Huawei RTN Microwave DCN Solutions V1.3 (20101115)

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

Security Level: Internal

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www.huawei.com

Transmission Network Marketing Support Department

Huawei RTN microwave DCN Solutions


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Page 3

Brief Introduction to DCN Solutions





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Have You Ever Encountered the Following Problems When You Communicate DCN Information with Customers?

How does the NMS manage the equipment and how does one perform end-to-end DCN planning?

How does one design a DCN when the radio equipment interconnects with a third-party network?





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Page 5

End-to-End DCN Planning

HWECC, TCP/IP, OSI, extended ECC

DCN TCP/IP, OSI

OSS

NMS primary EMS primary

GNE

NMS secondary EMS secondary

NE

Client

Client

Client

Client

●●● ●●

●DCN TCP/IPDCN TCP/IP DCN TCP/IP

NE ● ● ●

HWECC, TCP/IP, OSI, extended ECC

GNE

NENE ● ● ●

● ● ●GNE GNE

•The major work is to plan IP routes.

•OSS/NMS engineers design the external DCN.

External DCNMature technologies, NMS

department being the owner

RTN department being the owner of the internal DCN

Two scenarios:

•A network comprises only Huawei radio equipment.

•A network comprises Huawei radio equipment and third-party equipment.

Internal DCN





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Page 6

•The inband DCN (using IP protocol) is recommended for the OptiX RTN 900 V100R001, and the HWECC protocol is recommended for other versions.

•When DCCs are unavailable, connect NEs through NM cascading ports to achieve transmission of network management information on extended ECCs.

DCN Planning When Huawei Radio Equipment Forms a Network Independently

60 NEs

60 NEs

NMS

Gateway NE

Gateway NE

Extended ECC

Network cable





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Page 7

DCN Planning When Huawei Radio Equipment Forms a Network with Third-Party Equipment

Learn about the type of the third-party equipmentand the type of Huawei radio equipment.

FE channels

The traversed network can provide pass-through channels.

Analyzethe network.

E1 channelsRS-232 /G.703

19.2/9.6 kbit/s channelsOther channels No channel

NM information is directlytransmitted through FE services.

Use the FE-to-E1 protocol converter.

Use the FE-to-RS232/G703 protocol converter.

Use shared DCN channels orsubmit an OR workflow to apply for

the development of a new protocol converter.Whether do both Huawei

radio equipment andthird-party equipment

support the sameDCN protocol?

Y

Share DCN channels to achieve network management.

No solution is available. Communicate with the

customer for provision of channels.

Give priority to protocol converter solutions of Huawei over DCN protocols (IP protocol or OSI protocol).





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Page 8

Detailed Description of DCN Solutions

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Contents

• DCN Concepts and DCN Specifications• Multi-Scenario DCN Solutions• DCN Cases• FAQs





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Page 10

NMS

Router

LAN switch

RTN

What Is DCN?External DCN

Gateway NE

Internal DCN

DCN stands for data communication network.A DCN provides communication channels for managing NEs in a centralized manner to achieve remote management and maintenanceof NEs.

DCNDCN

A DCN between the NMS and NEs is called an external DCN.Generally, the NMS is connected to NEs through an external DCN that comprisesLAN switches, routers, and other data communication devices.

A DCN between NEs is called aninternal DCN.Internal DCNs are classified into inbandDCNs and outband DCNs.

Non-gateway NE





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Page 11

Physical Transmission Channels and Transmission Protocols of an Internal DCN

Transport layer

Network layer

Media access layer

Physical layer

HWECC L4

HWECC NET

HWECC MAC

DCC/LAN

Transport layerNetwork layer

Link layer

Physical layer

UDPIP/ICMP/ARP

Ethernet

LAN

Application layer SNMP

DCC

PPP

TCP

FTP, TL1, TL1 over TelnetQx, MML, Web LCT

Service channels

Overheads

Payload

Outband DCN

Inband DCN

Outband DCNTransmission of NM information does not occupy service bandwidth because DCC bytes in overheads serve as physical channels of a DCN.Inband DCNTransmission of NM information occupies service channels (Ethernet service channels generally). For example, a VLAN of data services is used to transmit NM information. Service channel: NM interface,TDM service,FE/GE and so on.

Physical transmission channels: inband DCN and outband DCN

ECC protocols: HWECC protocol, IP protocol, and OSI protocol

The HWECC solution applies to a network that comprises only Huawei equipment or scenarios wherein Huawei equipment need not communicate OAM information with other-vendor equipment.

The IP solution achieves support of the TCP/IP protocol on DCCs (physical layer)/LAN and applies to scenarios wherein Huawei equipment needs to communicate OAM information with other-vendor equipment.

Note: Application layer protocols are private protocols and cannot achieve communication of OAM information between equipment of different vendors, whereas other-layer protocols are standard protocols and can achieve communication of OAM information between equipment of different vendors.

The OSI solution achieves support of the OSI protocol on DCCs (physical layer) /LAN and applies to scenarios wherein Huawei equipment needs to communicate OAM information with other-vendor equipment.

Note: Application layer protocols are private protocols and cannot achieve communication of OAM information between equipment of different vendors, whereas other-layer protocols are standard protocols and can achieve communication of OAM information between equipment of different vendors.

HWECC protocol (private protocol) IP protocol (standard protocol) OSI protocol (standard protocol)

Transport layer

Network layer

Link layer

Physical layer

IS-IS ISO 10589ES-IS ISO 9542CLNP ISO 8473Ethernet

LAN

Application layer

DCC

LAPD Q.921

TP4 ISO 8073

QX/MML/SWDL





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Page 12

DCN Solutions Provided for Huawei RadioDCN Solution

Physical Channel Applicable Scenario RemarksCategory Protocol Stack

Outband

DCN

HWECC

DCC/ETH

(network port)

This solution is applicable to a network wherein equipment supports the HWECC protocol and DCCs are interconnected. This solution is preferred when a network comprises only Huawei equipment.

This solution is applicable to a network that comprises only Huawei equipment.

IP over DCC This solution is preferred when a network comprises the OptiX transmission equipment and the

third-party equipment that supports the IP over DCC function.

The OptiX transmission equipment forms a network with third-

party equipment. On the network, DCCs are shared but DCC

bandwidths are limited. In addition, the number of permitted

NEs is also limited.

OSI over DCC This solution is preferred when a network comprises the OptiX transmission equipment and the

third-party equipment that supports the OSI over DCC function.

The OptiX transmission equipment forms a network with third-

party equipment. On the network, DCCs are shared but DCC

bandwidths are limited. In addition, the number of permitted

NEs is also limited.Extended ECC HWECC Ethernet No service channels are available between two OptiX NEs but the two OptiX NEs can

interconnect with each other through NM ports.

This solution is applicable to a network that comprises

only Huawei equipment. By default, a maximum of three

NEs can be managed.

Inband DCN

HWECC

Service channels

A very small part of service bandwidth is occupied. This

solution is applicable to a network that comprises only

Huawei equipment.IP protocol This solution is applicable to a network that comprises the OptiX RTN 900 equipment and

other equipment.

A very small part of service bandwidth is occupied, but

networking is flexible.DCC

transparent transmission

NA DCCs This solution is applicable to a network that comprises the OptiX transmission network

and the third-party SDH equipment that does not support the IP over DCC function or OSI

over DCC function.

In actual situations, SDH radio is seldom used. In addition,

the equipment must support the configuration of D byte.

Therefore, this solution is seldom adopted.DCC transparent

transmission through the external clock interface

Not involved External Clock Interface

This solution is applicable to a network that does not support transparent transmission

of DCC bytes carrying NM messages.

huawei MW assing through third-party equipment ， and

transmited by E1

Protocol converter solution Not involved Auxiliary services or service channels

Huawei radio equipment transmits NM information to a third-party NM port by using a protocol converter according to the type of the third-party NM port. Thus, NM information is transparently transmitted.

Due to the characteristics of radio services, Huawei radio equipment is widely used with third-party equipment to form networks. Protocol converters, however, need to be provided (quoted and configured in advance).

•The preceding solutions are provided based on the combination of a DCN protocol (IP protocol, OSI protocol, and HWECC protocol) and transmission channels (DCCs, service channels and in_band DCC).

•In the case of a network comprising only Huawei equipment, the HWECC solution is preferred. In the case of a network comprising Huawei equipment and third-party equipment, the protocol converter solution is preferred and prepare quotations for protocol converters in advance.





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Page 13

DCN Solutions Supported by Each Major Version of Huawei Radio

DCN SolutionPhysical Channel RTN 605 R003 RTN 605 R005 RTN 620 R003 RTN 620 R005 RTN 900 R001 RTN 900 R002

Category Protocol Stack

Outband

DCN

HWECC

DCC/ETH (network port)

Y Y Y Y N Y

IP over DCC

Y Y Y Y N Y

OSI over DCC

N N Y Y N Y

DCC transparent

transmissionDCCs N N Y Y N Y

Extended ECCHWECC Ethernet

Y Y Y Y N Y

Inband DCN

HWECC

Service channelsN N N N N Y

IP protocolN N N N Y Y

DCC transparent transmission through

the external clock interface

Not involved Wayside E1

N N Y Y N Y

Protocol converter solution

Not involved Auxiliary services or service channels

Y Y Y Y Y Y

•For information on whether a board supports a specific solution, see the DCN White Paper or Feature Description.





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Page 14

Protocol Converter IntroductionA protocol converter performs mutual conversion between signal protocols.Application scenario: DCN information needs to be transmitted between two NEs but the two NEs

provide different protocol ports. The protocol converter solution is preferred when Huawei equipment forms a network with third-party equipment.

Protocol Converte

r

FE-to-RS232 converter (RS232_Converter) Type A:

E1_ConverterType B：

E1_C_Converter

FE-to-G703 converter (G703_Converter)Type C:

E1_MUX_Converter

FE-to-E1 protocol converter

Mutual conversion between 1xFE and 1xRS232

Mutual conversion between 1xFE and 1xE1 Mutual conversion between

1xFE+1xE1 and 1xE1

Mutual conversion between 1xFE and 1xQ703

Mutual conversion between 1xFE and multiple E1s

Note：1. E1_Converter can not interconnect

with E1_C_Converter2. E1_MUX_Converter with different

BOM can not interconnect

RS232RS232FEFEE1E1FEFE E1E1 FEFE

FEFE

G703G703FEFE

E1E1

E1E1

E1E1

…………

FEFE





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Protocol Converter Application ScenariosRS232_Converter

G703_Converter

E1_Converter

E1_C_Converter

E1_MUX_Converter

RS232 ChannelRS232 Channel

G703 ChannelG703 Channel

E1ChannelE1Channel

Maximal 8 E1Maximal 8 E1

E1 ChannelE1 Channel E1 ChannelE1 Channel

E1 ChannelE1 ChannelE1 ChannelE1 Channel





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Page 16

DCN Specifications

DCN Channel RS232

(9.6 kbit/s)

RS232

(19.2 kbit/s)

64 kbit/s E1

Maximum Number of non-gateway NEs

3 to 5 5 to 10 30 to 50 500 to 1000

Can a gateway NE be connected to as

many non-gateway NEs as possible?

How many non-gateway NEs can a gateway NE manage?

Capability of a gateway NE

A gateway NE can manage a maximum of 60 non-gateway NEs. If NEs is more than 60, more gateway NE is required

Bandwidth limitIn the case of different DCN channel bandwidths, the maximum number of non-gateway NEs that a gateway NE can manage is as follows:





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Page 17

DCN Specifications

A: management capability coefficient of an NM server

NM Server Management Capability Coefficient

Sun SPARC Enterprise M4000 (4 CPUs)

15

Sun SPARC Enterprise M4000 (2 CPUs)

6

Sun SPARC Enterprise T5220 (8Core)

1

Sun SPARC Enterprise T5220 (4Core)

1.5

Sun Fire E4900 6

B: equivalent coefficient of the radio equipment

NE Equivalent Coefficient

OptiX RTN 605 0.5

OptiX RTN 620 1

OptiX RTN 910 0.5

OptiX RTN 950 1

How is the DCN management capability?

Management capability of an NMS

The management capability of an NMS refers to the maximum number of NEs that the NMS can manage when the preset performance specifications are met.Maximum number of NEs that can be managed = 1000 x A/B

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Contents

• DCN Concepts and DCN Specifications

• Multi-Scenario DCN Solutions

• DCN Cases

• FAQs





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Page 19

DCN Networking Scenarios

1





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Page 20

Complex DCN Networking Scenarios

RTN 620

RTN 950 RTN 950

RTN 605

RTN 910

Third-party NMS

RTN 950

Chain

Star

Ring Supplementary optical network

Point-to-point

BSC/RNC/aGW

E1/STM-1

FE/GE

RTN

OSN/PTN

The 3rd party

RTN 605

NMS

A network may comprise many types of equipment such as OptiX RTN 605/620/910/950, OptiX OSN/PTN equipment,

and third-party equipment.

NM information about Huawei equipment passes through a third-party network or NM information about third-party equipment

A network may involve multiple networking topologies such as point-to-point, chain, star, ring, and supplementary network to an optical network.

passes through a Huawei RTN network.





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Page 21

Complex DCN Networking Scenarios

RTN 620

RTN 950 RTN 950

RTN 605

RTN 910

RTN 950

Chain

Star

Ring Supplementary optical network

Point-to-point

BSC/RNC/aGW

E1/STM-1

FE/GE

RTN

OSN/PTN

The 3rd party

RTN 605

What should we do in such complex DCN networking scenarios?

Third-party NMS

NMS





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Page 22

DCN Solutions

Multiple

types of

equipment

Multiple

topologiesComplex DCN scenarios

Forming a network

with third-party

equipment

Multiple

versions

Solutions to a network comprising only Huawei equipment

Multiple topologiesPoint-to-point, chain, star, ring, …

Multiple types of equipmentRTN, OSN, PTN

Multiple versionsOptiX RTN 600 V100R002/R003/R005, OptiX RTN 900 V100R001/R002, ...

Solutions to a network comprising Huawei radio equipment and third-party radio equipment

Does an OptiX RTN network pass through a third-party network or a third-party network pass through an OptiX RTN network?

Is the point-to-point topology, chain topology, star topology, or ring topology adopted?

• Any network is formed by point-to-point applications.• Two basic application scenarios are as follows: a network comprising only Huawei radio equipment, and a network comprising Huawei radio equipment and third-party radio equipment.





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Page 23

Solutions to a Network Comprising Only Huawei Equipment

2





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BSC/RNC/aGW

NMS

OSN/PTN

OSN/PTN

Optical+radio ring

RTN

N+0/N+1

Quick Reference

DCN solution:

• In most scenarios, the HWECC protocol stack is preferred when a network comprises only Huawei radio equipment.

HWECC protocol stack

E1/STM-1

FE/GEMultiple types of equipment:

RTN 600 V1R2/R3/R5,

RTN 900 V1R1/R2…

Multiple versions:

RTN, OSN, PTN

Point-to-point, chain, star, ring, …

Ne

two

rk com

prisin

g o

nly

Hu

aw

ei ra

dio

eq

uip

me

nt

Multiple topologies:





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Page 25

BSC/RNC/aGW

NMS

OSN/PTN

OSN/PTN

Optical+radioring

RTN

N+0/N+1

Quick Reference

DCN solution:

• Adopt the inband DCN solution （ using IP protocol ） for an OptiX RTN 900 network that comprises the OptiX RTN 900 V100R001.

Inband DCN

Multiple types of equipment:

RTN 600 V1R2/R3/R5,

RTN 900 V1R1/R2…

Multiple versions:

RTN, OSN, PTN


Ne

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E1/STM-1

FE/GE





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Page 26

BSC/RNC/aGW

NMS

OSN/PTN

E1/STM-1

OSN/PTN

Optical+radio ring

RTN

N+0/N+1

FE/GE

Quick Reference

DCN solution:

• Adopt the transparent transmission solution for an OptiX RTN 600/900 network that comprises the OptiX RTN 900 V100R001.

Transparent transmission solution


RTN 600 V1R2/R3/R5,

RTN 900 V1R1/R2…

Multiple versions:

RTN, OSN, PTN


Ne

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Page 27

BSC/RNC/aGW

NMS

OSN/PTN

E1/STM-1

OSN/PTN

Optical+radio ring

RTN

N+0/N+1

FE/GE

Quick Reference

DCN solution:

• When no service interfaces are available between two NEs, use extended ECCs to form an internal DCN.

Extended ECC

Network cable


RTN 600 V1R2/R3/R5,

RTN 900 V1R1/R2…

Multiple versions:

RTN, OSN, PTN


Ne

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Page 28

Solutions to a Network Comprising Huawei Radio Equipment and Third-Party Radio Equipment

3 •DCN Information of a Huawei RTN Network Passing Through a Third-Party Network

•DCN Information of a Third-Party Network Passing Through a Huawei RTN Network

•DCN Solutions to Typical Scenarios





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Page 29

HW NMC

Analysis of the DCN Solutions to the Scenario Wherein DCN Information of a Huawei RTN Network Passes Through a Third-Party Network

Third-party network

RTN RTN

RTN Protocol converter

Router

How to connect HW NMS to third-party equipment and how to connect the third-party network to Huawei RTN network?

The DCN solutions are determined by the type of transmission channels that the third-party network adopts and the DCN solutions that the third-party network supports.

Passing through Passing through Huawei radio equipmentHuawei radio equipment


Passing throughPassing throughthird-party equipmentthird-party equipment

Passing throughPassing throughthird-party equipmentthird-party equipment

DCN solutions to DCN solutions to typical scenariostypical scenarios






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Page 30

HW NMC

DCN Solutions to the Scenario Wherein DCN Information of a Huawei RTN Network Passes Through a Third-Party Network

Third-party network

RTN RTN

RTN Protocol converter

Router

The corresponding protocol converter is required.

No extra device is required but static routes need to be configured.

1 2 3

E1 service channel, G.703-compliant synchronous port, or RS-232

asynchronous port

IP over DCC or OSI over DCC

Inband DCN or FE transparent transmission

One FE port is occupied and no extra device is required.



Passing through Passing through third-party equipmentthird-party equipment








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Page 31

SolutionTransparent Transmission Channel Provided by Third-Party Equipment

Auxiliary DCN Device Remarks Category Serial No.

Protocol converter

1

E1 service channels

E1_ConverterThe service bandwidth of 2 Mbit/s (one E1) is required and therefore third-party equipment needs to provide one E1 port.

2 E1_MUX_ConverterA minimum service bandwidth of 64 kbit/s is required and therefore third-party equipment needs to provide one E1 port.

3 E1_C_ConverterThis converter is applicable to point-to-multipoint scenarios and requires FE pass-through.

4 G.703-compliant port G703_ConveterThird-party equipment needs to provide one G.703-compliant 64 kbit/s codirectional data port.

5 RS-232 data port RS232_Converter Third-party equipment needs to provide one RS-232 data port.　

Sharing DCN channels

6DCN channels by using the IP over DCC

protocolNone

The entire third-party network must adopt the IP over DCC protocol. In addition, routes need to be configured manually (this work is complicated) and data bandwidth needs to be calculated in advance.

7DCN channels by using the OSI over

DCC protocolNone

The entire third-party network must adopt the OSI over DCC protocol. In addition, routes need to be configured manually (this work is complicated) and data bandwidth needs to be calculated in advance.

Ethernet pass-through 8 FE service channelsRouter (required when NM information passes through an IP network)

Routers are used for data transfer between network segments.

DCC transparent transmission through the external clock

interface9 E1/STM-1 service channels None

The E1 provided by the external clock interface carries DCN information (the OptiX RTN 605 does not support this DCN solution) and one E1 of third-party network is occupied.

Summary of the DCN Solutions to the Scenario Wherein DCN Information of a Huawei RTN Network Passes Through a Third-Party Network







HW NMC Third-party network

RTN RTN

RTN

Protocol converter

Router





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Page 32

Third-party NMC

Analysis of the DCN Solutions to the Scenario Wherein DCN Information of a Third-Party Network Passes Through a Huawei RTN Network

Third-party network

RTN RTN

How to connect the third-party NMS to Huawei radio equipment and how to connect Huawei RTN network to the third-party network?

•Huawei radio equipment supports multiple DCN solutions, and therefore can transparently transmit information about third-party network easily.•Multiple DCN solutions are available, similar to the scenario wherein Huawei RTN network passes through third-party network.







Huawei radio





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Page 33

SolutionTransparent Transmission Channel

Provided by Huawei EquipmentAuxiliary DCN Device

Remarks Category Serial No.

Protocol converter

1

E1 service channels

E1_ConverterThe service bandwidth of 2 Mbit/s (one E1) is required and therefore Huawei radio equipment needs to provide one E1 port.

2 E1_MUX_ConverterA minimum service bandwidth of 64 kbit/s is required and therefore Huawei radio equipment needs to provide one E1 port.

3 E1_C_ConverterThis converter is applicable to point-to-multipoint scenarios and is generally used with the preceding two protocol converters.

4 G.703-compliant port G703_ConverterHuawei radio equipment needs to provide one G.703-compliant 64 kbit/s codirectional data port.

5 RS-232 data port RS232_Converter Huawei radio equipment needs to provide one RS-232 19.2 kbit/s data port.

Sharing DCN channels

6 IP over DCC NoneHuawei equipment and third-party equipment need to support the IP protocol and interconnect with each other through management ports. In addition, routes need to be configured manually.

7 OSI over DCC NoneHuawei equipment and third-party equipment need to support the OSI protocol and interconnect with each other through management ports. In addition, routes need to be configured manually.

Ethernet pass-through 8 FE service channels Router (optional)Huawei equipment needs to provide one FE port. In addition, radio service channels of Huawei equipment are occupied and the channel bandwidth is determined by the DCN information of third-party equipment.

Third-party NMC

Third-party network

RTN RTN

Huawei radio

Summary of the DCN Solutions to the Scenario Wherein DCN Information of a Third-Party Network Passes Through a Huawei RTN Network











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Scenario 1: Point to Point (Independent Channels)

E1/64K/RS232 etc

ETH

LAN switch

E1/64k/RS232 etc.

E1/64k/RS232 etc.

E1/64k/RS232 etc.

E1/64k/RS232 etc.

E1_Converter

E1_Converter

E1_Converter

E1_ConverterNM center

Description of the scenario:The protocol converter performs protocol conversion and point-to-point transmission.In this scenario, protocol converters are used in pairs. That is, the number of protocol converters that are used in the NM center is equal to the number of protocol converters that are used at the remote pass-through point.

Advantages and disadvantages of the solution:The advantage of this solution is simplicity. The disadvantage is that, in the case of multiple pass-through points, the number of protocol converters in the NM center is large and many transmission channels are occupied. Therefore, this solution is applicable to the scenario wherein only a few pass-through points exist.

NMS











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Scenario 2: Point to Multipoint (Independent Channels)

Description of the scenario:When multiple pass-through points exist, adopt the C-Converter that supports multiple inputs to reduce the number of converters in the NM center.

Advantages and disadvantages of the solution:One E1_C_Converter is used with multiple E1_Converters. Multiple E1 channels, however, are occupied. Therefore, this solution is applicable to a network wherein E1 channels are sufficient.

ETH

E1/64K/RS232 etc

LAN switch

E1 network

E1 network

E1/64k/RS232

E1/64k/RS232

E1_C_Converter

E1_MUX_Converter

E1_MUX_Converter

E1_ConverterNM center

E1_Converter

NMS











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Page 36

Scenario 3: Cascading Converters (Shared Channels)

Description of the scenario:In practice, as E1 bandwidths are valuable, multiple protocol converters may share one E1; that is, each converter occupies one or several 64 kbit/s timeslots of the E1. As a result, the converters are cascaded.

Advantages and disadvantages of the solution:DCN communication on the entire chain is implemented over one E1, and the E1_MUX_Converters consume fewer E1 bandwidths. This solution is applicable to a complex network. Note: Currently, only the E1 protocol converter supports the cascading.

ETH NM signal

E1 (nx64 kbit/s) NM signal

E1 networkE1 network



LAN switch

E1_C_Converter

E1_MUX_Converter E1_MUX_Converter

E1_MUX_Converter

NM center

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Scenario 4: E1 Convergence (Shared Channels)

Description of the scenario:

In actual operations, multiple E1 channels may be converged into one E1 channel. Specifically, the 64 kbit/s timeslots in use in the E1 channels are converged into one E1 channel. Similar to the NM center, the convergence point converges multiple directions into one direction. In this case, an E1_C_Converter is required.

ETH NMS signal

E1 (nx64 kbit/s) NMS signal


E1 networkE1 networkLAN switch

E1_C_Converter

E1_MUX_Converter

E1_MUX_Converter

NM center


E1_MUX_Converter

E1_C-Converter

E1 networkE1 network E1_MUX_Converter

E1 (nx64 kbit/s)

E1

E1 (nx64 kbit/s)

E1 (nx64 kbit/s)E1 (nx64

kbit/s)

NMS











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Page 38

Scenario 5: Passing Through a Live IP Network

Description of the scenario:An IP network is available between an OptiX RTN NE and the NM center. In this case, no protocol conversion is required. In addition, the live IP network and the OptiX RTN NE are located in different network segments in most cases. Therefore, it is recommended that you configure one router at each pass-through point and in the NM center for data transfer between the network segments.

IP networkIP network

IP networkIP network

LAN switch

Router

Router

Router

NM centerNMS







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Case 1: Sharing E1 ChannelsDescription of the scenario:

See the following figure. There are eight pass-through points and one E1 convergence point. The pass-through points form a tree

topology and each pass-through point needs to transmit NM information to the NM center. The chains on which NM information is

transmitted share one E1. On the chains, each interconnected point occupies one to several 64 kbit/s timeslots in the E1.

ETH

E1

E1

E1_MUX_Converter

E1_C-Converter

E1 network

E1 network


E1 networ

k

E1 networ

k

E1 networ

k

E1 networ

kLAN switch

E1_MUX_Converter

E1_MUX_Converter

NM center

Access point

E1

E1 convergence point

DCN solution:

Configure one converter for each pass-through point, one C-Converter for the E1 convergence point, and one C-Converter and one LAN

switch for the NM center.

NMS

E1

E1E1 network

E1 network


E1-MUX_converter

E1_MUX_converter

E1

E1_MUX_converter

otherother

E1_C_converter

E1

E1_MUX_converter

E1 network

E1 network

E1_MUX_converter

E1汇聚点

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Case 2: Large-Scale Network Comprising Only Huawei Radio Equipment

Description of the scenario:In the case of a large-scale network comprising only Huawei radio equipment, divide the network into subnets and set a gatewayNE for each subnet. Group a maximum of 60 adjacent NEs into one subnet. See the following figure. The network is divided intofive subnets.Note: If the HWECC protocol is adopted, one gateway NE can support a maximum of 100 non-gateway NEs.

DCN solution:

Configure one LAN switch and one E1_C-Converter for the NM center, and one E1_Converter for each subnet.

ETH

E1

60 NEs

60 NEs

50 NEs

LAN switch

NM center

60 NEs

60 NEs

E1 networ

k

E1 networ

kE1_MUX_Converter

E1_MUX_Converter

E1_MUX_Converter

E1_MUX_Converter

E1_C-Converter

NMS

E1_MUX_Converter

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Page 43

FAQs

Q: How to obtain documents about protocol converters? A: Visit The description of Protocol Converter on website 3ms.

Q:Why hybrid network with a third party recommended protocol converter?A: If possible, you can also use the Ethernet transparent transmission DCN information.but in the existing TDM microwave network, Ethernet ports are scarce, generally no Ethernet interface, in most cases need to use protocol converters for conversion information transmit DCN. If you are using the Ethernet network to allow transmission through the DCN information, will be a very good program.

Q: Where are documents about DCN solutions available, except for this slide? A: Download documents about DCN solutions from website 3MS.

Document Name Link

OptiX RTN 600 NMS Transparent Transmission Solutions via Third Party 3MS

Huawei RTN DCN Mix 3rd Party Solution V1.0 (20090828) 3MS

OptiX RTN DCN documentation – Hardware Interfaces and Solutions V1.0 (20090814)

3MS

Microwave DCN White Paper 1.1 3ms

OptiX RTN Pre-Sales and After-Sales DCN Pass-Through Planning Guide V1.02

3ms

Thank Youwww.huawei.com

Documents

Huawei RTN Microwave DCN Solutions V1.3 (20101115)