LightSoft NMS General Description.pdf

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1Net

End to End

Management Suite

General Description

December 2010

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ContentsIntroduction ............................................................................ 1-1

Network Management in a Multitechnology Environment ................................ 1-1Managing a Moving Target with LightSoft ....................................................... 1-3Layered Management Concept ....................................................................... 1-5LightSoft's Clear Advantages ........................................................................ 1-10Intelligent Management for Intelligent Networks ............................................ 1-13

Topology Management .......................................................... 2-1Overview ........................................................................................................ 2-1

LightSoft Main Window ................................................................................... 2-3

Multilayer Topology Views .............................................................................. 2-6Network Elements, Logical Elements, and Managed Elements ...................... 2-8Functional Topology Maps .............................................................................. 2-9Tunnel and Service Management ................................................................. 2-14GCT to EMS ................................................................................................. 2-15Optical Topology Management ..................................................................... 2-16

NE Configuration .................................................................... 3-1

Overview ........................................................................................................ 3-1Creating NEs and PEs .................................................................................... 3-2

NE and Card Configuration ............................................................................. 3-8NE Timing and Synchronization .................................................................... 3-13

Automatic Discovery Functions ..................................................................... 3-16Configuring Gateway Protection ................................................................... 3-16Downloading/Uploading NE Software ........................................................... 3-17Unmanaged Elements .................................................................................. 3-18DCC Cross Connections ............................................................................... 3-20OSPF ........................................................................................................... 3-21IS-IS ............................................................................................................. 3-22BFD Protocol Support in STMS .................................................................... 3-22

Fault Management .................................................................. 4-1

Overview ........................................................................................................ 4-1Active Alarm Notification ................................................................................. 4-2Alarm and Event Filters .................................................................................. 4-7Bidirectional Drill-Down ................................................................................... 4-9CFM Alarms ................................................................................................. 4-10Alarm Correlation .......................................................................................... 4-11Alarm and Event Logs .................................................................................. 4-13Exporting and Forwarding Alarms ................................................................. 4-14Suggested Corrective Actions ....................................................................... 4-17Alarm Management at the EMS Level .......................................................... 4-17


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Trail, Tunnel, and Service Provisioning andManagement ........................................................................... 5-1

Overview ........................................................................................................ 5-1SDH/SONET Trails ......................................................................................... 5-2ASON Network Management ........................................................................ 5-10DWDM Trails ................................................................................................ 5-16Ethernet Services ......................................................................................... 5-25MPLS Tunnels over MoT or MoE .................................................................. 5-45NMS/EMS Synchronization........................................................................... 5-53Importing Traffic Configuration Files ............................................................. 5-54

Inventory and Accounting ..................................................... 6-1

Overview ........................................................................................................ 6-1Inventory Trees and Windows ........................................................................ 6-2Optical Availability Tables ............................................................................... 6-2MPLS Link Availability .................................................................................... 6-4Inventory Reports ........................................................................................... 6-6Printing and Exporting to CSV ........................................................................ 6-7Inventory Management at the EMS Level ....................................................... 6-7

Performance Monitoring ........................................................ 7-1

Overview ........................................................................................................ 7-1

Current Performance Monitoring ..................................................................... 7-2

Historical Performance Monitoring .................................................................. 7-3Performance Monitoring at the EMS Level ...................................................... 7-6

Maintenance ........................................................................... 8-1Overview ........................................................................................................ 8-1Trail Maintenance ........................................................................................... 8-2CFM Maintenance for Ethernet Services ........................................................ 8-3Protection Switching ....................................................................................... 8-5Maintenance at the EMS Level via GCT ......................................................... 8-6Embedded Software Management .................................................................. 8-8

User Management and System Security ............................... 9-1

Overview ........................................................................................................ 9-1User Security .................................................................................................. 9-2Central User Administration ............................................................................ 9-6Customer Network Management .................................................................... 9-7System Security .............................................................................................. 9-9High Availability Clustering Solution .............................................................. 9-12Geographic Redundancy for Disaster Recovery Plans ................................. 9-12Client/Server Architecture ............................................................................. 9-15


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Contents

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Secure UNIX Environment ............................................................................ 9-16

Management Interfaces ........................................................ 10-1Overview ...................................................................................................... 10-1MTNM-Compliant CORBA Interfaces ........................................................... 10-2MTOSI Northbound Interface ........................................................................ 10-3SNMP Gateway ............................................................................................ 10-4SQL Database Access .................................................................................. 10-5XML Interfaces ............................................................................................. 10-6Alarm Interfaces ........................................................................................... 10-6Interfaces and Management Transparency at the EMS Level ....................... 10-6Java RMI ...................................................................................................... 10-7

Element Management Systems ........................................... 11-1Overview ...................................................................................................... 11-1EMS-XDM .................................................................................................... 11-2STMS ........................................................................................................... 11-4EMS-BGF ..................................................................................................... 11-9EMS-ATS ................................................................................................... 11-12Generic EMS .............................................................................................. 11-16

Local Craft Terminals ........................................................... 12-1

Overview ...................................................................................................... 12-1

LCT-XDM ..................................................................................................... 12-2LCT-BGF ...................................................................................................... 12-3LCT-ATS ...................................................................................................... 12-4

Reference Documents............................................................ A-1

Glossary .................................................................................. B-1

Index ......................................................................................... I-1


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List of FiguresFigure 1-1: Multiple technologies in a typical SP network ............................................. 1-2

Figure 1-2: Layered management approach .................................................................. 1-4

Figure 1-3: ECI Telecom's layered architecture management concept ......................... 1-5

Figure 1-4: One management system ........................................................................... 1-6

Figure 1-5: Carrier class Ethernet requirements .......................................................... 1-11

Figure 1-6: Managing MP2MP MPLS-based Ethernet services through LightSoft...... 1-12

Figure 1-7: BroadGate product portfolio ...................................................................... 1-14

Figure 1-8: BroadGate family solutions ........................................................................ 1-15

Figure 1-9: Carrier Ethernet 9000 family ...................................................................... 1-16

Figure 1-10: Converged metro Ethernet transport network ......................................... 1-17

Figure 1-11: XDM integrated multiservice/multitechnology network solution .............. 1-19

Figure 1-12: XDM products portfolio ............................................................................ 1-20

Figure 2-1: LightSoft main window ................................................................................. 2-3

Figure 2-2: Link List table ............................................................................................... 2-4

Figure 2-3: Enhanced zoom capabilities ........................................................................ 2-6

Figure 2-4: MPLS layer .................................................................................................. 2-7

Figure 2-5: Optical layer ................................................................................................. 2-8

Figure 2-6: Availability Map window ............................................................................. 2-10

Figure 2-7: Timing Map window ................................................................................... 2-11

Figure 2-8: RSTP map view ......................................................................................... 2-12

Figure 2-9: ERP map view ........................................................................................... 2-13

Figure 2-10: Geographical map ................................................................................... 2-14

Figure 2-11: GCT example (LightSoft to EMS-XDM) ................................................... 2-15

Figure 2-12: APC chain model ..................................................................................... 2-17

Figure 2-13: FuN topology map ................................................................................... 2-18

Figure 2-14: PELES chain model ................................................................................. 2-21

Figure 2-15: PELES for mesh topology ....................................................................... 2-22

Figure 3-1: Automatic PE insertion on MPLS network ................................................... 3-3

Figure 3-2: Move NE window ......................................................................................... 3-4

Figure 3-3: Adding new route for XDM window ............................................................. 3-5

Figure 3-4: Chassis view for SR9705 ............................................................................ 3-9

Figure 3-5: EMS-BGF slot assignment ........................................................................ 3-10

Figure 3-6: NE attribute configuration .......................................................................... 3-11

Figure 3-7: EMS-BGF internal attributes configuration ................................................ 3-12

Figure 3-8: EMS-BGF synchronous timing configuration ............................................ 3-13

Figure 3-9: XDM Timing Configuration window ........................................................... 3-14


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Figure 3-10: Timing Map window ................................................................................. 3-15

Figure 3-11: STMS software code report ..................................................................... 3-17

Figure 3-12: STMS software audit ............................................................................... 3-17

Figure 3-13: UME Image window ................................................................................. 3-19

Figure 3-14: DCC configuration ................................................................................... 3-20

Figure 3-15: OSPF configuration ................................................................................. 3-21

Figure 3-16: BFD configuration .................................................................................... 3-23

Figure 4-1: Current Alarms window ............................................................................... 4-2

Figure 4-2: Defining Alarm Severity profiles .................................................................. 4-3

Figure 4-3: EMS-BGF alarm filtering options ................................................................. 4-4

Figure 4-4: Alarm counter bar ........................................................................................ 4-4

Figure 4-5: Alarm Indicator window ............................................................................... 4-5

Figure 4-6: Customizable alarm colors .......................................................................... 4-6

Figure 4-7: Alarms window with user note ..................................................................... 4-7

Figure 4-8: Filter Selection dropdown list ....................................................................... 4-8

Figure 4-9: Filter criteria in Filter panel .......................................................................... 4-8

Figure 4-10: Drilling down from alarms to services ........................................................ 4-9

Figure 4-11: Drilling down from services to alarms ........................................................ 4-9

Figure 4-12: LightSoft drilldown to STMS alarms ........................................................ 4-10

Figure 4-13: Connectivity loss alarm list ...................................................................... 4-10

Figure 4-14: Reducing the number of alarms displayed by using AlarmCorrelation .................................................................................................................... 4-12

Figure 4-15: Event Log History window ....................................................................... 4-13

Figure 4-16: Event Log Configuration window ............................................................. 4-14

Figure 4-17: Alarm notification options ........................................................................ 4-14

Figure 4-18: SMS alarm message filter ....................................................................... 4-16

Figure 4-19: Suggested Corrective Actions window .................................................... 4-17

Figure 4-20: EMS-BGF current alarms window ........................................................... 4-18

Figure 5-1: Point-and-click trail provisioning .................................................................. 5-3

Figure 5-2: Fine-tuning Pathfinder criteria ..................................................................... 5-4

Figure 5-3: Single path SRLG minimization ................................................................... 5-5

Figure 5-4: ME selected at trail splitting point ................................................................ 5-6

Figure 5-5: Trail List window .......................................................................................... 5-8

Figure 5-6: Trails pane showing Alarm State indication column (far right) .................... 5-8

Figure 5-7: Resource Tree pane showing diverse routing ............................................. 5-9

Figure 5-8: Create Filter window .................................................................................... 5-9

Figure 5-9: Show ASON Domain ................................................................................. 5-10


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Figure 5-10: Blend of protection mechanisms ............................................................. 5-13

Figure 5-11: Physical layer view .................................................................................. 5-15

Figure 5-12: SDH/SONET layer view ........................................................................... 5-16

Figure 5-13: Main and protection trails highlighted ...................................................... 5-18

Figure 5-14: Frequency availability table ..................................................................... 5-18

Figure 5-15: Availability map: after additional trails added .......................................... 5-19

Figure 5-16: DNI protection example ........................................................................... 5-20

Figure 5-17: DRI classic protection model ................................................................... 5-21

Figure 5-18: DRI enhanced protection model .............................................................. 5-22

Figure 5-19: Multiroute OCH with 16 routes each in both main and protection

paths ............................................................................................................................. 5-23

Figure 5-20: Combining multiroute OCH and DRI ....................................................... 5-24

Figure 5-21: User Preferences - Service Management window .................................. 5-27

Figure 5-22: Create Service window ............................................................................ 5-27

Figure 5-23: Endpoints tab ........................................................................................... 5-28

Figure 5-24: VPLS network configuration .................................................................... 5-29

Figure 5-25: Typical H-VPLS topology ......................................................................... 5-29

Figure 5-26: H-VPLS domain example ........................................................................ 5-30

Figure 5-27: ETH Service List window ......................................................................... 5-31

Figure 5-28: CFM configuration ................................................................................... 5-32

Figure 5-29: CFM tool button in E-LAN properties window ......................................... 5-33

Figure 5-30: Dual Homing for access network or internetwork connections ............... 5-34

Figure 5-31: Two methods for closing an RSTP ring ................................................... 5-35

Figure 5-32: Ethernet ring protection ........................................................................... 5-36

Figure 5-33: Layer 2 VPN provisioning ........................................................................ 5-38

Figure 5-34: STMS: E-Line operational status view .................................................... 5-39

Figure 5-35: E-LAN operational status view in STMS ................................................. 5-40

Figure 5-36: E-LAN Split Horizon Group creation in STMS ......................................... 5-41

Figure 5-37: E-LAN peer properties in STMS .............................................................. 5-42

Figure 5-38: Conceptual overview of QoS ................................................................... 5-43

Figure 5-39: Configuring QoS per device .................................................................... 5-44

Figure 5-40: Applying QoS template to multiple NEs .................................................. 5-44

Figure 5-41: QoS service definition creation ................................................................ 5-45

Figure 5-42: E-LSP ...................................................................................................... 5-46

Figure 5-43: Bypass tunnel creation ............................................................................ 5-47

Figure 5-44: Assigning service endpoints to an MPLS-TP tunnel ............................... 5-50

Figure 5-45: Creating dynamic RSVP LSPs ................................................................ 5-51

Figure 5-46: Load sharing across unequal paths ........................................................ 5-52


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Figure 5-47: Trail Consistency Indicator window ......................................................... 5-54

Figure 6-1: Topology Tree .............................................................................................. 6-2

Figure 6-2: Single availability tables for 32-channel OMS trail ...................................... 6-3

Figure 6-3: Optical availability table - sublambda view .................................................. 6-4

Figure 6-4: Availability for Link window based on CAC ................................................. 6-5

Figure 6-5: Availability Map window - ETH/MPLS ......................................................... 6-6

Figure 6-6: Viewing NE inventory through the EMS-XDM ............................................. 6-7

Figure 7-1: Trail Performance Monitoring window ......................................................... 7-2

Figure 7-2: MPPM tabular report ................................................................................... 7-4

Figure 7-3: MPPM report for MoT trail ........................................................................... 7-4

Figure 7-4: MPPM wizard ............................................................................................... 7-5

Figure 7-5: EMS-XDM Current Performance window .................................................... 7-7

Figure 7-6: XDM Performance History window .............................................................. 7-8

Figure 7-7: EMS-XDM PM Setup window ...................................................................... 7-9

Figure 7-8: EMS-XDM Thresholds Profile window....................................................... 7-10

Figure 7-9: XDM Optical PM Current/History window .................................................. 7-11

Figure 7-10: STMS Performance Output counter ........................................................ 7-13

Figure 7-11: Filtering PM data in the EMS-BGF .......................................................... 7-14

Figure 7-12: Setting PM thresholds in the EMS-BGF .................................................. 7-15

Figure 8-1: Maintenance Operations window ................................................................ 8-2

Figure 8-2: Requesting CFM for a specific service ........................................................ 8-3

Figure 8-3: CFM loopback request ................................................................................ 8-4

Figure 8-4: Path Protection Switch window ................................................................... 8-5

Figure 8-5: XDM Optical Parameters window ................................................................ 8-6

Figure 8-6: CFM configuration ....................................................................................... 8-7

Figure 8-7: Embedded version management................................................................. 8-8

Figure 8-8: Managing two different versions of the embedded software ....................... 8-9

Figure 9-1: Resource Domain Partitioning ..................................................................... 9-3

Figure 9-2: Security Configuration window .................................................................... 9-4

Figure 9-3: Add Resource Domain window ................................................................... 9-5

Figure 9-4: Typical CNM configuration .......................................................................... 9-8

Figure 9-5: Security Configuration window (Preferences tab) ..................................... 9-10

Figure 9-6: Activity Log window ................................................................................... 9-11

Figure 9-7: System redundancy ................................................................................... 9-14

Figure 9-8: RDR Shadow backups .............................................................................. 9-14

Figure 10-1: SNMP GW included in network configuration ......................................... 10-5

Figure 11-1: EMS: three network perspectives ............................................................ 11-2


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Figure 11-2: Layered management system ................................................................. 11-5

Figure 11-3: STMS GUI features ................................................................................. 11-6

Figure 11-4: STMS typical use: viewing operational status per service ...................... 11-7

Figure 11-5: Platform view as displayed in the EMS-BGF ........................................... 11-9

Figure 11-6: NE Simulator .......................................................................................... 11-10

Figure 11-7: FE utilities on the EMS-BGF .................................................................. 11-11

Figure 11-8: EMS-ATS main window ......................................................................... 11-12

Figure 11-9: EMS-ATS via LightSoft: seamless integration ....................................... 11-13

Figure 11-10: Creating an ATM VC connection ......................................................... 11-14

Figure 11-11: Event log window ................................................................................. 11-15

Figure 11-12: Generic EMS main screen ................................................................... 11-16

Figure 11-13: AccessWave management system view ............................................. 11-17

Figure 11-14: Generic EMS in the Current Alarms window ....................................... 11-18

Figure 12-1: LCT-XDM main window ........................................................................... 12-2

Figure 12-2: LCT-XDM shelf view ................................................................................ 12-2

Figure 12-3: Platform view as displayed in the LCT-BGF ............................................ 12-3

Figure 12-4: LCT-ATS main window ............................................................................ 12-4


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In this chapter:Network Management in a Multitechnology Environment............................. 1-1

Managing a Moving Target with LightSoft..................................................... 1-3

Layered Management Concept........................................................................1-5

LightSoft's Clear Advantages........................................................................ 1-10

Intelligent Management for Intelligent Networks......................................... 1-13

Network Management in a

Multitechnology EnvironmentToday's telecommunications market has grown increasingly complex, requiring

service providers (SPs) to offer a wide range of consumer services through a

mixture of sophisticated technologies. SPs must maintain their current TDM

and HSI services while gradually adding the triple play services of VoIP, IPTV,

and VoD, as well as providing other Ethernet-based service for business

(Virtual Private LAN Service or VPLS), 3G Ethernet-based mobile

aggregation, wholesale services, and more, all in a single unified network.

Many carriers are currently migrating from legacy SDH/SONET-only

networks. The first stage is to establish next generation (NG) networks that

support Carrier Ethernet traffic over pluggable data cards within existing

XDM

MultiService Provisioning Platforms (MSPP) platforms. LightSoft

provides smooth integration for SDH/SONET MSPP and packet-based CESR

platforms. The ultimate goal is to establish packet-optical Ethernet-over-WDM

networks.

This transition poses many challenges to Network Management Systems

(NMSs). The NMS must monitor the network while correlating alarms from

different logical layers and providing end-to-end (E2E) provisioning of

SDH/SONET trails and optical Ethernet services.

1

Introduction


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Due to the evolution of network design and the gradual introduction ofdifferent technologies, implementation and provisioning of services can be

quite complicated. It is not uncommon for several technologies, often residing

in different network elements (NEs), to work together to deliver a service.

The following figure illustrates the layers in a network with Ethernet,

SDH/SONET, and optical technologies, highlighting some of the intricacies of

network management.

Figure 1-1: Multiple technologies in a typical SP network


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In this example, a Layer 2 Ethernet service is provisioned on an MPLS-TPtunnel, which, in turn, is configured on an MPLS over Transport (MoT)

low-order (LO) SDH VC-3 client connection that resides on a high-order SDH

VC-4 server connection. This VC-4 link is deployed on a LightPath (LP) trail,

the client of an Optical Channel (OCH) trail, which, in turn, is a client of an

Optical Multiplex Section (OMS) trail. Finally, the OMS trail needs to be

configured on top of a physical fiber that is in a shared-link risk group (SLRG).

Successful provisioning and monitoring of the Ethernet service requires correct

management of all infrastructure layers below it - obviously a definite

challenge to the network manager.

Managing a Moving Target withLightSoft

ECI Telecom offers SPs a unique value proposition: a single NMS that

provides seamless E2E service while ensuring smooth migration from legacy to

NG networks. For example, NG platforms optimally suit areas requiring dense

data services, while existing XDM platforms efficiently provide low volumes

of data services at the distant peripheries. Data traffic offload from one to the

other can easily be managed by ECIs multidimensional multilayered1

LightSoft

NMS.

LightSoft pioneered a new concept in network managementmultidimensionalmanagementenabling users to manage multiple technologies (SDH/SONET,

ASON, DWDM-based optical, ROADM, Carrier Ethernet, and MPLS)

independently of the physical layer. LightSoft simultaneously provisions,

monitors, and controls many network layers with multiple transmission

technologies. It does this from one application, using the same software

platform and database.

1ECIs multilayer technology is a registered patent.


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The entire range of ECI Telecom's transport solutions can be managed easilyand reliably. LightSoft's innovative approach, illustrated in the following

figure, allows carriers to add management layers as they add new technologies.

Figure 1-2: Layered management approach

A carrier that starts with an SDH/SONET network can manage the network

topology using LightSoft's SDH/SONET layer. When Carrier Ethernet services

are added, all that has to be done is to activate the Ethernet/MPLS layer already

built into LightSoft. The next stage, typically, is to acquire additional capacity

via WDM technologies using the same physical infrastructure. Again,

LightSoft is ready, with an optical management layer that manages the

DWDM, CWDM, LP, ODU, OCH, and OMS trails. LightSoft also supports

full ASON protection, smoothly integrated into the SDH layer.


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Layered Management ConceptECI Telecom's management concept is based on a layered architecture in

accordance with the ITU-T M.3010 standard for compliant layer architecture.

Separate layers make up the management structure. The lowest level, the

Network Element Layer (NEL), constitutes the embedded agent software of the

NEs. The second layer, the Element Management Layer (EML), controls many

individual NEs, while the third layer, the Network Management Layer (NML),

controls the main network management functions.

Figure 1-3: ECI Telecom's layered architecture management concept

LightSoft functions at the NML, while a variety of different Element

Management Systems (EMSs) controlled through the LightSoft umbrella

function at the EML. Each EMS (EMS-XDM, EMS-BGF, etc.) is tailored to a

specific type of NE. A northbound interface connects either the EMS or

LightSoft to your Operations Support System (OSS). In addition, the platforms

are equipped with LCT applications, providing fast connectivity to the NE andenabling installation, configuration, and management functions.


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LightSoft provides crystal-clear management control of the physical,SDH/SONET, data, and optical layers:

Physical layer: sites, equipment racks, NEs, fibers, and electrical or radio

connections.

SDH/SONETlayer: ADMs, cross connects (XCs), terminals, and service

trails from 2 Mbps to STM-256/OC-768, including ASON protection and

recovery capabilities integrated seamlessly into the rest of the network.

Data layer: Ethernet services, logical topologies between cards and data

bridges, MPLS- and Provider Bridge (PB)-based Carrier Ethernet services.

MPLS tunnels may be configured over Ethernet (MoE) or SDH/SONET

(MoT) connections. Rapid Spanning Tree Protocol (RSTP) and EthernetRing Protection (ERP) mechanisms are available, as well as the structured

design advantages of hierarchical VPLS (H-VPLS) domains and logical

administrative groups.

Optical layer: DWDM Muxes, DeMuxes, amplifiers, and optical ADMs.

E2E optical trails can be configured over ODU and OCH interfaces, with

optical DRI and multiroute OCH providing robust protection options.

LightSoft makes navigation between the physical and service layers

transparent. You can easily perform all monitoring, maintenance, and

management operations via the GUI or standard CORBA interfaces.

This layered architecture concept provides comprehensive control of all

transport equipment in your network.

Figure 1-4: One management system


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The network management suite includes comprehensive configuration, faultmanagement, PM, administration, maintenance, and security tools for all the

technologies in your network, ensuring efficient resource control, streamlined

operation, and high QoS. You can view all aspects of the network at a glance

and fully control all elements. In addition, multiple users can simultaneously

configure the network without causing access conflicts.

Network configuration and provisioning tasks for SDH/SONET links, optical

trails, MPLS-TP tunnels, and Ethernet services are native to LightSoft. The

intuitive point-and-click interface facilitates LP, ODU, and OCH provisioning,

as well as MoT/MoE tunnel configuration and top-down provisioning. E2E

trail provisioning utilizes a sophisticated Pathfinder algorithm. Downtime is

significantly reduced due to fast alarm handling, online reports, flexible

management, and comprehensive logs. Failsafe database backup and disk

mirroring ensure uninterrupted operation and data integrity.

LightSoft provides a holistic solution for your network management

challenges: simple, smart, scalable, and centralized. Its intuitive front-end GUI

is backed up by sophisticated server engines. Its on-demand service

provisioning and pinpoint bandwidth allocation dramatically reduce equipment

and operating costs usually incurred by multiple management systems.

With ECI Telecom's hierarchical approach to network management, LightSoft

serves as a global E2E management 'umbrella' for the entire network. Every

family of products has its own EMS. LightSoft provides a completely scalable

solution by managing thousands of NEs via their respective EMSs. When youlook at the whole picture, it's obvious that LightSoft is truly a carrier class act!

Powerful Set of FeaturesLightSoft's feature set includes:

Totally GUI-based management system: Operational teams can perform

network and element management through graphical interfaces, thereby

dramatically reducing the use of CLI.

LightSoft is designed to provide the same look and feel when managing

Carrier Ethernet/MPLS, DWDM, or SDH/SONET. This philosophy is

implemented for all Fault, Configuration, Accounting, Performance, and

Security (FCAPS) modules. For example, the GUI for provisioning an

Ethernet service and an SDH/SONET circuit are the same, although the

underlying technology and equipment are very different.

The rich user-friendly GUI provides many advanced features, including

sortable tables, customizable columns and counters, nested groups, and

color-coded links. Point-and-click functionality is available at all levels,

both physical and logical.


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Multilayer topology views: The topology of each logical layer is displayedindependently of the physical layer. LightSoft automatically recognizes the

relationships between layers. The displayed layer shows its own objects

and links, as well as "virtual" representations of trails from an underlying

technological layer.

Fast and flexible fault management: Effective alarm handling, online

event reporting, and current/history fault logs all lead to reduced downtime.

Alarm displays include links to alarm troubleshooting tips. Each logical

layer shows its own alarms. An alarm correlation feature enables you to

quickly identify the root cause of a problem without having to check a long

chain of secondary alarms.

E2E trail, tunnel, and service definition: Comprehensive definition ofSDH/SONET and optical trails, MPLS tunnels, and Ethernet services for

primary and protection paths. Support for all types of trails and links (MoT,

MoE, EoS, ETY, SDH/SONET, optical), protection schemes, and user

constraints. Simply point and click to connect any two endpoints, even in

the most complex topology. LightSoft provides powerful trail

reconstruction options to reconcile discrepancies between different layers,

as well as batch traffic management capabilities. LightSoft provides

smoothly integrated management for optical, MSPP, and CESR platforms.

Complete network scalability for services and bandwidth, ranging from

megabits to terabits with variable granularity and hundreds of thousands of

trails and services. LightSoft gives you total control over networkscalability.

Simple operation and fast learning: Designed to simplify day-to-day

operations, LightSoft's GUI facilitates enhanced navigation, network

monitoring with easy fault localization, and simple deployment of new

services.

Multiple users and configurators: LightSoft provides E2E provisioning

over an entire transmission network. Many users can configure the network

simultaneously, with no conflict or confusion, ensuring productivity and

efficiency.

Full E2E Operations, Administration, and Management (OAM)of

Ethernet links and MPLS-TP tunnels, for efficient fault localization,

performance information, and data and diagnosis functions across optical,

MSPP, and CESR platforms.


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Integration in TNM environments: LightSoft complies with all relevantITU-T standards and TeleManagement Forum (TMF) recommendations for

northbound and southbound interfaces. The TMF MultiTechnology

Network Management (MTNM) standard interface between LightSoft and

the EMSs enables LightSoft to integrate easily with OSSs. Your system can

perform operations such as fault handling, service provisioning, inventory

management, and billing for ECI Telecom NEs. Management via

standardized interfaces means that existing equipment can still be used, a

considerable CAPEX saving.

Convenient simple network management across different networks:

LightSoft enables point-and-click service creation and management across

MPLS, PB, and unmanaged element (UME) third-party device networks.

LightSoft uses preprovisioned Connection Admission Control (CAC) to

check for resource availability on service provisioning. You can also define

SRLGs to enhance and guarantee protection.

Comprehensive security: LightSoft runs in a hardened UNIX operating

system environment to protect against hacking and intrusions, unauthorized

access to sensitive customer data, and damage to normal system

functionality, intentional or unintentional. See User Management and

System Security (on page 9-1).

Fail-safe database backup: Additional hardware may be deployed as

standby to assume full control of the network if the active site fails,

ensuring uninterrupted operation and data integrity. Comprehensive configuration, maintenance, and PM tools: A

comprehensive tool set enables full efficient control of network resources,

resulting in streamlined operation and superior QoS. Multiperiod PM offers

complete network visibility through historical reports for trails, tunnels, and

services according to user parameters and settings. The carrier can monitor

network performance and quickly identify changes, trends, and

inefficiencies, ensuring that SLAs are met.

Sophisticated Resource Domain Partitioning (RDP) and Customer

Network Management (CNM): RDP is the ability to divide a network into

many different resource domains, or logical regions, each with its own

capability and resources profile. CNM is the ability to partition a managednetwork's resources (domains) amongst various users (CNM clients) and

assign them different capabilities (profiles). SPs can lease ports, cards, or

entire NEs to CNM clients and operators can functionally partition their

network amongst their own subdivisions for organizational reasons.

LightSoft offers an extremely fine-grained selection for both capabilities

and domains.


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LightSoft's Clear AdvantagesManaging physical, SDH/SONET, data, and optical networks through a single

NMS offers several valuable benefits:

Significant reduction in OPEX: Total Cost of Ownership (TCO)is

reduced by fewer servers and systems and less staff that needs to be trained

and employed.

Streamlined operations and enhanced efficiency: LightSoft can easily

automate tasks in a way that is not possible with multiple standalone

NMSs. For example, with a single click of a button, LightSoft can drill

down from an Ethernet service to the associated SDH/SONET or opticaltrail. Many similar functions in LightSoft save valuable time and effort and

allow for quicker resolution of network failures, resulting in lower OPEX

and higher QoS. To achieve the same functionality with separate NMSs,

possibly from different vendors, would require complicated and costly

integration. LightSoft supports the tightest level of integration between

Carrier Ethernet, SDH/SONET, and optics.

Single point of integration towards external systems, such as the

carrier's OSSs or Base Station Systems (BSSs). LightSoft interfaces with

external systems using a standard CORBA-based TMF-814 MTNM

interface.

Intuitive easy-to-use GUIoffers a consistent look and feel across alltechnologies, equipment, and applications. This means a short learning

curve, lower integration costs to the OSS level, and efficient use of staff

resources.

Flexible multilayered approachallows you to navigate quickly between

physical, SDH/SONET, optical, and Ethernet views of the same network,

making it much easier to visualize the different logical strata.

Efficient user and security managementthrough controlled user access

according to the carrier's organizational needs.

Fast fault resolutionwith short mean time to repair (MTTR).

Migration to Carrier Ethernet/MPLS (or other NGN) at your own pace.LightSoft's single user interface and familiar look and feel allow you to

start managing additional networks quickly with minimal training.

Typically, a LightSoft user is able to perform full management, monitoring,

and provisioning for the SDH/SONET, Carrier Ethernet/MPLS, and

DWDM domains of the network. Supported Carrier Ethernet/MPLS

network types include:

Hierarchically organized MPLS network, using VPLS logical elements

(LEs) organized into logical domains connected by MPLS tunnels.

Ethernet Access Hierarchical VPLS (EAH-VPLS) networks.


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PB networks, using Bridge LEs and VPLS LEs connected by EthernetI-NNI (Internal Network to Network Interface) links.

Easy implementation of additional new technology layers.

New revenue potentialby leveraging architecture through CNM.

LightSoft's integrated approach and flexibility allow you to configure the

security scheme according to logistical and organizational needs without

the complexities of dealing with several different NMSs.

In today's competitive telecommunications market, consumers require

guaranteed carrier class service delivery from access to core. The classic

definition of carrier class service includes rigorous standards for QoS,

reliability, security, scalability, multiprotocol support, and E2E service

management.

ECI Telecom's powerful, field-proven LightSoft meets and exceeds market

expectations for a carrier class NMS. It is indeed the management system for

today's as well as tomorrow's networks.

Figure 1-5: Carrier class Ethernet requirements


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Flexible Tailor-Made ConfigurationLightSoft allows you to commission and configure services in local and remote

networks. NEs can be deployed in a wide range of topologies, including

combinations of mesh, single or multiple rings, chains, and composite

topologies incorporating terminal multiplexers. With LightSoft, you can build

your transmission network, configure NEs, and monitor alarms using real-time

information, including user-generated notes.

Figure 1-6: Managing MP2MP MPLS-based Ethernet services through LightSoft

You can partition the managed network by NE groups, individual NEs, or even

individual ports, enabling you to open sessions and manage/monitor all or parts

of the network simultaneously. LightSoft lets you move intuitively from an

overall survey of the network landscape to detailed status and control views of

the layers, elements, transmission levels, ports, or trails. You can create and

work with administrative groups and nested groups in each layer.

LightSoft provides you with E2E top-down provisioning capabilities of carrier

class Ethernet services and automatically configures all the required network

parameters.

You can use LightSoft to export management data to other systems. You canalso choose to manage trails by third-party applications via a CORBA-based

TMF-814 standard interface.

NOTE: Unless otherwise noted, the information in thisdocument applies to both SDH and SONET network

configurations. Specifications that are relevant for one type of

configuration only are indicated.


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Intelligent Management forIntelligent Networks

In our cost-conscious era, intelligent management systems are essential for

telecom profitability. ECI Telecom's innovative management solutions give

you the critical advantages necessary to succeed.

ECI Telecom product families provide a comprehensive selection of platforms.

These products come with powerful field-proven management systems

centrally managed by LightSoft. You are assured of consistently superior

network performance. The product families include:

The XDMAll-Native MSPP/P-OTS family for metro and cellular

networks, intelligently integrating the capabilities of multiple technologies

in a single shelf-size element. XDM platforms are managed by the

EMS-XDM.

The 9000 familyof Carrier Ethernet Switch/Routers (CESR), delivering

E2E access-to-core, carrier class Ethernet services and bringing the

qualities of transport networks to a scalable packet platform. The CESR

9200, 9600, and 9700 series are managed by the STMS (on page 11-4).

The BroadGate

family of All-Native and All Packet Multiservice

platforms, an integrated access solution carrying voice and Ethernet over

optical fiber and licensed microwave radio to customer premises.BG-20/30/64/9300 platforms are managed by the EMS-BGF (on page 11-

9).

The BG-Wavemultiservice radio node (MRAN) provides integrated

microwave transport with full networking and multiservice capabilities.

The BG-Wave supports native Ethernet microwave radio or hybrid native

Ethernet and native TDM microwave radio service, providing optimized

delivery for any mixture of services. BG-Wave platforms are also managed

by the EMS-BGF.

TheAccessWaveWDM portfolio enables high bandwidth transport

services over WDM in metro, access, and smaller regional networks.

AccessWave platforms, Ceragon, and other private label OEM andmultivendor equipment networks are managed by the Generic EMS (on

page 11-16).

The Artemis passive optical series is a compact high-density low-cost

solution that provides multiplexing and dispersion compensation

capabilities for all ECI Telecom optical platforms. Artemis is managed

directly by LightSoft.

ATS cardsare ATM switches that aggregate and concentrate 3G ATM

traffic within XDM platforms. They are managed by the EMS-ATS (on

page 11-12).


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SYNCOM

family of multiplexers at the STM-1, STM-4, andSTM-16 layers, managed by the EMS-SYNCOM.

Third-party equipment such as the Ceragon FibeAir wireless systems.

ECI Telecom network equipment smoothly integrates with external

networks, interfacing through the Generic EMS application. Management

information flows freely between SDH/SONET and other complimentary

access, radio, and switching products.

BroadGate FamilyThe BroadGate family provides All-Native and All-Packet multiservice

products for RAN, metro-access, and access applications. BroadGate productsare deployed as CPE at customer locations, as CLE in cell towers, and as

cost-effective metro aggregation devices.

Figure 1-7: BroadGate product portfolio

BroadGate platforms provide a full set of MPLS-TP and Native Ethernet

Layer 2 capabilities combined with an entire range of Ethernet over

SDH/SONET (EoS), MPLS over SDH/SONET (MoT), MPLS over Ethernet

(MoE), Ethernet over PDH (EoP), Pulse Code Modulation (PCM), PDH, and

SDH/SONET services, for both optical and microwave radio physical media.

The BroadGate product line MPLS and Layer 2 Ethernet capabilities offer

carriers a crystal clear migration path from pure TDM-based legacy services to

new value-added Ethernet-based services. The platforms enable optimizedtraffic-handling in a mixed traffic environment, skillfully dealing with both

TDM and Ethernet natively and independently via dedicated switching fabrics.

This prevents one traffic type from adversely affecting the other.

The BroadGate MPLS cards support full triple play services, IPTV, VoD,

VoIP, and HSI for residential NGN applications. This comprehensive set of

capabilities allows carriers to leverage their legacy SDH/SONET installed base

while offering an attractive mix of PCM and carrier class Ethernet services to

their customers.


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The BroadGate family also optimizes as an access aggregator and as aMultiService Aggregation Gateway (MSAG) CLE. BroadGate platforms

support enhanced video handling and P2MP multicast tree connectivity,

enabling highly efficient bandwidth savings for broadcast TV/IPTV services, as

well as star VPLS for IPTV and IGMP control messages.

Figure 1-8: BroadGate family solutions

For more information about BroadGate platform capabilities, see the

BroadGate Product Line General Description.

CESR 9000 FamilyECI Telecoms Carrier Ethernet 9000 family was designed from the ground up

to bring the qualities of transport networks to a scalable packet platform. The

Carrier Ethernet 9000 family enables a smooth migration from TDM to CarrierEthernet networks, offering a complete suite of E2E Carrier Ethernet and IP

services and transport for business, residential, and mobile networks. ECI

Telecom platforms offer carrier grade solutions tailored to the expectations of

each client, including:

Advanced QoS

Guaranteed QoE

MPLS-based control plane including IP/MPLS, MPLS-TP, and IP/MPLS to

MPLS-TP gateway functionality

PW technology for delivering legacy traffic


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Advanced synchronization mechanisms

The unified infrastructure with E2E management capabilities supports an

efficient convergence of multiple services over multiple technologies,

simplifying network planning, implementation, and management, and lowering

expenses considerably.

Figure 1-9: Carrier Ethernet 9000 family

The group of sophisticated Carrier Ethernet switch routers, aggregation

switches, and demarcation units meet or exceed all relevant MEF, IEEE,

NEBS, ITU-T, and IETF standards. ECI Telecom's 9000 family is a set of high

performance, high density carrier class multiservice platforms for access and

metro networks. They are part of ECI Telecom's comprehensive metro Ethernet

offering, optimized across multiple transport/service layers to provide seamless

provisioning and operation.

The full range of Layer 2 and Layer 3 features, combined with delivery of

legacy services over packet infrastructure, make the Carrier Ethernet 9000

family ideal for:

Broadband residential triple playenabling deployment of a singleinfrastructure for residential and business voice, video, and data services

supporting per-subscriber QoS. Services include:

Digital Broadcast and Multicast TV (DBTV/IPTV)

HSI over broadband access

IP multicast for video distribution

Voice and Video over IP (V2oIP)


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Broadband business/enterpriseservices supporting a smooth transitionfrom leased line to packet services, including Ethernet private line,

Ethernet LAN (E-LAN), and IP VPNs in a single platform. The 9000

family provides sophisticated QoS capabilities. For Layer 2 services, the

H-QoS model includes all the policing, metering, and scheduling

hierarchies necessary to support triple/multiplay or business application.

The H-QoS model supports the per-subscriber queuing necessary for a

flexible and fair mix of guaranteed and best effort services and service

components, in terms of bandwidth, delay, delay-variation, and loss

probabilities.

Mobile aggregation and backhaulservices supporting a gradual evolution

of cellular networks to Ethernet-based networks. Synchronous Ethernet

(SyncE) and IEEE 1588v2 Precision Time Protocol (PTP) are native to the

platform and management system, enabling even the most complex hybrid

network configurations to function smoothly and flawlessly. The 9000

family enables growth in personalized services, meeting the demand for

converged service offerings.

ECI Telecoms Carrier Ethernet 9000 family provides a cost- and

performance-optimized solution for multiple layers of transport and service

delivery with a unified management system that provides simplified service

provisioning and monitoring. The high adaptability and build-as-you-grow

architecture leads to considerable savings in OPEX and CAPEX.

Figure 1-10: Converged metro Ethernet transport network

For more information, see the complete set of Carrier Ethernet 9000 Family

General Descriptions.


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XDM FamilyECI Telecom's XDM is a family of All-Native multiservice transport platforms

that integrates all the transport functions of a complete Point of Presence (POP)

in a single shelf-size element. The XDM accommodates the growing demand

for data bandwidth while maintaining cost-efficient flexible support for all

types of traffic, including voice, data, and video.

The XDM combines the high manageability, fast protection time, and multiple

topology support of TDM with the enhanced connectivity and availability of

XCs, C/DWDM bandwidth, and the efficient transport of MPLS, Ethernet, IP,

and ATM. The result is a powerful, flexible, and reliable platform with

unparalleled functionality.The XDMs All-Native nature enables optimized traffic handling in a mixed

traffic environment, skillfully dealing with both TDM and Ethernet natively

and independently via dedicated switching fabrics. This prevents one traffic

type from adversely affecting the other. The native handling of both TDM and

Ethernet assures the lowest TCO for transporting all types of traffic while

supporting a smooth transition path from TDM-centric to data-centric

networks.

The XDM's exceptional grooming capabilities and high-order/low-order

granularity make it extremely adaptable to traffic changes. Its outstanding

performance reduces line resources and eliminates bottlenecks in metro sites.

The modular design features universal I/O slots and hot-swappable cards andmodules. This flexibility enables the provisioning of multiple combinations of

topologies, bitrates, protection schemes, and ports or protocols.


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Designed to accommodate network growth, the XDM provides multi-degreeWDM ROADM, OTN support, and high-capacity optical interfaces, thereby

eliminating the need for additional external WDM equipment.

Figure 1-11: XDM integrated multiservice/multitechnology network solution

XDM platforms are organized in two groups:

XDM-100 product line, All-Native MSPP for metro aggregation networks:

XDM-100, compact All-Native MSPP with CWDM for metro-access

and aggregation

XDM-300, high capacity All-Native MSPP with CWDM for metro

aggregation

XDM-900, high capacity, compact, All-Native MSPP for metro

aggregation

XDM-1000 product line, converged All-Native MSPP and all-range

P-OTS:

XDM-40, WDM OTN for metro-access and CPE

XDM-450, ROADM extension shelf XDM-500, compact core All-Native MSPP with ROADM

XDM-1000, metro-core All-Native MSPP with ROADM

XDM-2000, high capacity All-Native WDM

XDM-3000, high capacity metro-core All-Native MSPP


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For more information about XDM platform capabilities, see theXDM ProductLine General Description.

Figure 1-12: XDM products portfolio


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In this chapter:Overview.........................................................................................................2-1

LightSoft Main Window..................................................................................2-3

Multilayer Topology Views.............................................................................2-6

Network Elements, Logical Elements, and Managed Elements...................... 2-8

Functional Topology Maps..............................................................................2-9

Tunnel and Service Management.................................................................. 2-14

GCT to EMS..................................................................................................2-15

Optical Topology Management..................................................................... 2-16

OverviewThe LightSoft GUI provides a powerful yet easy-to-use tool for managing your

network. It combines security, configuration, maintenance, and performance

management tools with fault handling, E2E trail definition, and fail-safe

database backups for uninterrupted and reliable network operation. LightSoft's

powerful tools and capabilities are easily accessed through the main window

(see "LightSoft Main Window" on page 2-3).

The LightSoft GUI features multilayer topology views (on page 2-6). A single

physical layer view is correlated with multiple logical views. Logical views

may be for a specific technology, such as all SDH/SONET, ASON, optical, or

data nodes and links, or for a specific logical context, such as all ODU or OCH

nodes and links, or all components included in a CNM. Multilayer views

enable you to display the topology of each logical layer independently of the

topology of the physical layer.

2

Topology Management


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You can display logical views of NEs, organized and presented according to aparticular context. For example, if you wish to work on Ethernet services in the

network, you can select a logical Ethernet view that includes only the network

components relevant for Ethernet services. (See Network Elements, Logical

Elements, and Managed Elements (on page 2-8).)

Networks today are larger and more complicated than ever before, often

including thousands or even tens of thousands of elements and components.

Managing these complicated networks is a difficult challenge. A clear

user-friendly GUI with intuitive functionality, detailed online help, and

extensive report functions, while certainly nice, is simply not enough.

Therefore, LightSoft provides a sophisticated set of intelligent management

tools and features to help cut down your management tasks to a moremanageable size.

LightSoft's intelligent sorting and filtering functionality helps you focus onthe network components relevant to the task at hand.You can sort and filter

by any field, displaying or hiding any table column(s) for any table or list in the

system. It is almost impossible to locate a specific element in a very large

network, and LightSoft's sophisticate functionality helps you do just that. The

system's ease of use has many benefits: it cuts down training time, simplifies

complex configurations and actions, and significantly reduces response time.

Each operator can open a LightSoft configuration customized for theirpersonal working mode. You can save specific sorting or filtering criteria

settings and customize each layer's view to reflect its site hierarchy and the wayits corresponding network is administered. Customized views enable you to see

only the most pertinent information and provide streamlined access to the

functionality you need most.


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LightSoft Main WindowThe LightSoft main window contains everything needed for uninterrupted and

reliable network operation, including configuration, maintenance, performance

and fault management tools, and E2E trail definition. Optionally, it can also

contain a background map of your network topology. Items can be bookmarked

to allow easy location.

The following figure shows the LightSoft main window accessed after logging

in to the system. When the application is active and not minimized, the main

window is displayed as active or as background.

Figure 2-1: LightSoft main window

You can simultaneously open multiple windows showing different views of the

network with selected topology groups or objects. Each view can display a

different topology layer independent of other layers and allow different

operations. The views can be cascaded or tiled on the screen as required.LightSoft main window components include:

Navigator: As LightSoft can manage thousands of NEs, it is essential to

navigate very complex topologies in the user interface. The Navigator

provides a convenient thumbnail representation of the entire topology in a

small window on top of the main window. You can quickly zoom in and

out, bringing a sense of order and control to even the largest and most

complex topologies.


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Topology Links: Working with links in LightSoft is quick and simple. Onthe system map, links are represented by lines connecting two elements.

They are color-coded for alarms. A topology link indicates the actual

number of links represented between any two elements and may be created

in any topology view (physical, SDH/SONET, ASON, Ethernet/MPLS, or

optical). Link widths vary according to rate.

Topology links may be physical links, created manually or acquired from

an EMS through a discovery process, or virtual links. In logical views,

virtual links are representations of trails, tunnels, services, or other links in

an underlying technology or logical layer. For example, if you define a

LightPath in the optical layer that carries Ethernet traffic, LightSoft

automatically creates a corresponding virtual link on the Ethernet layer.This virtual link can then be used to configure Ethernet services over the

optical LightPath link.See Multilayer Topology Views (on page 2-6).

Once created, topology links can be edited or modified. A convenient Link

List table displays an organized inventory of the topology links and

simplifies link location and management. Links can be sorted and filtered

for clarity and focus. The Link List makes it simple to edit link attributes,

enabling attribute changes to multiple links simultaneously.

Figure 2-2: Link List table

Link attributes such as cost, distance, and quality are used by the Pathfinder

(on page 5-3) algorithm for optimizing routes. For example, Pathfindertakes into account situations where links in a network share a common

physical attribute and associated vulnerabilities (SRLG). Pathfinder by

default prefers potential single path routes that minimize the number of

separate SRLGs amongst the path segments, so minimizing the risk

involved in the route itself.


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Topology Groups: Multiple NEs can be combined into a singleadministrative group, represented by a single icon in the topology view.

Groups may represent physical sites, geographic regions, or even logical

subnetwork units. You can also define groups that are nested within other

groups.

A group can easily be expanded to display all component NEs and their

connections, or collapsed to the single group icon. The group icon always

displays the propagated alarm status within that group.

At the physical layer, groups are composed of sites and managed elements

(MEs). At the technology level (SDH/SONET, ASON, Ethernet/MPLS,

and optical) LE groups can be formed. In the Ethernet/MPLS layer, groups

are automatically formed for logical MPLS and PB networks.

Multilink Expansion: Multiple physical and logical links may exist

between two nodes (MEs, LEs, UMEs, and/or groups) and are shown as

thick labeled lines called multilinks that run between objects.

Focus on a multilink to expand the single link line and display the actual

topology or internal links between/within elements and their port endpoints.

Specific NEs at the link endpoints can be shown, even when they are within

nested groups, regardless of the depth of nesting that may apply. You can

also access additional information and functions for each link.

NEs, LEs, and MEs: Networks consist of groups of network elements

(NEs) that may be viewed on many different levels or layers (LightSoftoffers multiple views of the same network). The physical layer view

displays the physical elements and their connections. The various logical

layers display logical connections between logical elements that all belong

to a specific logical or technological category, such as the optical layer or

the Ethernet services layer. Logical elements are user-controlled and can

represent optical or data components, such as transponders, combiners,

Ethernet switches, etc. Special maps are used to focus on specific network

aspects such as RSTP, ERP, or timing topology (Functional Topology

Maps (on page 2-9)).

An NE may be a managed element (ME) or unmanaged element (UME).

LightSoft makes it simple to add MEs and/or UMEs into an existing link.

An inserted UME can be useful for maintaining accurate network topology.If the inserted object is an ME, the relevant XC changes are downloaded to

the actual NE via its EMS. The procedure automatically creates new links,

properly configures the trails on the new link, and deletes the old link.

There is no need to manually delete or edit trails. (Working with LEs, MEs,

and UMEs is explained in greater detail in Network Elements, Logical

Elements, and Managed Elements (on page 2-8).)


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Enhanced Zoom Capabilities: LightSoft supports enhanced zoomcapabilities. A cloud makes it easy to spot islands of connected nodes.

Figure 2-3: Enhanced zoom capabilities

Inventory Tree, described in Inventory and Accounting (on page 6-1).

Alarm Counters, described in Fault Management (on page 4-1).

Trail and Tunnel Segment Inconsistency Counters, described in Trail

Consistency Indicator and Tunnel Segment Consistency Counters.

Multilayer Topology ViewsAs a multidimensional NMS, LightSoft can manage many types of equipment

and technologies. Advanced topology map design multilayer topology views

greatly facilitates this management.

You can display logical layers independentlyof the topology of the physical

layer. The displayed layer shows its own objects and links, as well as "virtual"

link representations of trails from an underlying technological layer.

Each layer contains its own alarm indicators, enabling separate fault

management of each technology. You can choose which layer to view from a

list displayed in the LightSoft main window.

The physical viewsdisplay the network infrastructure, that is, the physical

topology of the NEs and the physical connections between them. Each icon

represents a physical element (e.g., XDM, BG, or CESR platform). This view

is used for adding, configuring, deleting, and defining the connections betweenNEs.

LightSoft uses a convenient GUI Cut Through (GCT) to access EMSs directly

(see "GCT to EMS" on page 2-15). The EMS topology view displays all

elements represented by the respective EMS workst