osn 7500 ii&7500&3500&1500 v200r011c02 feature description (packet transport domain) 03

OptiX OSN 7500 II/7500/3500/1500V200R011C02

Feature Description (PacketTransport Domain)

Issue 03Date 2012-11-30

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2012. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied. Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.comEmail: [email protected]

Issue 03 (2012-11-30) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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About This Document

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

Product Name VersionOptiX OSN 7500 II V200R011C02OptiX OSN 7500 V200R011C02OptiX OSN 3500 V200R011C02OptiX OSN 1500 V200R011C02iManager U2000 V100R005

Intended AudienceThis document describes the features and functions of the OptiX OSN 7500II/7500/3500/1500equipment, in terms of basic concepts, availability, implementing principles, applications,configuration, and troubleshooting.After reading this document, you can deeply understand these features and functions. Moreover,you can configure these features and functions on the U2000, and learn about the methods oftroubleshooting these features and functions on the U2000.This document is intended for:l Installation and Commissioning Engineerl Data Configuration Engineer

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

OptiX OSN 7500 II/7500/3500/1500Feature Description (Packet Transport Domain) About This Document


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Symbol Description

DANGERIndicates a hazard with a high level of risk, which if notavoided, will result in death or serious injury.

WARNINGIndicates a hazard with a medium or low level of risk, whichif not avoided, could result in minor or moderate injury.

CAUTIONIndicates a potentially hazardous situation, which if notavoided, could result in equipment damage, data loss,performance degradation, or unexpected results.

TIP Indicates a tip that may help you solve a problem or savetime.

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

GUI ConventionsThe GUI conventions that may be found in this document are defined as follows.

Convention DescriptionBoldface Buttons, menus, parameters, tabs, window, and dialog titles

are in boldface. For example, click OK.> Multi-level menus are in boldface and separated by the ">"

signs. For example, choose File > Create > Folder.

Change HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.

Updates in Issue 03 (2012-11-30) Based on Product Version V200R011C02This document of the V200R011C02 version is of the third release. Compared with Issue 02,Issue 03 includes the following updates in V200R011C02SPC106:l "SNMP" is added in "RMON".l "Feature Dependency and Limitation" is modified in "Link Aggregation".

Updates in Issue 02 (2011-10-26) Based on Product Version V200R011C02This document of the V200R011C02 version is of the second release. Compared with the firstrelease, this version has the following optimized contents:



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l "Availability" is optimized for each feature.l T2PSXCSA is deleted in "Availability" of "HWECC Solution", "Hybrid Networking

Solution of DCC Transparent Transmission", "IP over DCC Solution", and "OSI over DCCSolution".

l The "PW FRR" is modified to "PW FPS".

Updates in Issue 01 (2011-07-15) Based on Product Version V200R011C02This document of the V200R011C02 version is of the first release. Compared withV200R011C01, this version has the following new or optimized contents:l The description about the OptiX OSN 3500 and OptiX OSN 7500 supporting "ATM

PWE3", "ATM QoS", and "ATM OAM" is added. "Availability" is updated.l "Feature Dependency and Limitation" is added for each feature in "Packet Features".l "Specifications" is added for each feature.l "Configuring PW FPS Protection Groups" and "Configuration Example (PW FPS)" are

added in "MPLS PW APS".

Updates in Issue 02 (2011-04-15) Based on Product Version V200R011C01This document of the V200R011C01 version is of the second release. Compared with the firstrelease, this version has the following optimized contents:l "MPLS Basics" is added in "Packet Features".l "PWE3 Basics" is added in "Packet Features".l "IMA" is added in "Packet Features".l "ETH PWE3" is added in "Packet Features".l "PW FPS Protection" is added in "MPLS PW APS".l "TDM PWE3" is added in "Packet Features".l "CES ACR" is added in "Clock Solution".

Updates in Issue 01 (2011-01-25) Based on Product Version V200R011C01This document of the V200R011C01 version is of the first release. Compared withV200R011C00, this version has the following new or optimized contents:l OptiX OSN 7500 II is added.l "ATM PWE3" is added in "Packet Features".l "ATM Traffic Management" is added in "Packet Features".l "ATM OAM" is added in "O&M Solutions".l "IGMP Snooping" is added in "Packet Features".l "Packet-based linear MSP" is added in "Packet Features".l "Protection Solutions for a 3G Bearer Network" is added.

Updates in Issue 02 (2010-11-01) Based on Product Version V200R011C00This document of the V200R011C00 version is of the second release. Compared with the firstrelease, this version has the following optimized contents:



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l "MC-LAG" is optimized.l "MPLS PW APS" is optimized.l "MS-PW" is optimized.l "ETH-OAM" is optimized.l "MPLS OAM" is optimized.

Updates in Issue 01 (2010-07-20) Based on Product Version V200R011C00This document of the V200R011C00 version is of the first release.



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Contents

About This Document.....................................................................................................................ii1 MPLS Basics...................................................................................................................................1

1.1 Introduction........................................................................................................................................................21.2 Basic Concepts...................................................................................................................................................2

1.2.1 MPLS Network Architecture.....................................................................................................................31.2.2 LSP............................................................................................................................................................31.2.3 Bearer Mode for MPLS Packets................................................................................................................51.2.4 MPLS Label...............................................................................................................................................6

1.3 Reference Standards and Protocols....................................................................................................................71.4 Availability.........................................................................................................................................................81.5 Principles............................................................................................................................................................9

2 PWE3..............................................................................................................................................122.1 PWE3 Basics....................................................................................................................................................13

2.1.1 Introduction.............................................................................................................................................132.1.2 Basic Concepts........................................................................................................................................13

2.1.2.1 PWE3 Network Reference Model..................................................................................................142.1.2.2 PWE3 Protocol Reference Model...................................................................................................152.1.2.3 PWE3 Encapsulation Format..........................................................................................................172.1.2.4 MS-PW...........................................................................................................................................182.1.2.5 VCCV.............................................................................................................................................20

2.1.3 Reference Standards and Protocols.........................................................................................................212.1.4 Availability..............................................................................................................................................212.1.5 Principles.................................................................................................................................................23

2.1.5.1 Packet Forwarding Process of SS-PW............................................................................................232.1.5.2 Packet Forwarding Process of MS-PW..........................................................................................24

2.2 ATM PWE3......................................................................................................................................................252.2.1 Introduction.............................................................................................................................................252.2.2 Basic Concepts........................................................................................................................................26

2.2.2.1 ATM N-to-One Cell Encapsulation................................................................................................262.2.2.2 ATM One-to-One Cell Encapsulation............................................................................................282.2.2.3 Number of ATM Cells Encapsulated in PWE3 Packets.................................................................302.2.2.4 QoS of ATM PWE3.......................................................................................................................31

OptiX OSN 7500 II/7500/3500/1500Feature Description (Packet Transport Domain) Contents


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2.2.3 Specifications...........................................................................................................................................312.2.4 Reference Standards and Protocols.........................................................................................................342.2.5 Availability..............................................................................................................................................342.2.6 Feature Dependency and Limitation........................................................................................................342.2.7 Principles.................................................................................................................................................382.2.8 Configuring ATM PWE3........................................................................................................................402.2.9 Configuration Example............................................................................................................................402.2.10 Relevant Alarms and Performance Events............................................................................................40

2.2.10.1 Relevant Alarms...........................................................................................................................402.2.10.2 Relevant Performance Events.......................................................................................................41

2.2.11 Parameter Description...........................................................................................................................412.2.11.1 Creating an ATM Service.............................................................................................................412.2.11.2 Connection....................................................................................................................................432.2.11.3 SDH Ports.....................................................................................................................................46

2.3 ETH PWE3.......................................................................................................................................................492.3.1 Introduction.............................................................................................................................................492.3.2 Basic Concepts........................................................................................................................................50

2.3.2.1 Format of an ETH PWE3 Packet....................................................................................................502.3.2.2 PW Encapsulation Mode................................................................................................................512.3.2.3 QoS of ETH PWE3.........................................................................................................................532.3.2.4 E-Line Services Carried on PWs....................................................................................................53

2.3.3 Reference Standards and Protocols.........................................................................................................562.3.4 Availability..............................................................................................................................................562.3.5 Feature Dependency and Limitation........................................................................................................582.3.6 Principles.................................................................................................................................................592.3.7 Configuration Example............................................................................................................................60

2.4 TDM PWE3......................................................................................................................................................602.4.1 Introduction.............................................................................................................................................602.4.2 Basic Concepts........................................................................................................................................61

2.4.2.1 E1 Frame Format............................................................................................................................612.4.2.2 SAToP............................................................................................................................................632.4.2.3 CESoPSN........................................................................................................................................662.4.2.4 Data Jitter Buffer............................................................................................................................692.4.2.5 CES Alarm Transmission...............................................................................................................702.4.2.6 Clock Recovery Schemes of TDM PWE3.....................................................................................712.4.2.7 QoS of TDM PWE3.......................................................................................................................72

2.4.3 Specifications...........................................................................................................................................732.4.4 Reference Standards and Protocols.........................................................................................................742.4.5 Availability..............................................................................................................................................742.4.6 Feature Dependency and Limitation........................................................................................................752.4.7 Principles.................................................................................................................................................78

3 ATM OAM....................................................................................................................................79



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3.1 Introduction......................................................................................................................................................803.2 Basic Concepts.................................................................................................................................................80

3.2.1 ATM OAM Levels..................................................................................................................................803.2.2 Segment and End Attributes and Directions of CPs................................................................................813.2.3 ATM OAM Functions.............................................................................................................................83

3.3 Reference Standards and Protocols..................................................................................................................853.4 Availability.......................................................................................................................................................853.5 Feature Dependency and Limitation.................................................................................................................863.6 Principles..........................................................................................................................................................87

3.6.1 AIS/RDI...................................................................................................................................................873.6.2 CC............................................................................................................................................................893.6.3 LB............................................................................................................................................................90

3.7 Configuring ATM OAM..................................................................................................................................913.7.1 Setting Segment End Attribute................................................................................................................913.7.2 Setting the CC Activation Status.............................................................................................................923.7.3 Setting Local Loopback ID......................................................................................................................933.7.4 Setting a Remote Loopback Test.............................................................................................................943.7.5 Configuring ATM Alarm Transmission..................................................................................................95

3.8 Configuration Example.....................................................................................................................................953.8.1 Example Description...............................................................................................................................953.8.2 Configuration Process..............................................................................................................................97

3.9 Relevant Alarms and Performance Events.......................................................................................................993.9.1 Relevant Alarms......................................................................................................................................993.9.2 Relevant Performance Events................................................................................................................100

3.10 Parameter Description..................................................................................................................................1003.10.1 Segment and End Attributes................................................................................................................1003.10.2 CC Activation Status...........................................................................................................................1013.10.3 Remote Loopback Test........................................................................................................................1033.10.4 LLID....................................................................................................................................................1053.10.5 Insert OAM Cell to ATM....................................................................................................................106

4 ATM Traffic Management.......................................................................................................1074.1 Introduction....................................................................................................................................................1084.2 Basic Concepts...............................................................................................................................................108

4.2.1 ATM Traffic Parameters.......................................................................................................................1084.2.2 ATM Service Categories.......................................................................................................................1104.2.3 ATM Traffic Categories........................................................................................................................1114.2.4 ATM Traffic Control Schemes..............................................................................................................112

4.3 Reference Standards and Protocols................................................................................................................1134.4 Availability.....................................................................................................................................................1134.5 Feature Dependency and Limitation...............................................................................................................1144.6 Principles........................................................................................................................................................1154.7 Configuring ATM QoS...................................................................................................................................124



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4.7.1 Configuring ATM CoS Mapping..........................................................................................................1244.7.2 Creating the ATM Policy......................................................................................................................126

4.8 QoS Configuration Case of ATM Services....................................................................................................1274.8.1 Case Description....................................................................................................................................1274.8.2 Configuration Process............................................................................................................................129

4.9 Parameter Description: ATM QoS.................................................................................................................1314.9.1 CoS Mapping.........................................................................................................................................1314.9.2 Configuring an ATM Service Class Mapping Table.............................................................................1324.9.3 ATM Policies.........................................................................................................................................133

5 IMA.............................................................................................................................................. 1395.1 Introduction....................................................................................................................................................1415.2 Basic Concepts...............................................................................................................................................142

5.2.1 IMA Protocol Reference Model............................................................................................................1425.2.2 IMA OAM Cells....................................................................................................................................1425.2.3 IMA Frame Format................................................................................................................................1455.2.4 IMA Timing...........................................................................................................................................147

5.3 Reference Standards and Protocols................................................................................................................1485.4 Availability.....................................................................................................................................................1485.5 Feature Dependency and Limitation...............................................................................................................1495.6 Principles........................................................................................................................................................1515.7 Configuration Procedure.................................................................................................................................1515.8 Configuring IMA............................................................................................................................................152

5.8.1 Binding ATM TRUNKs........................................................................................................................1525.8.2 Configuring an IMA Group...................................................................................................................1545.8.3 Configuring ATM Interface Management Attributes............................................................................1545.8.4 Querying Running Status of an IMA Group.........................................................................................1555.8.5 Querying Link Running Status of an IMA Group.................................................................................1555.8.6 Resetting an IMA Group.......................................................................................................................1565.8.7 Modifying an IMA Group.....................................................................................................................1565.8.8 Deleting an IMA Group.........................................................................................................................157

5.9 Configuration Example...................................................................................................................................1575.9.1 Network Diagram..................................................................................................................................1575.9.2 Service Planning....................................................................................................................................1585.9.3 Configuration Process............................................................................................................................159

5.10 Relevant Alarms and Performance Events...................................................................................................1605.10.1 Relevant Alarms..................................................................................................................................1605.10.2 Relevant Performance Events..............................................................................................................162

5.11 Parameter Description..................................................................................................................................1625.11.1 Configuring Bound Paths....................................................................................................................1625.11.2 IMA Group Management....................................................................................................................1645.11.3 ATM Port Management.......................................................................................................................1695.11.4 IMA Group Status...............................................................................................................................170



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5.11.5 IMA Link Status..................................................................................................................................1716 ETH-OAM...................................................................................................................................175

6.1 Introduction to ETH-OAM.............................................................................................................................1766.2 Ethernet Port OAM.........................................................................................................................................177

6.2.1 Basic Concepts......................................................................................................................................1776.2.2 Reference Standards and Protocols.......................................................................................................1786.2.3 Availability............................................................................................................................................1786.2.4 Feature Dependency and Limitation......................................................................................................1806.2.5 Principle Description.............................................................................................................................180

6.2.5.1 OAM Auto-Discovery..................................................................................................................1806.2.5.2 Link Performance Monitoring......................................................................................................1836.2.5.3 Remote Fault Detection................................................................................................................1856.2.5.4 Remote Loopback.........................................................................................................................1866.2.5.5 Selfloop Test.................................................................................................................................187

6.2.6 Networking and Application.................................................................................................................1886.2.7 Configuring Ethernet Port OAM...........................................................................................................189

6.2.7.1 Setting the MAC Address for a Board..........................................................................................1906.2.7.2 Enabling the Auto-Discovery Function of Ethernet Port OAM...................................................1916.2.7.3 Configuring the Remote Alarm Support for Link Event..............................................................1926.2.7.4 Setting OAM Error Frame Monitoring Parameters......................................................................1936.2.7.5 Configuring the Remote Loopback..............................................................................................1936.2.7.6 Enabling Self-Loop Detection......................................................................................................194

6.2.8 Relevant Alarms and Performance Events............................................................................................1956.2.8.1 Relevant Alarms...........................................................................................................................1956.2.8.2 Relevant Performance Events.......................................................................................................196

6.2.9 Parameter Description: Ethernet Port OAM..........................................................................................1966.2.9.1 OAM Parameters..........................................................................................................................1966.2.9.2 Remote OAM Parameters.............................................................................................................1976.2.9.3 OAM Error Frame Monitoring.....................................................................................................198

6.3 Ethernet Service OAM...................................................................................................................................2006.3.1 Basic Concepts......................................................................................................................................2006.3.2 Reference Standards and Protocols.......................................................................................................2036.3.3 Availability............................................................................................................................................2036.3.4 Feature Dependency and Limitation......................................................................................................2056.3.5 Principle Description.............................................................................................................................208

6.3.5.1 Continuity Check..........................................................................................................................2096.3.5.2 Loopback Test..............................................................................................................................2106.3.5.3 Link Trace Test.............................................................................................................................2106.3.5.4 Performance Detection.................................................................................................................212

6.3.6 Networking and Application.................................................................................................................2156.3.7 Configuring Ethernet Service OAM......................................................................................................217

6.3.7.1 Creating an MD............................................................................................................................217



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6.3.7.2 Creating an MA............................................................................................................................2186.3.7.3 Creating an MEP..........................................................................................................................2186.3.7.4 Adding a Remote MEP.................................................................................................................2196.3.7.5 Performing a Continuity Check....................................................................................................2196.3.7.6 Performing an LB Test.................................................................................................................2206.3.7.7 Performing an LT Test.................................................................................................................221

6.3.8 Relevant Alarms and Performance Events............................................................................................2226.3.8.1 Relevant Alarms...........................................................................................................................2226.3.8.2 Relevant Performance Events.......................................................................................................223

6.3.9 Parameter Description: Ethernet Service OAM....................................................................................2246.3.9.1 Ethernet Service OAM Management...........................................................................................2246.3.9.2 Starting LB...................................................................................................................................2266.3.9.3 Starting LT....................................................................................................................................227

7 MPLS OAM................................................................................................................................ 2307.1 Introduction to MPLS OAM...........................................................................................................................2327.2 Basic Concepts...............................................................................................................................................233

7.2.1 Packet Types..........................................................................................................................................2337.2.2 Reverse Tunnel......................................................................................................................................2357.2.3 Ping........................................................................................................................................................2357.2.4 Traceroute..............................................................................................................................................236

7.3 Reference Standards and Protocols................................................................................................................2367.4 Availability.....................................................................................................................................................2377.5 Feature Dependency and Limitation...............................................................................................................2397.6 Principles........................................................................................................................................................2417.7 Networking and Application..........................................................................................................................2447.8 Configuring the MPLS OAM.........................................................................................................................244

7.8.1 Enabling MPLS Tunnel OAM...............................................................................................................2457.8.2 Setting the MPLS Tunnel OAM Parameters.........................................................................................2457.8.3 Starting a CV/FFD for an MPLS Tunnel...............................................................................................2467.8.4 Performing an MPLS Tunnel Ping Test................................................................................................2477.8.5 Performing an MPLS Tunnel Traceroute Test......................................................................................248

7.9 Configuring PW OAM...................................................................................................................................2497.9.1 Enabling PW OAM...............................................................................................................................2497.9.2 Setting the Parameters of PW OAM......................................................................................................2497.9.3 Performing a PW Ping Test...................................................................................................................2507.9.4 Performing a PW Traceroute Test.........................................................................................................251

7.10 Configuration Case of the MPLS OAM.......................................................................................................2527.10.1 Case Description..................................................................................................................................2527.10.2 Configuration Process..........................................................................................................................254

7.11 Configuration Example of PW OAM...........................................................................................................2547.11.1 Description of the Example.................................................................................................................2547.11.2 Configuration Process..........................................................................................................................255



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7.12 Parameter Description: MPLS OAM...........................................................................................................2567.12.1 Tunnel OAM Parameters.....................................................................................................................2567.12.2 PW OAM Parameters..........................................................................................................................2597.12.3 Ping Test..............................................................................................................................................2627.12.4 Traceroute Test....................................................................................................................................262

7.13 Related Alarms and Performance Events.....................................................................................................2637.13.1 Related Alarms....................................................................................................................................2637.13.2 Related Performance Events................................................................................................................265

8 HQoS............................................................................................................................................2668.1 Introduction....................................................................................................................................................2688.2 Basic Concepts...............................................................................................................................................268

8.2.1 QoS Requirements.................................................................................................................................2688.2.2 DiffServ.................................................................................................................................................2698.2.3 Traffic Classification.............................................................................................................................2738.2.4 Queue Scheduling..................................................................................................................................2738.2.5 Committed Access Rate.........................................................................................................................2758.2.6 Congestion Management.......................................................................................................................2768.2.7 QoS Policy.............................................................................................................................................276

8.3 Specifications..................................................................................................................................................2778.4 Reference Standards and Protocols................................................................................................................2798.5 Availability.....................................................................................................................................................2798.6 Feature Dependency and Limitation...............................................................................................................2818.7 Principles........................................................................................................................................................285

8.7.1 Traffic Policing......................................................................................................................................2858.7.2 QoS Model.............................................................................................................................................288

8.8 Networking and Application..........................................................................................................................2898.9 Configuring the HQoS....................................................................................................................................290

8.9.1 HQoS Configuration Flow.....................................................................................................................2908.9.2 Creating the DiffServ Domain...............................................................................................................2938.9.3 Creating the Port WRED Policy (OptiX OSN 1500)............................................................................2948.9.4 Creating a Service WRED Policy..........................................................................................................2948.9.5 Creating the WFQ Scheduling Policy...................................................................................................2958.9.6 Creating the Port Policy (OptiX OSN 3500/7500/7500 II)...................................................................2968.9.7 Creating the Port Policy (OptiX OSN 1500).........................................................................................2978.9.8 Creating the V-UNI Ingress Policy (OptiX OSN 3500/7500/7500 II)..................................................2988.9.9 Creating the V-UNI Ingress Policy (OptiX OSN 1500)........................................................................2998.9.10 Creating a V-UNI Egress Policy.........................................................................................................3008.9.11 Creating the PW Policy (OptiX OSN 3500/7500/7500 II)..................................................................3018.9.12 Creating the QinQ Policy....................................................................................................................3038.9.13 Creating the CAR Policy (OptiX OSN 1500).....................................................................................304

8.10 Configuration Example.................................................................................................................................3048.10.1 Description of the Example.................................................................................................................304



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8.10.2 Configuration Process..........................................................................................................................3068.11 Troubleshooting............................................................................................................................................3108.12 Parameter Description: HQoS......................................................................................................................313

8.12.1 Diffserv Domain Management............................................................................................................3138.12.2 Service WRED Policy.........................................................................................................................3158.12.3 WFQ Schedule Policy.........................................................................................................................3178.12.4 Port Policy...........................................................................................................................................3208.12.5 V-UNI Ingress Policy..........................................................................................................................3258.12.6 V-UNI Egress Policy...........................................................................................................................3318.12.7 PW Policy............................................................................................................................................3348.12.8 QinQ Policy.........................................................................................................................................337

8.13 Relevant Alarms and Performance Events...................................................................................................3408.13.1 Relevant Alarms..................................................................................................................................3408.13.2 Relevant Performance Events..............................................................................................................340

9 IGMP Snooping.........................................................................................................................3419.1 Introduction to IGMP Snooping.....................................................................................................................3439.2 Basic Concepts...............................................................................................................................................344

9.2.1 Multicast Protocol..................................................................................................................................3449.2.2 IGMP.....................................................................................................................................................3449.2.3 IGMP Snooping.....................................................................................................................................345

9.3 Reference Standards and Protocols................................................................................................................3469.4 Availability.....................................................................................................................................................3479.5 Feature Dependency and Limitation...............................................................................................................3489.6 Principle Description......................................................................................................................................3499.7 Networking and Application..........................................................................................................................3509.8 Configuring the IGMP Snooping...................................................................................................................351

9.8.1 Setting the IGMP Snooping Parameters................................................................................................3519.8.2 Configuring the Route Management.....................................................................................................3529.8.3 Configuring the Route Member Port Management...............................................................................3539.8.4 Configuring the Packet Statistics...........................................................................................................353

9.9 Configuration Example...................................................................................................................................3549.9.1 Network Diagram..................................................................................................................................3559.9.2 Service Planning....................................................................................................................................3559.9.3 Configuration Process............................................................................................................................357

9.10 Relevant Alarms and Performance Events...................................................................................................3589.11 Parameter Description: IGMP Snooping......................................................................................................358

9.11.1 Protocol Configuration........................................................................................................................3589.11.2 Router Management............................................................................................................................3599.11.3 Route Member Port Management........................................................................................................3609.11.4 Packet Statistics...................................................................................................................................361

10 Link Aggregation.....................................................................................................................36310.1 Introduction..................................................................................................................................................365



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10.2 Basic Concepts.............................................................................................................................................36510.2.1 LACP...................................................................................................................................................36510.2.2 Link Aggregation Types......................................................................................................................36610.2.3 Load Sharing Modes............................................................................................................................36710.2.4 Port Types............................................................................................................................................36810.2.5 Priority.................................................................................................................................................368

10.3 Specifications................................................................................................................................................36910.4 Reference Standards and Protocols..............................................................................................................37010.5 Availability...................................................................................................................................................37110.6 Feature Dependency and Limitation.............................................................................................................37310.7 Principles......................................................................................................................................................375

10.7.1 LAG Establishment Process................................................................................................................37510.7.2 LAG Link Switchover and Reversion.................................................................................................377

10.8 Configuring a LAG.......................................................................................................................................37810.8.1 Configuration Procedure......................................................................................................................37810.8.2 Creating a LAG...................................................................................................................................38110.8.3 Setting Port Priorities...........................................................................................................................382

10.9 Maintaining a LAG.......................................................................................................................................38310.9.1 Querying LAG Configuration and Running Information....................................................................38310.9.2 Querying LAG Information and LACPDU Statistics..........................................................................38410.9.3 Changing LAG Configurations...........................................................................................................38410.9.4 Deleting a LAG...................................................................................................................................386

10.10 Configuration Example (LAG Configured to Increase Ethernet Link Bandwidth)...................................38710.10.1 Example Description.........................................................................................................................38710.10.2 Configuration Process........................................................................................................................389

10.11 Configuration Example (LAG Configured to Provide Link Protection)....................................................39010.11.1 Example Description.........................................................................................................................39010.11.2 Configuration Process........................................................................................................................391

10.12 Verifying a LAG.........................................................................................................................................39210.13 Troubleshooting..........................................................................................................................................39410.14 Relevant Alarms and Performance Events.................................................................................................396

10.14.1 Relevant Alarms................................................................................................................................39610.14.2 Relevant Performance Events............................................................................................................397

10.15 Relevant Parameters...................................................................................................................................39710.15.1 LAG Management_LAG Creation....................................................................................................39710.15.2 LAG Management_Port Priority Setting...........................................................................................40310.15.3 LAG Management_LAG Information Query....................................................................................404

11 LPT..............................................................................................................................................40711.1 Introduction..................................................................................................................................................40911.2 Basic Concepts.............................................................................................................................................40911.3 Specifications................................................................................................................................................41011.4 Reference Standards and Protocols..............................................................................................................411



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11.5 Availability...................................................................................................................................................41111.6 Feature Dependency and Limitation.............................................................................................................41211.7 Principles......................................................................................................................................................413

11.7.1 LPT State Transition............................................................................................................................41411.7.2 Point-to-Point LPT Switching.............................................................................................................41511.7.3 Point-to-Multipoint LPT Switching.....................................................................................................417

11.8 Configuring LPT...........................................................................................................................................42211.8.1 Configuration Procedure......................................................................................................................42211.8.2 Configuring Point-to-Point LPT..........................................................................................................42511.8.3 Configuring Point-to-Multipoint LPT.................................................................................................425

11.9 Maintaining LPT Configurations..................................................................................................................42711.9.1 Querying Point-to-Point LPT Configurations.....................................................................................42711.9.2 Changing Point-to-Point LPT Attributes.............................................................................................42711.9.3 Deleting Point-to-Point LPT Configurations.......................................................................................42811.9.4 Querying Point-to-Multipoint LPT Configurations.............................................................................42811.9.5 Changing Primary and Secondary Points for Point-to-Multipoint LPT..............................................42911.9.6 Changing Point-to-Multipoint LPT Attributes....................................................................................43011.9.7 Deleting Point-to-Multipoint LPT Configurations..............................................................................431

11.10 Configuration Example (LPT Based on an E-Line Service Exclusively Occupying a UNI Port).............43111.10.1 Example Description.........................................................................................................................43211.10.2 Configuration Process........................................................................................................................433

11.11 Configuration Example (LPT Based on Ethernet Services Sharing a UNI Port).......................................43311.11.1 Example Description.........................................................................................................................43411.11.2 Configuration Process........................................................................................................................435

11.12 Verifying LPT.............................................................................................................................................43611.13 Troubleshooting..........................................................................................................................................43811.14 Relevant Alarms and Performance Events.................................................................................................439


11.15 Relevant Parameters...................................................................................................................................44011.15.1 LPT Management_Point-to-Point LPT.............................................................................................44011.15.2 LPT Management_Point-to-Multipoint LPT.....................................................................................444

12 MC-LAG....................................................................................................................................44612.1 Introduction..................................................................................................................................................44812.2 Basic Concepts.............................................................................................................................................44912.3 Specifications................................................................................................................................................45012.4 Reference Standards and Protocols..............................................................................................................45012.5 Availability...................................................................................................................................................45112.6 Feature Dependency and Limitation.............................................................................................................45212.7 Principles......................................................................................................................................................45312.8 Configuring MC-LAG..................................................................................................................................456

12.8.1 Configuring Multi-chassis Synchronous Communication Tunnel......................................................456



xv

12.8.2 Configuring MC-LAGs.......................................................................................................................45712.9 Configuration Example.................................................................................................................................458

12.9.1 Description of the Example.................................................................................................................45812.9.2 Configuration Process..........................................................................................................................460

12.10 Relevant Alarms and Performance Events.................................................................................................46312.10.1 Relevant Alarms................................................................................................................................46312.10.2 Relevant Performance Events............................................................................................................463

12.11 Parameter Description: MC-LAG..............................................................................................................46312.11.1 Synchronization Protocol Management.............................................................................................46312.11.2 Link Aggregation Group Management..............................................................................................464

13 MPLS PW APS.........................................................................................................................46813.1 Introduction..................................................................................................................................................47013.2 Basic Concepts.............................................................................................................................................47213.3 Specifications................................................................................................................................................47313.4 Reference Standards and Protocols..............................................................................................................47513.5 Availability...................................................................................................................................................47513.6 Feature Dependency and Limitation.............................................................................................................47713.7 Principles......................................................................................................................................................479

13.7.1 State Model..........................................................................................................................................47913.7.2 PW APS 1+1 Protection......................................................................................................................48013.7.3 PW APS 1:1 Protection.......................................................................................................................48113.7.4 PW FPS Protection..............................................................................................................................48213.7.5 Switching Condition............................................................................................................................48413.7.6 Switching Impact.................................................................................................................................486

13.8 Configuring PW APS...................................................................................................................................48713.8.1 Configuring PW APS Protection Groups............................................................................................48713.8.2 Configuring Slave Protection Pairs of PW APS..................................................................................49213.8.3 Starting the APS Protocol....................................................................................................................49513.8.4 Performing External Switching of PW APS........................................................................................49513.8.5 Configuring PW FPS Protection Groups.............................................................................................496

13.9 Configuration Example (PW APS)...............................................................................................................50013.9.1 Description of the Example.................................................................................................................50013.9.2 PW APS Configuration Process..........................................................................................................50813.9.3 PW APS Slave Protection Pair Configuration Process.......................................................................51213.9.4 Verifying PW APS..............................................................................................................................516

13.10 Configuration Example (PW FPS).............................................................................................................51713.10.1 Description of the Example...............................................................................................................51713.10.2 PW FPS Configuration Process.........................................................................................................52313.10.3 Verifying PW FPS.............................................................................................................................528

13.11 Relevant Alarms and Performance Events.................................................................................................52913.11.1 Relevant Alarms................................................................................................................................52913.11.2 Relevant Performance Events............................................................................................................530



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13.12 Parameter Description: MPLS PW APS....................................................................................................53013.12.1 Parameter Description: PW APS ......................................................................................................53013.12.2 Parameter Description: MS-PW........................................................................................................534

14 MPLS Tunnel APS..................................................................................................................53614.1 Introduction to MPLS Tunnel APS..............................................................................................................53814.2 Basic Concepts.............................................................................................................................................53814.3 Specifications................................................................................................................................................53914.4 Reference Standards and Protocols..............................................................................................................54014.5 Availability...................................................................................................................................................54114.6 Feature Dependency and Limitation.............................................................................................................54214.7 Principles......................................................................................................................................................544

14.7.1 Single-Ended Switching......................................................................................................................54414.7.2 Dual-Ended Switching.........................................................................................................................54514.7.3 Protection Attributes............................................................................................................................54614.7.4 Switching Rules...................................................................................................................................54614.7.5 Switching Impact.................................................................................................................................548

14.8 Networking and Application........................................................................................................................54814.9 Configuring an MPLS Tunnel APS Protection Group.................................................................................54914.10 MPLS Tunnel APS Configuration Case.....................................................................................................551

14.10.1 Case Description................................................................................................................................55114.10.2 Configuration Flow............................................................................................................................553

14.11 Verifying the MPLS Tunnel APS...............................................................................................................55414.12 Troubleshooting..........................................................................................................................................55514.13 Relevant Alarms and Performance Events.................................................................................................558


14.14 Parameter Description: MPLS Tunnel APS...............................................................................................56014.14.1 Parameters for Configuring MPLS Tunnel APS (on a Per-NE Basis)..............................................56014.14.2 Parameters for Configuring MPLS Tunnel APS (in End-to-End Mode)..........................................561

15 MS-PW.......................................................................................................................................56515.1 Introduction..................................................................................................................................................56715.2 Basic Concepts.............................................................................................................................................56815.3 Reference Standards and Protocols..............................................................................................................56915.4 Availability...................................................................................................................................................56915.5 Feature Dependency and Limitation.............................................................................................................57015.6 Principles......................................................................................................................................................57115.7 Configuring MS-PWs...................................................................................................................................57215.8 Configuration Example.................................................................................................................................574

15.8.1 Description of the Example.................................................................................................................57415.8.2 Configuration Process..........................................................................................................................576

15.9 Verifying MS-PW.........................................................................................................................................57815.10 Relevant Alarms and Performance Events.................................................................................................581



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15.11 MS-PW Parameters....................................................................................................................................58116 Packet-based linear MSP........................................................................................................586

16.1 Introduction to Packet-based linear MSP.....................................................................................................58816.2 Basic Concepts.............................................................................................................................................58916.3 Specifications................................................................................................................................................59316.4 Reference Standards and Protocols..............................................................................................................59416.5 Availability...................................................................................................................................................59416.6 Feature Dependency and Limitation.............................................................................................................59516.7 Principles......................................................................................................................................................59516.8 Networking and Application........................................................................................................................59816.9 Creating Packet-Based Linear MSP.............................................................................................................59916.10 Verifying Packet-Based Linear MSP.........................................................................................................60116.11 Relevant Alarms and Performance Events.................................................................................................602


17 Power Consumption Control................................................................................................60417.1 Overview......................................................................................................................................................60517.2 Availability...................................................................................................................................................60517.3 Principles......................................................................................................................................................60617.4 Setting the NE Power Consumption Threshold............................................................................................60717.5 Querying the Power Consumption of NEs and Boards................................................................................60817.6 Relevant Alarms and Performance Events...................................................................................................608

17.6.1 Relevant Alarms..................................................................................................................................60817.6.2 Relevant Performance Events..............................................................................................................609

18 Protection Solutions for a 3G Bearer Network..................................................................61018.1 RNC Dual-Homing.......................................................................................................................................611

18.1.1 Scenario Description..........................................

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