1 byte to define thequality of the clock source, and use the first to fourth bits of the S1 byte to define the clocksource ID. Thus, the clock loop can be avoided. The principles for setting the clock IDs areas follows:– All external BITSs should be assigned with clock IDs.

– In the case of nodes with external BITSs, the internal clocks of these nodes should beassigned with clock IDs.

– In the case of nodes that access the chain or ring network to another ring network, theclock sources of these nodes should be assigned with clock IDs.

– In the case of nodes that access the chain or ring network to another ring network, whenthe clock tracing level includes the line clock source, the line clock sources accessed toanother ring network should be assigned with clock IDs.

8.3 Planning ExamplesExamples are given to show how to configure clocks in the chain, tangent ring, and intersectingring networks.

Configure Clocks in the Chain NetworkWhen the SSM is enabled, clocks are not interlocked in the chain network. If excessive nodesexist on the chain, add the BITS clock for compensation. See Figure 8-1.

Figure 8-1 Configuration of clocks in the chain network

Node 1 Node 21Node 2 Node N. . . . . .

BITS CompensationBITS

Clock tracing

Configure Clocks in the Tangent Ring NetworkIn the case of the tangent rings, configure a BITS clock at the tangent node as the reference clocksource of the network. See Figure 8-2.

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8-3

Figure 8-2 Configuration of clocks in the tangent rings network

BITS

Clock tracing

Configure Clocks in the Intersecting Ring NetworkIn the case of the intersecting rings, configure an active BITS clock at one of the junction nodesas the reference clock source of the network. Configure a standby BITS clock at another junctionnode to perform the clock active/standby switching. See Figure 8-3.

Figure 8-3 Configuration of clocks in the intersecting rings network

BITS

Standby BITS

Clock tracing

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9 Planning Orderwire and Auxiliary Interfaces

About This Chapter

The planning of orderwire and auxiliary interfaces is defined, and a planning example is given.

9.1 Planning Orderwire Phone InterfacesAs the capabilities of supporting orderwire phone interfaces are defined, plan the orderwirephone interface according to the planning principles.

9.2 Planning Broadcast Data Interfaces S1–S4The broadcast data interfaces are S1–S4.

9.3 Planning External Alarm InterfacesThe planning of the external alarm interfaces is defined.

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16MSTP Optical Transmission SystemPlanning Guidelines 9 Planning Orderwire and Auxiliary Interfaces


9-1

9.1 Planning Orderwire Phone InterfacesAs the capabilities of supporting orderwire phone interfaces are defined, plan the orderwirephone interface according to the planning principles.

9.1.1 Capability of Supporting Orderwire Phone InterfacesThe OptiX 155/622H provides one orderwire phone interface, which uses the RJ-11 connector.

9.1.2 Planning PrinciplesThe principles for planning the orderwire phone interfaces are defined.

9.1.3 Planning ExampleAn example is given to show how to plan the orderwire phone interfaces.

9.1.1 Capability of Supporting Orderwire Phone InterfacesThe OptiX 155/622H provides one orderwire phone interface, which uses the RJ-11 connector.

9.1.2 Planning PrinciplesThe principles for planning the orderwire phone interfaces are defined.

Adhere to the following principles when planning orderwire phone interfaces:

l Make sure that the orderwire signaling is compatible in the entire network.

l Set the orderwire phone number in the format: subnet number (one character) + user number(three characters).

l Make sure that all orderwire phone numbers in the entire network, except the conferencephone number, are unique.

l Make sure that the conference phone numbers in the entire network are the same and thenumber should be larger than the orderwire phone number. It is recommended that theconference phone number be set to 9999.

l Make sure that the dial-up scheme of the orderwire phone of each node is dual-tonemultifrequency.

l Make sure the call waiting time of each node is the same. If less than 30 nodes are presentin the network, set the call waiting time to 5s. If more than 30 nodes are present in thenetwork, set the call waiting time to 9s.

l The orderwire phone number should increase as the node ID increases.

l Consider the possibility of howl in the orderwire loop. Release the loop to solve the problemof howl in the conference call.

9.1.3 Planning ExampleAn example is given to show how to plan the orderwire phone interfaces.

Figure 9-1 shows how to plan the orderwire phone interfaces. Set the orderwire phone numberas four characters, with the last two characters being the same as the node ID. The conferencephone number has four characters and is 9999.



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Figure 9-1 Planning the orderwire phone interfaces

Ring 1

Node 01Phone: 1001Node 02

Phone: 1002Node 04

Phone: 1004

Node 03Phone: 1003

Node 20Phone: 1020

Node 21Phone: 1021

Node 31Phone: 1031

Node 32Phone: 1032

Node 41Phone: 1041

Node 43Phone: 1043

Node 53Phone: 1053

Node 54Phone: 1054

Meeting number:9999

Ring 2

Ring 3 Ring 4

Ring 5

9.2 Planning Broadcast Data Interfaces S1–S4The broadcast data interfaces are S1–S4.

9.2.1 Capability of Supporting Broadcast Data InterfacesThe capability of supporting broadcast data interfaces is defined.

9.2.2 Planning PrinciplesThe principles for planning the broadcast data interfaces are defined.

9.2.3 Planning ExampleAn example is given to show how to plan the data broadcast interface.

9.2.1 Capability of Supporting Broadcast Data InterfacesThe capability of supporting broadcast data interfaces is defined.

The OptiX 155/622H provides four broadcast data interfaces COM2, COM3, COM4 (F3) andF2, which are of the RJ-45 type.

The broadcast data interfaces can be used for universal asynchronous receiver/transmitter(UART) full-duplex communication.

The broadcast data interfaces S1–S4 can be connected to the data terminal equipment. The dataof the data terminal equipment can then be transmitted in the SDH network in a point-to-pointor point-to-multipoint manner. In this way, data can be broadcast to several optical interfaces.

9.2.2 Planning PrinciplesThe principles for planning the broadcast data interfaces are defined.

Adhere to the following principles when planning broadcast data interfaces:



9-3

l The configured broadcast data interfaces should not form a loop.

l Do not configure the unused optical interfaces into the broadcast domain for the broadcastinterface.

l Do not configure the NE where the broadcast interface is not used, into the broadcastdomain.

l Make sure the data flows in the same direction as the clock tracing.

If the equipment at the opposite end uses the RS-232 interface to connect to the broadcast datainterface of the OptiX 155/622H, this equipment should meet the following requirements:

l The interface should be of the RS-232 high level (–9 V).

l Use the software to ensure that only one slave node can transmit data to the master node atany time.

l The cables should not be longer than 15 m.

9.2.3 Planning ExampleAn example is given to show how to plan the data broadcast interface.

Service RequirementAs shown in Figure 9-2, NE 2, NE 3 and NE 4 are equipped with environment monitors, andNE 1 is equipped with a monitoring computer (master node). The monitoring computer needsto communicate with the environment monitor (slave node) of NE 2–NE 4 through the OptiX155/622H. The monitoring computer broadcasts commands to the environment monitors of NE2–NE 4. The environment monitors of NE 2–NE 4 report the collected data to the monitoringcomputer.

Application SchemeFigure 9-2 shows an application scheme.

Figure 9-2 Application of the broadcast data interfaces

Two-fiber bidirectionalMSP ring

NE1

NE2

NE3

NE4

OptiX 155/622H

Data flow

Environment computer

Environment monitor

Environment monitor



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NE 1–NE 4 all use the broadcast data interface S1 to connect to the monitoring computer orenvironment monitor, and use optical interface boards to transmit data to the SDH network.

NE 1 connects the monitoring computer through the S1 interface. NE 1 then transmits the datathat is received by the S1 interface to the west and east NEs. In the converse direction, the westand east NEs transmit data to NE 1, which then transmits the data through the S1 interface. Inthis way, at any time, only one environment monitor can transmit data.

9.3 Planning External Alarm InterfacesThe planning of the external alarm interfaces is defined.

9.3.1 Capability of Supporting External Alarm InterfacesThe capability of supporting external alarm interfaces is defined.

9.3.2 Planning PrinciplesThe principles for planning the external alarm interfaces are defined.

9.3.1 Capability of Supporting External Alarm InterfacesThe capability of supporting external alarm interfaces is defined.

The OptiX 155/622H supports the following external alarm interfaces:

l Four alarm input interfaces, which are used to access the alarm signals from externalequipment.

l Two alarm output interfaces, which are used to output the alarm signals of the local NE.

Use RJ-45 connectors for the external alarm interfaces.

9.3.2 Planning PrinciplesThe principles for planning the external alarm interfaces are defined.

The external alarm input interfaces are used for monitoring the environment of the equipmentroom. The alarm signals are transmitted to the T2000 or a central alarm monitoring equipmentthrough these interfaces.

Generally, the external alarm output interfaces are used to transmit the alarm signals of NEs tothe central alarm monitor equipment.

On the T2000, you can set the alarm trigger mode for each alarm to Enabled or Disabled. Ineither mode, alarms are reported.



9-5

10 Planning Hardware

About This Chapter

The planning for the cabinet, IUs, and interfaces is defined.

10.1 Planning the CabinetThe appearance and specifications of the cabinet, and the principles for planning the cabinet aredefined.

10.2 Planning Slots for BoardsThe slot layout, the mapping relation between the board and slot, and the principles for the slotsare defined.

10.3 Planning Interface BoardsThe interfaces for each board and the principles for planning the interfaces are defined.

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10-1

10.1 Planning the CabinetThe appearance and specifications of the cabinet, and the principles for planning the cabinet aredefined.

10.1.1 CabinetThe OptiX 155/622H can be installed in the ETSI cabinet or 19-inch cabinet.

10.1.2 Planning PrinciplesWhen choosing a cabinet, consider the internal height of the equipment room, height of thecombined cabinet, and subrack quantity.

10.1.1 CabinetThe OptiX 155/622H can be installed in the ETSI cabinet or 19-inch cabinet.

Table 10-1 lists the technical specifications of the ETSI cabinets.

Table 10-1 Technical specifications of the ETSI cabinets

Dimensions (mm) Weight (kg) Allowed ChassisQuantity

600 (W) x 300 (D) x 2000 (H) 55 3

600 (W) x 600 (D) x 2000 (H) 79 3

600 (W) x 300 (D) x 2200 (H) 60 4

600 (W) x 600 (D) x 2200 (H) 84 4

600 (W) x 300 (D) x 2600 (H) 70 4

600 (W) x 600 (D) x 2600 (H) 94 4

NOTEAll dimensions are in mm. The following figure shows the dimensions of the width, the depth and theheight.

W

H

D

Table 10-2 lists the technical specifications of the 19-inch cabinet.

Table 10-2 Technical specifications of the 19-inch cabinet


600 (W) x 300 (D) x 2000 (H) 90 3



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600 (W) x 600 (D) x 2200 (H) 110 4

10.1.2 Planning PrinciplesWhen choosing a cabinet, consider the internal height of the equipment room, height of thecombined cabinet, and subrack quantity.

Consider the following factors when you choose a cabinet for the OptiX 155/622H subrack:

l Internal height of the equipment room

l Height of the combined cabinet

10.2 Planning Slots for BoardsThe slot layout, the mapping relation between the board and slot, and the principles for the slotsare defined.

10.2.1 Slot AllocationThe OptiX 155/622H has three layers and provides seven slots.

10.2.2 Planning PrinciplesThere is no special requirement.

10.2.1 Slot AllocationThe OptiX 155/622H has three layers and provides seven slots.

Figure 10-1 shows the slot layout of the OptiX 155/622H.

Figure 10-1 Slot layout of the OptiX 155/622H

IU1

FAN POI/POU

IU2IU3

IU4

SCB

622 Mbit/s

IU5 IU6

The slot layout of the OptiX 155/622H is described as follows:l Slots for service processing boards: IU1–IU6.

NOTESlots IU5 and IU6 inFigure 10-1 are logical slots, and they are actually integrated on the SCB board.

l Slot for the units of SCC, cross-connect, clock, and line: SCB

l Slot for the fan board: FAN

l Slot for the power board: POI/POU



10-3

10.2.2 Planning PrinciplesThere is no special requirement.

10.3 Planning Interface BoardsThe interfaces for each board and the principles for planning the interfaces are defined.

10.3.1 Planning Interface BoardsInterfaces supported by the equipment are interfaces of the SDH processing boards, PDHprocessing boards, and data processing boards.

10.3.1 Planning Interface BoardsInterfaces supported by the equipment are interfaces of the SDH processing boards, PDHprocessing boards, and data processing boards.

Interfaces of SDH Processing Boards

Table 10-3 lists the interfaces of the SDH processing boards of the OptiX 155/622H.

Table 10-3 Interfaces of SDH processing boards

BoardName

Description Interface Type ConnectorType

OI4 1 x STM-4 optical interfaceboard

Ie-4, S-4.1, L-4.1, L-4.2 SC

OI4D 2 x STM-4 optical interfaceboard

Ie-4, S-4.1, L-4.1, L-4.2 SC

OI2S 1 x STM-1 optical interfaceboard

Ie-1, S-1.1, L-1.1, L-1.2 SC

OI2D 2 x STM-1 optical interfaceboard

Ie-1, S-1.1, L-1.1, L-1.2 SC

SL1Q 4 x STM-1 optical interfaceboard

Ie-1, S-1.1, L-1.1, L-1.2 SC

SL1O 8 x STM-1 optical interfaceboard

Ie-1, S-1.1, L-1.2 SC

SB2L 1 x STM-1 single-fiberbidirectional optical interfaceboard (only one left opticalinterface available)

Ie-1, S-1.1, L-1.2 SC

SB2R 1 x STM-1 single-fiberbidirectional optical interfaceboard (only one right opticalinterface available)

Ie-1, S-1.1, L-1.2 SC



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BoardName


SB2D 2 x STM-1 single fiberbidirectional optical interfaceboard

Ie-1, S-1.1, L-1.2 SC

SLE 1 x STM-1 electrical interfaceboard

75-ohm STM-1 electricalinterface

SMB

SDE 2 x STM-1 electrical interfaceboard

75-ohm STM-1 electricalinterface

SMB

Interfaces of PDH Processing BoardsTable 10-4 lists the interfaces of the PDH processing boards of the OptiX 155/622H.

Table 10-4 Interfaces of PDH processing boards

Board Name Description Interface Type ConnectorType

SP1S 4 x E1 electrical interfaceboard

75-ohm/120-ohm E1electrical interface

DB78

SP1D 8 x E1 electrical interfaceboard


DB78

SP2D 16 x E1 electrical interfaceboard


DB78

PD2S 16 x E1 electrical interfaceboard


DB78

PD2D 32 x E1 electrical interfaceboard


DB78

PD2T 48 x E1 electrical interfaceboard


DB78

SM1S 4 x E1/T1 electrical interfaceboard

75-ohm/120-ohm E1electrical interface100-ohm T1 electricalinterface

DB78

SM1D 8 x E1/T1 electrical interfaceboard

75-ohm/120-ohmE1electrical interface100-ohm T1 electricalinterface

DB78



10-5

Board Name Description Interface Type ConnectorType

PM2S 16 x E1/T1 electricalinterface board

75-ohm/120-ohme1electrical interface100-ohm T1 electricalinterface

DB78

PM2D 32 x E1/T1 electricalinterface boar


DB78

PM2T 48 x E1/T1 electricalinterface board


DB78

PE3S 1 x E3 electrical interfaceboard

75-ohm E3 electricalinterface

SMB

PE3D 2 x E3 electrical interfaceboard


SMB

PE3T 3 x E3 electrical interfaceboard


SMB

PT3S 1 x T3 electrical interfaceboard

75-ohm T3 electricalinterface

SMB

PT3D 2 x T3 electrical interfaceboard


SMB

PT3T 3 x T3 electrical interfaceboard


SMB

Interfaces of Data Service Processing Boards

Table 10-5 lists the Ethernet service processing boards of the OptiX 155/622H.

Table 10-5 Interfaces of data service processing boards

BoardName


ET 8-port Ethernet service interfaceboard

10/100BASE-T(X) RJ-45

ET1O 8-port Ethernet service electricalinterface board

10/100BASE-T(X) RJ-45

ET1D 2-port Ethernet service electricalinterface board

10/100BASE-T(X) RJ-45



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BoardName


EF1 6-port Ethernet service interfaceboard

10/100BASE-T(X)100BASE-FX

RJ-45, LC

ELT2 2-port Fast Ethernet opticalinterface board

100BASE-FX LC

EFS 4-port Ethernet service electricalinterface board

10/100BASE-T(X) RJ-45

EFT 4-port Ethernet service interfaceboard

10/100BASE-T(X) RJ-45

EGS 1-port Gigabit Ethernet opticalinterface board

1000BASE-SX/LX/ZX

LC

EFSC 12-port Ethernet service interfaceboard

10/100BASE-T(X) RJ-45

EGT 1-port Gigabit Ethernet transparenttransmission board

1000BASE-SX/LX/ZX

LC

N64 N x 64 kbit/s interface board V.35, X.21, RS-449,V.24, EIA-530,Framed E1

DB78

N64Q 4 x N x 64 kbit/s interface board V.35, X.21, RS-449,V.24, EIA-530

DB78

FP2D 16 x Framed E1 electrical interfaceboard

75-ohm/120-ohmelectrical interface

DB78

AIUD 2 x ATM optical interface board S-4.1, L-4.1, L-4.2,Ve-4.2

LC

AIUQ 4 x ATM optical interface board S-4.1, L-4.1, L-4.2,Ve-4.2

LC

Interfaces of Other BoardsTable 10-6 lists the interfaces of other boards.

Table 10-6 Interfaces of other boards

BoardName

Description Interface Type Connector Type

SCB System control board 16 electrical interfaces DB78

Two optical interfaces SC



10-7

BoardName

Description Interface Type Connector Type

NM interface, transparentdata interface, externalclock interface

RJ-45

Orderwire interface RJ-11

UPM Dedicated powersystem

- -

Built-in 220V chassis

built-in chassis - -



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11 Planning Environment for Operation

About This Chapter

The power consumption of the equipment, environment for operation, and planning principlesare defined.

11.1 Power Supply Specifications and Power Consumption of BoardsThe power consumption of the equipment should be considered when planning the operatingenvironment for the equipment.

11.2 Environment for OperationThe OptiX 155/622H requires a certain environment for operation.

11.3 Planning PrinciplesWhen planning the environment for the equipment, follow the basic principles.

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11-1

11.1 Power Supply Specifications and Power Consumptionof Boards

The power consumption of the equipment should be considered when planning the operatingenvironment for the equipment.

Table 11-1 lists the power supply specifications of the OptiX 155/622H.

Table 11-1 Power supply specifications

Parameter Specification

Power supply mode DC power supply

Nominal voltage –48 V, –60 V, or +24 V

Voltage range –38.4 V to –57.6 V, –48 V to –72 V, or +19.2 V to 28.8 V

Max. power consumption 100 W

NOTE

If the power consumption is higher than 100 W, the OptiX 155/622H works abnormally.

Table 11-2 lists the power consumption and weight of the boards of the OptiX 155/622H.

Table 11-2 Power consumption and weight of the boards of the OptiX 155/622H.

Board Power Consumption(W)

Weight (kg)

EF1 25 0.68

EFS 30.9 0.26

EFSC 22 0.6

EFT 8 0.26

EGS 17 0.3

ELT2 9 0.22

EGT 18.3 0.2

ET1 26.1 0.74

ET1D 15 0.26

ET1O 26.1 0.74

FP2D 8.4 0.25

AIUD 23W 1.5



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Board Power Consumption(W)

Weight (kg)

AIUQ 25W 1.5

N64 4 0.22

N64Q 5 0.20

OI2D 11 0.22

OI2S 10 0.21

OI4 11.5 0.2

FP2D 8.4 0.25

PD2D 14.5 0.66

PD2S 11 0.54

PD2T 18.5 0.77

PL3 8 0.28

PM2D 10 0.64

PM2S 9 0.52

PM2T 11 0.74

SB2D 11 0.2

SB2L 10 0.2

SB2R 10 0.2

SCB 24 0.8

SDE 10 0.22

SL1O 14 0.66

SL1Q 9 0.6

SLE 9 0.21

SM1D 4.5 0.22

SM1S 4 0.2

SP1D 5 0.24

SP1S 3.95 0.21

SP2D 5.4 0.25



11-3

11.2 Environment for OperationThe OptiX 155/622H requires a certain environment for operation.

Climate

Table 11-3 and Table 11-4 list the climate requirements for operation of the OptiX 155/622H.

Table 11-3 Requirements for temperature and humidity

Temperature Relative Humidity

Long-termoperation

Short-term operation Long-term operation Short-term operation

0°C to 45°C –5°C to 50°C 10% to 90% 5% to 95%

NOTEThe temperature and humidity values are tested in a place that is 1.5 m above the floor and 0.4 m in frontof the equipment.

Short-term operation means that the consecutive working time of the equipment does not exceed 96 hours,and the accumulated working time every year does not exceed 15 days.

Table 11-4 Other climatic requirements

Item Range

Altitude ≤ 4000 m

Air pressure 60 kPa to 106 kPa

Temperature change rate ≤ 0.5°C/min

Air flowing speed ≤ 1 m/s

Biological Environment

Avoid the growth of microbes, such as eumycete and mycete.

Take anti-rodent measures.

Air Cleanness

The air must be free from explosive, electric-conductive, magnetic-conductive or corrosive dust.

The density of the mechanical active substances complies with the requirements defined byTable 11-5.



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Table 11-5 Requirements for the density of the mechanical active substance

Mechanical Active Substance Content

Dust particle ≤ 3x105 particles/m3

Suspending dust ≤ 0.4 mg/m³

Precipitable dust ≤ 15 mg/m²·h

Gravel ≤ 100 mg/m³

The density of the chemical active substances complies with the requirements defined by Table11-6.

Table 11-6 Density requirements for chemical active substances during operation

Chemical Active Substance Content

SO2 ≤ 0.20 mg/m³

H2S ≤ 0.006 mg/m³

NH3 ≤ 0.05 mg/m³

Cl2 ≤ 0.01 mg/m³

HCl ≤ 0.10 mg/m³

HF ≤ 0.01 mg/m³

O3 ≤ 0.005 mg/m³

CO ≤ 5.0 mg/m³

Mechanical StressTable 11-7 lists the requirements of mechanical stress for operation.

Table 11-7 Requirements for mechanical stress during operation

Item Sub-Item Range

Sinusoidal vibration Velocity ≤ 5 mm/s -

Acceleration - ≤ 2 mm/s²

Frequency range 5 Hz to 62 Hz 62 Hz to 200 Hz

Impact Impact responsespectrum II

Half-sin wave, 30 m/s2, 11 ms, three timeson each surface

Static load 0 kPa



11-5

Item Sub-Item Range

NOTEImpact response spectrum is the maximum acceleration response curve generated by an equipment that isspurred by a specified impact. Static load is the pressure from the top, which the equipment with packagecan endure when the equipment is placed in a specific manner.

11.3 Planning PrinciplesWhen planning the environment for the equipment, follow the basic principles.

Consider the following items when planning the operating environment for the OptiX 155/622H.

l Location of the equipment room

l Architecture of the equipment room

l Architecture of the equipment room

l Cleanness of the equipment room

l Humidity and temperature requirements for the equipment

l ESD protection

l Lightning protection grounding

l Power supply of the equipment

l Fire-fighting measures



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12 Overview of Network Optimization

About This Chapter

As the scale of a network increases, more services are provides and the network becomes morecomplex. As a result, the network should be optimized according to specific principles.

12.1 Purpose of Network OptimizationThe network optimization can improve the usage of network resources, safety, and stability ofthe network, and increase the efficiency in network maintenance.

12.2 Principles for Optimizing the NetworkWhen optimizing the network, follow the basic principles.

12.3 Parameters Related to Network OptimizationParameters related to network optimization have direct impacts on the network optimization.

12.4 Process for Optimizing a NetworkThe process for optimizing a network includes preparing the optimization, evaluating thenetwork, providing and analyzing network optimization schemes, and performing the networkoptimization.

12.5 Principles for Monitoring the NetworkFollow certain principles when monitoring the network.

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12.1 Purpose of Network OptimizationThe network optimization can improve the usage of network resources, safety, and stability ofthe network, and increase the efficiency in network maintenance.

As the scale of a network increases, more services are provided and the network becomes morecomplex. As a result, the engineering construction and network maintenance become moredifficult. In addition, more faults occur in the network. Hence, it is necessary to optimize sucha network. The purposes for optimizing the network are as follows:

l Improve the usage of network resources.

l Improve the safety and stability of the network.

l Increase the efficiency in network maintenance.

12.2 Principles for Optimizing the NetworkWhen optimizing the network, follow the basic principles.

Adhere to the following principles when optimizing the network:

l Fully use the investment in network to be optimized.

l Analyze the existing network and conclude the service trend.

l Apply a measurable optimization scheme.

l Apply proper measures to ensure that the network optimization can be performed.

12.3 Parameters Related to Network OptimizationParameters related to network optimization have direct impacts on the network optimization.

Parameters related to network optimization are listed as follows:

l Network capacity

l NE configuration

l T2000 configuration

12.4 Process for Optimizing a NetworkThe process for optimizing a network includes preparing the optimization, evaluating thenetwork, providing and analyzing network optimization schemes, and performing the networkoptimization.

The network optimization includes the following procedures:

l Preparing for the optimization

l Evaluating the network

l Providing and analyzing network optimization schemes

l Perform the network optimization



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Prepare for the OptimizationMake the following preparations before optimizing the network:

l Confirm the requirements for network optimization.

l Plan the scope, objects and date for network optimization.

l Determine the personnel responsible for optimizing the network.

l Collect documents about the network and analyze the network running condition.

l Prepare the tools for network optimization.

Evaluate the NetworkThe following operations should be performed to evaluate the network.

l Determine the purposes, objects, scope and date for network optimization.

l Determine the methods for evaluating the network optimization schemes.

l Collect in-field data and perform tests on site.

l Analyze the data, give marks and find the problem.

l Issue evaluation results and give optimization suggestions.

Provide and Analyze Network Optimization SchemesThe following operations should be done to provide and analyze network optimization schemes.

l Determine the nodes and objects for optimization.

l Provide schemes for optimizing different items as follows:– Operation environment

– Networking − Service optimization

– Service optimization scheme

– Network self-healing and protection

– Network clock

– Optical network spare parts

– Network security management

– Network ECC communication

– Other network optimization suggestions

l Provide an overall analysis of the network optimization and an overall network optimizationscheme.

l Provide verifications and tests for the overall scheme.

l Conclude and determine a network optimization scheme.

l Purchase devices, materials and related service items.

l Confirm the delivered devices and materials.

Perform the Network OptimizationThe following operations should be done to perform the network optimization.

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12-3

l Determine a scheme for performing the network optimization.

l Determine the personnel responsible for performing the optimization, and the tools,vehicles, spare parts and emergency schemes.

l Perform the network optimization.

l Check and verify the network optimization.

l Make the network optimization process and results known to the people concerned.

l Conclude the optimization for each item and trace the optimization.

12.5 Principles for Monitoring the NetworkFollow certain principles when monitoring the network.

The principles are listed as follows:

l Monitor the network in a centralized manner on the T2000.

l Clear alarms in a timely manner.



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A Glossary

A

ADM Add/Drop Multiplexing. Network elements that provide access to all, orsome subset of the constituent signals contained within an STM-Nsignal. The constituent signals are added to (inserted), and/or droppedfrom (extracted) the STM-N signal as it passed through the ADM.

APS Automatic Protection Switching. SDH switching mechanism that routestraffic from working paths to protect paths in case a line board failureor fiber cut occurs.

Asynchronous Protocol operation in which more than one exchange between a givenpair of entities can be handled simultaneously.

ATM Asynchronous Transfer Mode. A transfer mode in which the informationis organized into cells; it is asynchronous in the sense that the recurrenceof cells containing information from an individual user is not necessarilyperiodic. It is a protocol within the OSI layer 1. An ATM cell consistsof a 5 octet header followed by 48 octets of data.

B

BITS Building Integrated Timing Supply. A building timing supply thatminimizes the number of synchronization links entering an office.Sometimes referred to as a synchronization supply unit.

Broadcast The act of sending a frame addressed to all stations on the network

C

CAR Committed Access Rate. The CAR limits the input or outputtransmission rate on an interface.

CBR Constant Bit Rate. The Constant Bit Rate service category is used byconnections that request a static amount of bandwidth that iscontinuously available during the connection lifetime. This amount ofbandwidth is characterized by a peak cell Rate (PCR) value.

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A-1

E

ECC Embedded Control Channel. An ECC provides a logical operationschannel between SDH NEs, utilizing a data communications channel(DCC) as its physical layer.

EPL Ethernet Private Line. An EPL service is a point-to-pointinterconnection between two UNIs without SDH bandwidth sharing.Transport bandwidth is never shared between different customers.

EPLAN Ethernet Private LAN. A EPLAN service is both a LAN service and aprivate service. Transport bandwidth is never shared between differentcustomers.

EVPL Ethernet Virtual Private Line. A EVPL service is a service that is botha line service and a virtual private service.

EVPLAN Ethernet Virtual Private Local Area Network. A EVPLAN service is aservice that is both a LAN service and a virtual private service.

G

Gateway NE Gateway Network Element. Gateway NE provides the communicationsbetween NEs and network management system.

I

IP address A 32-bit identifier that is unique to each network device.

IP over DCC The IP Over DCC follows TCP/IP telecommunications standards andcontrols the remote NEs through the Internet. The IP Over DCC meansthat the IP over DCC uses overhead DCC byte (the default is D1-D3)for communication.

L

LCAS Link Capacity Adjustment Scheme. A solution features flexiblebandwidth and dynamic adjustment. In addition, it provides a failuretolerance mechanism, which enhances the viability of virtualconcatenations and enables the dynamic adjustment to bandwidth(nonservice affecting).

M

MSP Multiplex Section Protection. The MSP function provides capability forswitching a signal from a working to a protection section.

A Glossary


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MSTP Multi-service transmission platform. It is based on the SDH platform,capable of accessing, processing and transmitting TDM services, ATMservices, and Ethernet services, and providing unified management ofthese services.

N

NE Network Element. A stand-alone physical entity that supports at leastnetwork element functions and may also support operations systemfunction or mediation functions. It contains managed objects, a messagecommunication function and a management applications function.

O

Orderwire It establishes the voice communication among the operators andmaintenance engineers work in each working station.

Q

QoS Quality of Service. Information sent in the forward direction to indicatethe Quality of Service class requested by the user for a connection. QOSclasses are defined to allow a network to optimize resources insupporting various service classes.

S Synchronous Digital Hierarchy. A hierarchical set of digital transportstructures, standardized for the transport of suitably adapted payloadsover physical transmission networks.

SNCP Subnet Connection Protection. A working subnetwork connection isreplaced by a protection subnetwork connection if the workingsubnetwork connection fails, or if its performance falls below a requiredlevel.

SSM Synchronization Status Message. ITU-T defines S1 byte to transmit thenetwork synchronization status information. It uses the lower four bitsof the multiplex section overhead S1 byte to indicate 16 types ofsynchronization quality grades.

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A-3

B Acronyms and Abbreviations

A

APS Automatic Protection Switching

ATM Asynchronous Transfer Mode

C

CAR Committed Access Rate

CBR Constant Bit Rate

D

DCC Data Communication Channels

DCN Data Communication Network

DNI Dual Node Interconnection

DSLAM Digital Subscriber Line Access Multiplexer

E

EPL Ethernet Private Line

EVPL Ethernet Virtual Private Line

EPLAN Ethernet Private LAN

EVPLAN Ethernet Virtual Private LAN

G

GFP Generic Framing Procedure

I

IP Intelligent Peripheral; Internet Protocol

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B-1

ITU-T International Telecommunication Union - TelecommunicationStandardization Sector

L

LAN Local Area Network

LC Lucent Connector

LCAS Link Capacity Adjustment Scheme

M

MPLS Multiprotocol Label Switching

MSP Multiplex Section Protection

N

nrt-VBR non-real time Variable Bit Rate

NSAP Network Service Access Point

O

OSI open systems interconnection

P

PCR Peak Cell Rate

PDH Plesiochronous Digital Hierarchy

R

rt-VBR real time Variable Bit Rate

S

SDH Synchronous Digital Hierarchy

SNCP Sub-Network Connection Protection

SSM Synchronization Status Message

STM-1 SDH Transport Module -1

STM-4 SDH Transport Module -4

B Acronyms and Abbreviations


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T

TCP Transport Control Protocol

U

UBR Unspecified Bit Rate

V

VLAN Virtual Local Area Network

VP Virtual Path

VPN Virtual Private Network

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B-3

Index

Symbols/Numerics1+1 linear MSP plan

planning principle, 4-6supporting capability, 4-5

1:N linear MSP planplanning principle, 4-7supporting capability, 4-6

AATM service

multicast, 6-24planning principle, 6-22statistically multiplexed, 6-26supporting capability, 6-22transparently transmitted, 6-23

Cclock plan

basic principle, 8-2planning example, 8-3supporting capability, 8-2

DDCN network plan

basic principle, 5-2DCN schemes supported by the equipment, 5-2planning NE ID and IP, 5-3planning the HWECC, 5-3planning the IP over DCC, 5-5planning the OSI over DCC, 5-6

DDN serviceconverged Framed E1, 6-34converged N x 64 kbit/s, 6-36Framed E1: point-to-point transmission, 6-32N x 64 kbit/s and Framed E1 services: hybridtransmission, 6-33N x 64 kbit/s: point-to-point transmission, 6-31planning principle, 6-31supporting capability, 6-30

DNI planplanning principle, 4-7

supporting capability, 4-7

EEthernet service

EPL: port-shared, 6-13EPL: transparently transmitted, 6-11EPLAN, 6-17EVPL: transit scheme, 6-16EVPL: VCTRUNK-shared, 6-15EVPLAN, 6-19planning principle, 6-10supporting capability, 6-7

Ffiber-shared virtual trail plan


Hhardware plan

planning interface board, 10-4planning slot for board, 10-3planning the cabinet, 10-2

Iinterconnection with other OptiX series product

interconnection capability, 2-3interconnection with the Metro series product, 2-4interconnection with the OSN series product, 2-5

Mmaximum service access capacity

access capacity of slot, 6-3cross-connect capacity, 6-3service access capacity, 6-2

MSP ring planplanning principle, 4-4supporting capability, 4-4

OptiX 155/622H(Metro1000) STM-1/STM-4/STM-16MSTP Optical Transmission SystemPlanning Guidelines Index


i-1

Nnetwork layer planning

basic principle, 2-2interconnection with other OptiX equipment, 2-3management capabilities of the NM system, 2-5

network optimizationparameter, 12-2principle for monitoring, 12-4principle for optimizing the network, 12-2process, 12-2purpose, 12-2

network protection plan1+1 linear MSP, 4-51:N linear MSP, 4-6basic principle, 4-3DNI, 4-7fiber-shared virtual trail protection, 4-7MSP ring, 4-4network protection schemes supported by theequipment, 4-3SNCP ring, 4-4VP-ring and VC-ring protection schemes for theATM service, 4-8

networking planbasic principle, 3-2NE type supported by the equipment, 3-2networking mode supported by the equipment, 3-4

OOperation environment plan

environment for operation, 11-4planning principle, 11-6power supply specifications and power consumptionof board, 11-2

orderwire planplanning broadcast data interfaces S1–S4, 9-3planning external alarm interface, 9-5planning orderwire phone interface, 9-2

PPDH service


planning broadcast data interfaceplanning example, 9-4planning principle, 9-3supporting capability, 9-3

planning external alarm interfaceplanning principle, 9-5supporting capability, 9-5

planning HWECCplanning principle, 5-4supporting capability, 5-4

planning orderwire phone interface

planning example, 9-2planning principle, 9-2supporting capability, 9-2

planning slotplanning principle, 10-4slot allocation, 10-3

planning the cabinetcabinet specification, 10-2planning principle, 10-3

planning the IP over DCCplanning principle, 5-5supporting capability, 5-5

planning the OSI over DCCplanning case, 5-8planning principle, 5-7supporting capability, 5-6

SSDH service


service planbasic principle, 6-2maximum service access capacity, 6-2planning ATM service, 6-21planning DDN service, 6-29planning Ethernet service, 6-7planning PDH service, 6-5planning SDH service, 6-4

SNCP ring planplanning principle, 4-5supporting capability, 4-5

VVP-ring and VC-ring plan


Index


Planning Guidelines

i-2 Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd.

Issue 02 (2008-09-10)

Documents

Huawei OptiX Metro 1000 Planning Guidelines(V300R005)