Huawei Quidway netengine80e User manual

HUAWEI NetEngine80E/40E Router

V600R003C00

Configuration Guide - Reliability

Issue 02

Date 2011-09-10

HUAWEI TECHNOLOGIES CO., LTD.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Huawei Technologies Co., Ltd.

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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.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within the

purchase 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 representations

of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

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About This Document

Purpose

With regard to functions, configuration methods, and maintenance and configuration examples,

this document describes the reliability configurations, which includes the reliability overview,

interface backup configuration, APS Configuration, VRRP configuration, BFD configuration,

GR Configuration, NSR Configuration, Ethernet OAM Configuration, Y.1731 configuration,

MPLS-TP OAM configuration, Multi-Device Backup configuration.

NOTE

lThis document takes interface numbers and link types of the NE40E-X8 as an example. In working

situations, the actual interface numbers and link types may be different from those used in this

document.

lIn NE80E/40E series (except for the NE40E-X1/X2), line processing boards are called Line Processing

Units (LPUs) and switching fabric boards are called Switching Fabric Units (SFUs). The NE40E- X1/

X2 has no LPU and SFU, and packet switching and forwarding are centrally performed by the Network

Processing Unit (NPU).

Related Versions

The following table lists the product versions related to this document.

Product Name Version

HUAWEI NetEngine80E/40E

Router

V600R003C00

Intended Audience

This document is intended for:

lCommissioning Engineer

lData Configuration Engineer

lNetwork Monitoring Engineer

lSystem Maintenance Engineer

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Configuration Guide - Reliability About This Document

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Symbol Conventions

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

Symbol Description

DANGER

Alerts you to a high risk hazard that could, if not avoided,

result in serious injury or death.

WARNING

Alerts you to a medium or low risk hazard that could, if

not avoided, result in moderate or minor injury.

CAUTION

Alerts you to a potentially hazardous situation that could,

if not avoided, result in equipment damage, data loss,

performance deterioration, or unanticipated results.

TIP

Provides a tip that may help you solve a problem or save

time.

NOTE

Provides additional information to emphasize or

supplement important points in the main text.

Command Conventions (Optional)

The command conventions that may be found in this document are defined as follows.

Convention Description

Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italics.

[ ] Items (keywords or arguments) in brackets [ ] are optional.

{ x | y | ... } Optional items are grouped in braces and separated by

vertical bars. One item is selected.

[ x | y | ... ] Optional items are grouped in brackets and separated by

vertical bars. One item is selected or no item is selected.

{ x | y | ... }*Optional items are grouped in braces and separated by

vertical bars. A minimum of one item or a maximum of all

items can be selected.

[ x | y | ... ]*Optional items are grouped in brackets and separated by

vertical bars. Several items or no item can be selected.

&<1-n> The parameter before the & sign can be repeated 1 to n times.

# A line starting with the # sign is comments.

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iii

Change History

Changes in Issue 02 (2011-09-10)

Second commercial release.

lAPS Configuration

–The feature of APS 1+1 bidirectional protection switchover is supported so that the

command keyword and description about this feature is added in 3.2.4 (Optional)

Configuring a Working Mode for an APS Group and 3.3.4 Configuring a Working

Mode for an APS Group.

–The feature of low-priority signal failure code for a switching request carried in the K

byte on the protect interface is supported so that the command keyword and description

about this feature is added in 3.2.3 Configuring a Protection Interface in an APS

Group and 3.3.3 Configuring a Protection Interface in an APS Group.

lY.1731 Configuration

–9.10.12 Example for Configuring Y.1731 Statistics Based on QoS Simple Traffic

Classification is added in this chapter.

Changes between document issues are cumulative. The latest document issue contains all the

changes made in earlier issues.

Changes in Issue 01 (2011-06-30)

Initial commercial release.

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Contents

About This Document.....................................................................................................................ii

1 Reliability Overview.....................................................................................................................1

1.1 Introduction........................................................................................................................................................2

1.1.1 Overview of Reliability Technologies.......................................................................................................2

1.1.2 Indices of Reliability.................................................................................................................................2

1.1.3 Levels of Reliability Requirements...........................................................................................................3

1.1.4 Principles for High-Reliablity IP Networking...........................................................................................3

1.2 Reliability Technologies for IP Networks..........................................................................................................4

1.2.1 Failure Detection for IP Networks.............................................................................................................4

1.2.2 Protection Switching for IP Networks.......................................................................................................4

1.3 Reliability Technologies Supported by the NE80E/40E....................................................................................5

1.3.1 FRR (Fast ReRoute)..................................................................................................................................5

1.3.2 OAM (Operation Administration & Maintenance)...................................................................................7

1.3.3 VRRP (Virtual Router Redundancy Protocol)..........................................................................................7

1.3.4 BFD (Bidirectional Forwarding Detection)...............................................................................................8

1.4 Networking of Reliability over an IP Network..................................................................................................8

1.4.1 Failures on Intermediate Nodes or on the Link Between PEs - LDP FRR/TE FRR.................................8

1.4.2 Link Failure During Transmission............................................................................................................9

1.4.3 Failure on the Remote PE - VPN FRR....................................................................................................11

1.4.4 Failure of Downlink Interface on the PE - IP FRR.................................................................................12

2 Interface Backup Configuration...............................................................................................13

2.1 Introduction of Interface Backup......................................................................................................................14

2.1.1 Interface Backup Overview.....................................................................................................................14

2.1.2 Characteristics of the Interface Backup Supported by the NE80E/40E..................................................15

2.2 Configuring the Active/Standby Interface Backup...........................................................................................16

2.2.1 Establishing the Configuration Task.......................................................................................................16

2.2.2 Configuring a Standby Interface..............................................................................................................17

2.2.3 Configuring the Active/Standby Switchover Delay................................................................................18

2.2.4 Checking the Configuration.....................................................................................................................18

2.3 Configuring the Load Balancing Interface Backup..........................................................................................19

2.3.1 Establishing the Configuration Task.......................................................................................................19

2.3.2 Configuring a Standby Interface..............................................................................................................20

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2.3.3 Configuring the Percentage Thresholds for Load Balancing..................................................................21

2.3.4 (Optional) Configuring the Bandwidth and Flow Check Interval for the Active Interface.....................21

2.3.5 Checking the Configuration.....................................................................................................................22

2.4 Maintaining the Interface Backup....................................................................................................................23

2.4.1 Monitoring Working Status of the Interface Backup..............................................................................23

2.5 Configuration Examples...................................................................................................................................23

2.5.1 Example for Configuring the Active/Standby Mode of Multiple Interfaces...........................................23

2.5.2 Example for Configuring Load Balancing on Multiple Standby Interfaces............................................27

3 APS Configuration......................................................................................................................31

3.1 APS Overview..................................................................................................................................................32

3.1.1 APS Overview.........................................................................................................................................32

3.1.2 APS Features Supported by the NE80E/40E...........................................................................................34

3.2 Configuring Single-Device APS......................................................................................................................35

3.2.1 Establishing the Configuration Task.......................................................................................................35

3.2.2 Configuring a Working Interface in an APS Group................................................................................35

3.2.3 Configuring a Protection Interface in an APS Group..............................................................................36

3.2.4 (Optional) Configuring a Working Mode for an APS Group..................................................................37

3.2.5 (Optional) Configuring a Switching Mode for an APS Group................................................................38

3.2.6 (Optional) Setting the WTR Time for an APS Group.............................................................................39

3.2.7 Adding Members of an APS Group to a Trunk.......................................................................................39

3.2.8 Checking the Configuration.....................................................................................................................40

3.3 Configuring E-APS...........................................................................................................................................41

3.3.1 Establishing the Configuration Task.......................................................................................................41

3.3.2 Configuring a Working Interface in an APS Group................................................................................42

3.3.3 Configuring a Protection Interface in an APS Group..............................................................................43

3.3.4 Configuring a Working Mode for an APS Group...................................................................................44

3.3.5 (Optional) Configuring a Switching Mode for an APS Group................................................................45

3.3.6 (Optional) Setting the Interval for Sending APS Negotiation Messages and the Hold Time of an APS

Connection........................................................................................................................................................45

3.3.7 (Optional) Configuring the Authentication String for a PGP Message...................................................46

3.3.8 (Optional) Setting the WTR Time for an APS Group.............................................................................47

3.3.9 Adding Members of an APS Group to a Trunk.......................................................................................48

3.3.10 Checking the Configuration...................................................................................................................48

3.4 Configuration Examples...................................................................................................................................49

3.4.1 Example for Configuring TDM on the CPOS interfaces Configured with APS.....................................49

3.4.2 Example for Configuring APS on a CPOS-Trunk...................................................................................56

3.4.3 Example for Associating PW Redundancy with E-APS Working in 1:1 Mode.....................................59

4 VRRP Configuration...................................................................................................................73

4.1 VRRP Introduction...........................................................................................................................................75

4.1.1 VRRP Overview......................................................................................................................................75

4.1.2 VRRP Features Supported by the NE80E/40E........................................................................................75

4.2 Configuring the VRRP Backup Group.............................................................................................................79

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4.2.1 Establishing the Configuration Task.......................................................................................................79

4.2.2 Creating a Backup Group and Configuring a Virtual IP Address...........................................................80

4.2.3 Configuring Priorities for Interfaces Where a Backup Group Is Created...............................................82

4.2.4 Checking the Configuration.....................................................................................................................84

4.3 Configuring VRRP to Track the Status of an Interface....................................................................................85

4.3.1 Establishing the Configuration Task.......................................................................................................85

4.3.2 Configuring VRRP to Track the Status of an Interface...........................................................................86

4.3.3 Checking the Configuration.....................................................................................................................88

4.4 Configuring a Fast VRRP Switchover (in Common Mode).............................................................................89

4.4.1 Establishing the Configuration Task.......................................................................................................89

4.4.2 Tracking the BFD Session Status............................................................................................................90

4.4.3 Tracking the BFD Session Status............................................................................................................93

4.4.4 Tracking the Status of the SPU Group....................................................................................................95

4.4.5 Checking the Configuration.....................................................................................................................96

4.5 Configuring VRRP Fast Switchover (Using BFD Sampling)..........................................................................97

4.5.1 Establishing the Configuration Task.......................................................................................................97

4.5.2 Binding the Service VRRP Backup Group to the mVRRP Backup Group.............................................99

4.5.3 Configuring an mVRRP Backup Group to Track the BFD Session Status...........................................100

4.5.4 Setting the Threshold for VRRP Fast Switchover.................................................................................101

4.5.5 Enabling the Association Between the mVRRP Backup Group Status and the Route.........................102

4.5.6 Checking the Configuration...................................................................................................................103

4.6 Configuring Ignorance of the Down of an Interface Where the mVRRP Backup Group Is Configured.......104

4.6.1 Establishing the Configuration Task.....................................................................................................104

4.6.2 Configuring the mVRRP Backup Group...............................................................................................106

4.6.3 Binding the Service VRRP Backup Group to the mVRRP Backup Group...........................................107

4.6.4 Configuring an mVRRP Backup Group to Track the BFD Session Status...........................................107

4.6.5 Setting the Threshold for VRRP Fast Switchover.................................................................................109

4.6.6 Enabling the Association Between the mVRRP Backup Group Status and the Route.........................109

4.6.7 Checking the Configuration...................................................................................................................110

4.7 Configuring VRRP Applications in VLANIF................................................................................................111

4.7.1 Establishing the Configuration Task.....................................................................................................111

4.7.2 Configuring VRRP on VLANIF............................................................................................................112

4.7.3 (Optional) Configuring the Sending Mode of VRRP Packets in Super-VLAN....................................112

4.7.4 Checking the Configuration...................................................................................................................113

4.8 Configuring VRRP Security...........................................................................................................................114

4.8.1 Establishing the Configuration Task.....................................................................................................114

4.8.2 Configuring the Authentication Mode of VRRP Packets......................................................................115

4.8.3 Checking the Configuration...................................................................................................................116

4.9 Configuring VRRP Smooth Switching...........................................................................................................116

4.9.1 Establishing the Configuration Task.....................................................................................................116

4.9.2 Configuring VRRP Smooth Switching..................................................................................................117

4.9.3 Checking the Configuration...................................................................................................................118

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4.10 Adjusting and Optimizing VRRP.................................................................................................................119

4.10.1 Establishing the Configuration Task...................................................................................................119

4.10.2 Configuring the Interval for Sending VRRP Advertising Messages...................................................120

4.10.3 Configuring the Preemption Delay Time of Backup Group Router s.................................................121

4.10.4 Enabling the Reachability Test of the Virtual IP Address...................................................................123

4.10.5 Disabling a Router from Checking Number of Hops in VRRP Packets.............................................123

4.10.6 Configuring the Timeout Time of Sending Gratuitous ARP Packets by the Master router................124

4.10.7 Checking the Configuration.................................................................................................................125

4.11 Configuring mVRRP Backup Groups..........................................................................................................126

4.11.1 Establishing the Configuration Task...................................................................................................126

4.11.2 Configuring mVRRP Backup Group...................................................................................................128

4.11.3 (Optional) Configuring Member VRRP Backup Groups and Binding them to the mVRRP Backup Group

........................................................................................................................................................................129

4.11.4 (Optional) Binding Member Interface and Management Backup Group............................................130

4.11.5 (Optional) Binding the PW to the mVRRP Backup Group Through VPLS.......................................131

4.11.6 Checking the Configuration.................................................................................................................131

4.12 Configuring VRRP Version Upgrade...........................................................................................................132

4.12.1 Establishing the Configuration Task...................................................................................................133

4.12.2 Configuring VRRPv3..........................................................................................................................133

4.12.3 Checking the Configuration.................................................................................................................134

4.13 Maintaining VRRP.......................................................................................................................................134

4.13.1 Monitoring the VRRP Running...........................................................................................................134

4.14 Configuration Examples...............................................................................................................................135

4.14.1 Example for Configuring VRRP in Master/Backup Mode.................................................................135

4.14.2 Example for Configuring VRRP in Load Balancing Mode................................................................139

4.14.3 Example for Configuring the Multi-Instance VRRP...........................................................................143

4.14.4 Example for Configuring VRRP Fast Switchover..............................................................................149

4.14.5 Example for Configuring VRRP Fast Switchover (Using One-Arm Echo Function)........................153

4.14.6 Example for Configuring VRRP Fast Switchover (Using BFD Sampling)........................................160

4.14.7 Example for Configuring Ignorance of the Down of an Interface Where the mVRRP Backup Group Is

Configured......................................................................................................................................................179

4.14.8 Example for Configuring VRRP on VLANIF Interfaces....................................................................199

4.14.9 Example for Configuring VRRP on Sub-interfaces for QinQ VLAN Tag Termination to Reduce the

Number of Gratuitous ARP Packets to Be Sent.............................................................................................206

4.14.10 Example for Configuring VRRP for IPv6 on Sub-interfaces for QinQ VLAN Tag Termination to

Reduce the Number of ND Packets to Be Sent..............................................................................................214

4.14.11 Example for Configuring a VRRP6 Backup Group in Master/Backup Mode..................................222

4.14.12 Example for Configuring VRRP6 Backup Groups in Load Balancing Mode..................................227

5 BFD Configuration....................................................................................................................232

5.1 Introduction to BFD........................................................................................................................................234

5.1.1 BFD Overview.......................................................................................................................................234

5.1.2 BFD Features Supported by the NE80E/40E........................................................................................234

5.2 Configuring Single-hop BFD.........................................................................................................................242

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5.2.1 Establishing the Configuration Task.....................................................................................................242

5.2.2 Enabling BFD Globally.........................................................................................................................242

5.2.3 Setting Up a BFD Session.....................................................................................................................243

5.2.4 Checking the Configuration...................................................................................................................244

5.3 Configuring the BFD Passive Echo Function.................................................................................................246

5.3.1 Establishing the Configuration Task.....................................................................................................246

5.3.2 Configuring the BFD Passive Echo Function........................................................................................247

5.3.3 Checking the Configuration...................................................................................................................247

5.4 Configuring the Association Between the BFD Status and the Interface Status............................................248

5.4.1 Establishing the Configuration Task.....................................................................................................248

5.4.2 Configuring the Association Between BFD Status and Interface Status...............................................249

5.4.3 Checking the Configuration...................................................................................................................250

5.5 Configuring the Association Between the BFD Status and the Sub-Interface Status....................................251

5.5.1 Establishing the Configuration Task.....................................................................................................252

5.5.2 Configuring the Association Between BFD Status and Sub-Interface Status.......................................252

5.5.3 Checking the Configuration...................................................................................................................253

5.6 Configuring the BFD to Modify the PST.......................................................................................................254

5.6.1 Establishing the Configuration Task.....................................................................................................254

5.6.2 Permitting the BFD to Modify the PST.................................................................................................255

5.6.3 Checking the Configuration...................................................................................................................256

5.7 Configuring the Multi-Hop BFD....................................................................................................................257

5.7.1 Establishing the Configuration Task.....................................................................................................257

5.7.2 Enabling BFD Globally.........................................................................................................................258

5.7.3 Setting Up a BFD Session.....................................................................................................................258

5.7.4 Checking the Configuration...................................................................................................................259

5.8 Configuring a BFD Session with Automatically Negotiated Discriminators.................................................261

5.8.1 Establishing the Configuration Task.....................................................................................................261

5.8.2 Enabling BFD Globally.........................................................................................................................261

5.8.3 Configuring a BFD Session with Automatically Negotiated Discriminators........................................262

5.8.4 Checking the Configuration...................................................................................................................263

5.9 Configuring the Delay of a BFD Session to Go Up.......................................................................................264

5.9.1 Establishing the Configuration Task.....................................................................................................264

5.9.2 Configuring the Delay of a BFD Session to Go Up..............................................................................264

5.9.3 Checking the Configuration...................................................................................................................265

5.10 Configuring a BFD Session with the One-Arm Echo Function...................................................................266

5.10.1 Establishing the Configuration Task...................................................................................................266

5.10.2 Enable BFD Globally..........................................................................................................................267

5.10.3 Establishing a BFD Session.................................................................................................................267

5.10.4 Checking the Configuration.................................................................................................................268

5.11 Adjusting BFD Parameters...........................................................................................................................269

5.11.1 Establishing the Configuration Task...................................................................................................269

5.11.2 Modifying the Detection Time............................................................................................................270

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5.11.3 Configuring the BFD WTR.................................................................................................................270

5.11.4 Adding the Description of a BFD Session...........................................................................................271

5.11.5 Checking the Configuration.................................................................................................................272

5.12 Globally Configuring the Destination Port Number for the Multi-Hop BFD Control Packet.....................273

5.12.1 Establishing the Configuration Task...................................................................................................273

5.12.2 Globally Configuring the Destination Port Number............................................................................274

5.12.3 Checking the Configuration.................................................................................................................275

5.13 Configuring the TTL Globally.....................................................................................................................276

5.13.1 Establishing the Configuration Task...................................................................................................276

5.13.2 Configuring the TTL Globally............................................................................................................276

5.13.3 Checking the Configuration.................................................................................................................277

5.14 Configuring the Interval at Which Trap Messages Are Sent........................................................................278

5.14.1 Establishing the Configuration Task...................................................................................................278

5.14.2 Configuring the Interval at Which Trap Messages Are Sent...............................................................278

5.14.3 Checking the Configuration.................................................................................................................279

5.15 Maintaining BFD..........................................................................................................................................279

5.15.1 Clearing BFD Statistics.......................................................................................................................279

5.15.2 Monitoring BFD Status.......................................................................................................................280

5.16 Configuration Examples...............................................................................................................................281

5.16.1 Example for Configuring Single-hop BFD for a Layer 3 Physical Link.............................................281

5.16.2 Example for Configuring Single-hop BFD for an IP-Trunk Member Link........................................284

5.16.3 Example for Configuring Singe-hop BFD for an IP-Trunk Link........................................................289

5.16.4 Example for Configuring Single-hop BFD for a Layer 3 Eth-Trunk Member Link...........................295

5.16.5 Example for Configuring Single-hop BFD for a Layer 3 Eth-Trunk Link..........................................300

5.16.6 Example for Configuring Single-hop BFD for VLANIF Interfaces...................................................306

5.16.7 Example for Configuring the Association Between the BFD Status and the Interface Status............310

5.16.8 Example for Configuring the Association Between the BFD Status and the Sub-interface Status.....314

5.16.9 Example for Configuring Multi-Hop BFD..........................................................................................319

5.16.10 Example for Configuring the BFD Demand Mode...........................................................................322

5.16.11 Example for Configuring a BFD Session with the One-Arm Echo Function...................................325

5.16.12 Example for Configuring BFD for VPN Routes...............................................................................327

5.16.13 Example for Configuring Sub-interfaces for Dot1q VLAN Tag Termination to Support BFD.......332

5.16.14 Example for Configuring Sub-interfaces for QinQ VLAN Tag Termination to Support BFD.........339

5.16.15 Example for Configuring Single-hop BFD6 for a Layer 3 Physical Link.........................................347

5.16.16 Example for Configuring Multi-hop BFD6.......................................................................................350

6 GR Configuration......................................................................................................................354

6.1 GR Introduction..............................................................................................................................................355

6.1.1 HA Overview.........................................................................................................................................355

6.1.2 GR Features Supported in the NE80E/40E...........................................................................................362

6.2 Configuring the System-Level GR.................................................................................................................362

6.2.1 Establishing the Configuration Task.....................................................................................................363

6.2.2 (Optional) Configuring the Default Slot Number for the SMB.............................................................363

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6.2.3 Enabling the Automatic Synchronization of the AMB/SMB Configuration........................................364

6.2.4 Enabling the Force AMB/SMB Switchover..........................................................................................364

6.2.5 (Optional) Restarting the SMB..............................................................................................................365

6.2.6 Checking the Configuration...................................................................................................................365

6.3 Maintaining HA..............................................................................................................................................366

6.3.1 Monitoring the Running of HA.............................................................................................................366

6.4 Configuration Examples.................................................................................................................................366

6.4.1 Example for Configuring the System-Level GR...................................................................................366

7 NSR Configuration................................................................................................................... 371

7.1 NSR Overview................................................................................................................................................372

7.1.1 Introduction to NSR...............................................................................................................................372

7.1.2 NSR Features Supported by the NE80E/40E........................................................................................374

7.2 Configuring NSR............................................................................................................................................375

7.2.1 Establishing the Configuration Task.....................................................................................................375

7.2.2 Enabling NSR........................................................................................................................................376

7.2.3 Checking the Configuration...................................................................................................................376

8 Ethernet OAM Configuration.................................................................................................377

8.1 Ethernet OAM Overview................................................................................................................................379

8.1.1 Introduction to Ethernet OAM..............................................................................................................379

8.1.2 Ethernet OAM Supported by the NE80E/40E.......................................................................................379

8.2 Configuring Basic EFM OAM.......................................................................................................................390

8.2.1 Establishing the Configuration Task.....................................................................................................390

8.2.2 Enabling EFM OAM Globally..............................................................................................................390

8.2.3 Configuring the Working Mode of EFM OAM on an Interface...........................................................391

8.2.4 (Optional) Setting the Maximum Size of an EFM OAMPDU..............................................................392

8.2.5 (Optional) Setting the Timeout Period for Waiting for OAM PDUs....................................................392

8.2.6 Enabling EFM OAM on an Interface....................................................................................................393

8.2.7 Checking the Configuration...................................................................................................................393

8.3 Configuring EFM OAM Link Monitoring.....................................................................................................394

8.3.1 Establishing the Configuration Task.....................................................................................................394

8.3.2 (Optional) Detecting Errored Frames of EFM OAM............................................................................395

8.3.3 (Optional) Detecting Errored Codes of EFM OAM..............................................................................396

8.3.4 (Optional) Detecting Errored Frame Seconds of EFM OAM...............................................................396

8.3.5 Checking the Configuration...................................................................................................................397

8.4 Testing the Packet Loss Ratio on the Physical Link......................................................................................398

8.4.1 Establishing the Configuration Task.....................................................................................................398

8.4.2 Enabling EFM OAM Remote Loopback...............................................................................................399

8.4.3 Sending Test Packets.............................................................................................................................400

8.4.4 Checking the Statistics on Returned Test Packets.................................................................................401

8.4.5 (Optional) Manually Disabling EFM OAM Remote Loopback............................................................401

8.4.6 Checking the Configuration...................................................................................................................402

8.5 Associating EFM OAM with an Interface......................................................................................................403

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8.5.1 Establishing the Configuration Task.....................................................................................................403

8.5.2 Associating EFM OAM with an Interface.............................................................................................404

8.5.3 Checking the Configuration...................................................................................................................404

8.6 Configuring Basic Ethernet CFM...................................................................................................................405

8.6.1 Establishing the Configuration Task.....................................................................................................405

8.6.2 Switching IEEE 802.1ag Versions........................................................................................................407

8.6.3 Enabling Ethernet CFM Globally..........................................................................................................407

8.6.4 Creating an MD.....................................................................................................................................408

8.6.5 (Optional) Creating the Default MD.....................................................................................................408

8.6.6 Creating an MA.....................................................................................................................................409

8.6.7 Creating a MEP.....................................................................................................................................410

8.6.8 Creating an RMEP.................................................................................................................................411

8.6.9 (Optional) Setting the Rule for Creating a MIP....................................................................................412

8.6.10 Enabling CC Detection........................................................................................................................413

8.6.11 (Optional) Creating a VLAN...............................................................................................................414

8.6.12 Checking the Configuration.................................................................................................................415

8.7 Configuring Related Parameters of Ethernet CFM........................................................................................419

8.7.1 Establishing the Configuration Task.....................................................................................................419

8.7.2 (Optional) Configuring the RMEP Activation Time.............................................................................420

8.7.3 (Optional) Configuring the Anti-Jitter Time During Alarm Restoration..............................................421

8.7.4 (Optional) Configuring the Anti-Jitter Time During Alarm Generation...............................................421

8.8 Fault Verification on the Ethernet..................................................................................................................422

8.8.1 Establishing the Configuration Task.....................................................................................................422

8.8.2 (Optional) Implementing 802.1ag MAC Ping.......................................................................................423

8.8.3 (Optional) Implementing Gmac ping....................................................................................................424

8.9 Locating the Fault on the Ethernet.................................................................................................................424

8.9.1 Establishing the Configuration Task.....................................................................................................424

8.9.2 (Optional) Implementing 802.1ag MAC Trace.....................................................................................425

8.9.3 (Optional) Implementing Gmac trace....................................................................................................426

8.10 Associating Ethernet CFM with an Interface...............................................................................................427

8.10.1 Establishing the Configuration Task...................................................................................................427

8.10.2 Associating Ethernet CFM with an Interface......................................................................................430

8.10.3 Checking the Configuration.................................................................................................................430

8.11 Associating EFM OAM with Ethernet CFM................................................................................................431

8.11.1 Establishing the Configuration Task...................................................................................................431

8.11.2 Associating Ethernet OAM with Ethernet OAM................................................................................432

8.11.3 Checking the Configuration.................................................................................................................433

8.12 Associating Ethernet CFM with VPLS........................................................................................................433

8.12.1 Establishing the Configuration Task...................................................................................................433

8.12.2 Configuring Ethernet CFM Based on the VPLS Between the PEs.....................................................434

8.12.3 Configuring Ethernet CFM Between the CE and Local PE................................................................435

8.12.4 Configuring Ethernet CFM Between the CE and Peer PE..................................................................437

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8.12.5 Checking the Configuration.................................................................................................................437

8.13 Associating Ethernet CFM with VLL (by Using Sub-interfaces for QinQ VLAN Tag Termination).........438

8.13.1 Establishing the Configuration Task...................................................................................................438

8.13.2 Configuring Ethernet CFM on PEs on a VLL.....................................................................................439

8.13.3 Configuring Ethernet CFM on the Switch and Local PE....................................................................441

8.13.4 Configuring Ethernet CFM on the Switch and Remote PE.................................................................443

8.13.5 Checking the Configuration.................................................................................................................444

8.14 Associating Ethernet CFM with VPLS (by Using Sub-interfaces for QinQ VLAN Tag Termination)

..............................................................................................................................................................................446

8.14.1 Establishing the Configuration Task...................................................................................................446

8.14.2 Configuring Ethernet CFM on PEs on a VPLS...................................................................................447

8.14.3 Configuring Ethernet CFM on the Switch and Local PE....................................................................448

8.14.4 Configuring Ethernet CFM on the Switch and Remote PE.................................................................449

8.14.5 Checking the Configuration.................................................................................................................449

8.15 Associating Ethernet OAM with MPLS OAM or BFD...............................................................................452

8.15.1 Establishing the Configuration Task...................................................................................................452

8.15.2 Configuring Ethernet OAM Functions................................................................................................453

8.15.3 Associating Ethernet OAM with MPLS OAM or BFD......................................................................453

8.15.4 Checking the Configuration.................................................................................................................454

8.16 Configuring Ethernet CFM and 1+1 Protection of Multicast VLANs.........................................................455

8.17 Maintaining Ethernet OAM..........................................................................................................................455

8.17.1 Clearing the Statistics on Error CCMs................................................................................................455

8.17.2 Monitoring the Running Status of Ethernet OAM..............................................................................455

8.18 Configuration Examples...............................................................................................................................456

8.18.1 Example for Configuring EFM OAM.................................................................................................456

8.18.2 Example for Testing the Packet Loss Ratio on the Link.....................................................................459

8.18.3 Example for Configuring Ethernet CFM.............................................................................................463

8.18.4 Example for Configuring the Default MD for Ethernet CFM.............................................................471

8.18.5 Example for Associating Ethernet CFM with an Interface.................................................................478

8.18.6 Example for Associating EFM OAM with Ethernet CFM..................................................................484

8.18.7 Example for Configuring VPLS Ethernet CFM..................................................................................488

8.18.8 Example for Configuring VPLS-based Ethernet CFM Through Sub-interfaces for QinQ VLAN Tag

Termination....................................................................................................................................................499

8.18.9 Example for Configuring VLL-based Ethernet CFM Through Sub-interfaces for QinQ VLAN Tag

Termination....................................................................................................................................................512

8.18.10 Example for Associating EFM OAM with MPLS OAM..................................................................521

8.18.11 Example for Configuring EFM OAM Extension for VRRP.............................................................531

8.18.12 Exmaple for Configuring EFM OAM Extension for Static Routes..................................................541

9 Y.1731 Configuration................................................................................................................552

9.1 Introduction....................................................................................................................................................554

9.1.1 Y.1731 Overview...................................................................................................................................554

9.1.2 Y.1731 Features Supported by the NE80E/40E....................................................................................557

9.2 Configuring Single-Ended Frame Loss Measurement on a VLL...................................................................558

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9.2.1 Establishing the Configuration Task.....................................................................................................558

9.2.2 Binding an MA to a VLL......................................................................................................................559

9.2.3 Configuring LMM Reception on a Remote MEP.................................................................................561

9.2.4 Enabling Single-Ended Frame Loss Measurement on a VLL...............................................................562

9.2.5 Checking the Configuration...................................................................................................................564

9.3 Configuring Dual-Ended Frame Loss Measurement on a VLL.....................................................................566

9.3.1 Establishing the Configuration Task.....................................................................................................566

9.3.2 Binding an MA to a VLL......................................................................................................................567

9.3.3 Enabling Dual-Ended Frame Loss Measurement on a VLL.................................................................569

9.3.4 Checking the Configuration...................................................................................................................569

9.4 Configuring One-Way Frame Delay Measurement on a VLL.......................................................................570

9.4.1 Establishing the Configuration Task.....................................................................................................570

9.4.2 Binding an MA to a VLL......................................................................................................................572

9.4.3 Configuring DM Frame Reception on the Remote Device...................................................................573

9.4.4 Enabling One-Way Frame Delay Measurement on a VLL...................................................................574

9.4.5 Checking the Configuration...................................................................................................................576

9.5 Configuring Two-Way Frame Delay Measurement on a VLL......................................................................577

9.5.1 Establishing the Configuration Task.....................................................................................................578

9.5.2 Binding an MA to a VLL......................................................................................................................579

9.5.3 Configuring DMM Reception on a Remote Device..............................................................................580

9.5.4 Enabling Two-Way Frame Delay Measurement on a VLL...................................................................581

9.5.5 Checking the Configuration...................................................................................................................583

9.6 Configuring Single-Ended Frame Loss Measurement on a VPLS Network..................................................584

9.6.1 Establishing the Configuration Task.....................................................................................................584

9.6.2 Binding an MA to a VPLS Network.....................................................................................................586

9.6.3 Configuring LMM Reception on a Remote MEP.................................................................................586

9.6.4 Enabling Single-Ended Frame Loss Measurement on a VPLS Network..............................................587

9.6.5 Checking the Configuration...................................................................................................................588

9.7 Configuring Dual-Ended Frame Loss Measurement on a VPLS Network....................................................589

9.7.1 Establishing the Configuration Task.....................................................................................................589

9.7.2 Binding an MA to a VPLS Network.....................................................................................................590

9.7.3 Enabling Dual-Ended Frame Loss Measurement on a VPLS Network................................................591

9.7.4 Checking the Configuration...................................................................................................................592

9.8 Configuring One-Way Frame Delay Measurement on a VPLS Network......................................................592

9.8.1 Establishing the Configuration Task.....................................................................................................592

9.8.2 Binding an MA to a VPLS Network.....................................................................................................594

9.8.3 Configuring DM Frame Reception on a Remote Device......................................................................594

9.8.4 Enabling One-Way Frame Delay Measurement on a VPLS Network..................................................595

9.8.5 Checking the Configuration...................................................................................................................596

9.9 Configuring Two-Way Frame Delay Measurement on a VPLS Network.....................................................596

9.9.1 Establishing the Configuration Task.....................................................................................................597

9.9.2 Binding an MA to a VPLS Network.....................................................................................................598

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9.9.3 Configuring DMM Reception on a Remote MEP.................................................................................599

9.9.4 Enabling Two-Way Frame Delay Measurement on a VPLS Network..................................................599

9.9.5 Checking the Configuration...................................................................................................................600

9.10 Configuration Examples...............................................................................................................................601

9.10.1 Example for Configuring On-Demand Single-Ended Frame Loss Measurement on a VLL..............601

9.10.2 Example for Configuring Proactive Single-Ended Frame Loss Measurement on a VLL...................605

9.10.3 Example for Configuring Proactive Dual-Ended Frame Loss Measurement on a VLL.....................609

9.10.4 Example for Configuring On-Demand One-way Frame Delay Measurement on a VLL...................613

9.10.5 Example for Configuring Proactive One-Way Frame Delay Measurement on a VLL.......................617

9.10.6 Example for Configuring On-Demand Two-Way Frame Delay Measurement on a VLL..................621

9.10.7 Example for Configuring Proactive Two-Way Frame Delay Measurement on a VLL......................626

9.10.8 Example for Configuring On-Demand Single-Ended Frame Loss Measurement on a VPLS Network

........................................................................................................................................................................630

9.10.9 Example for Configuring Proactive Dual-Ended Frame Loss Measurement on a VPLS Network

........................................................................................................................................................................635

9.10.10 Example for Configuring On-Demand One-way Frame Delay Measurement on a VPLS Network

........................................................................................................................................................................641

9.10.11 Example for Configuring On-Demand Two-way Frame Delay Measurement on a VPLS Network

........................................................................................................................................................................647

9.10.12 Example for Configuring Y.1731 Statistics Based on QoS Simple Traffic Classification...............654

10 MPLS-TP OAM Configuration.............................................................................................662

10.1 Introduction..................................................................................................................................................663

10.1.1 MPLS-TP OAM Overview..................................................................................................................663

10.1.2 MPLS-TP OAM Features Supported by the NE80E/40E...................................................................663

10.2 Configuring MPLS-TP OAM for an LSP.....................................................................................................664

10.2.1 Establishing the Configuration Task...................................................................................................664

10.2.2 Creating an ME and Binding It to a Tunnel Interface.........................................................................666

10.2.3 (Optional) Configuring CC and CV for an LSP..................................................................................667

10.2.4 (Optional) Configuring LB for an LSP................................................................................................669

10.2.5 (Optional) Configuring LM for an LSP...............................................................................................669

10.2.6 (Optional) Configuring DM for an LSP..............................................................................................671

10.2.7 (Optional) Configuring AIS for an LSP..............................................................................................672

10.2.8 Checking the Configuration.................................................................................................................673

10.3 Configuring MPLS-TP OAM for a PW.......................................................................................................675

10.3.1 Establishing the Configuration Task...................................................................................................675

10.3.2 Creating an ME and Binding It to a PW..............................................................................................677

10.3.3 (Optional) Configuring CC and CV for a PW.....................................................................................678

10.3.4 (Optional) Configuring LB (to Be Performed at a Specified Time) for a PW....................................680

10.3.5 (Optional) Configuring LM for a PW..................................................................................................681

10.3.6 (Optional) Configuring DM for a PW.................................................................................................683

10.3.7 Checking the Configuration.................................................................................................................684

10.4 Configuration Examples...............................................................................................................................686

10.4.1 Example for Configuring CC and CV for an LSP...............................................................................687

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10.4.2 Example for Configuring LB for an LSP............................................................................................691

10.4.3 Example for Configuring LM for an LSP...........................................................................................694

10.4.4 Example for Configuring DM for an LSP...........................................................................................698

10.4.5 Example for Configuring AIS for an LSP...........................................................................................702

10.4.6 Example for Configuring CC and CV for a PW..................................................................................705

10.4.7 Example for Configuring LB for a PW...............................................................................................710

10.4.8 Example for Configuring LM for a PW..............................................................................................714

10.4.9 Example for Configuring DM for a PW..............................................................................................718

11 Multi-Device Backup Configuration...................................................................................723

11.1 Introduction..................................................................................................................................................724

11.1.1 Introduction to Multi-Device Backup..................................................................................................724

11.1.2 Multi-Device Backup Supported by the NE80E/40E..........................................................................724

11.2 Establishing the Multi-Device Backup Platform..........................................................................................726

11.2.1 Establishing the Configuration Task...................................................................................................726

11.2.2 Configuring VRRP..............................................................................................................................727

11.2.3 Configuring the Remote Backup Service............................................................................................728

11.2.4 Configuring a Remote Backup Profile................................................................................................729

11.2.5 Checking the Configuration.................................................................................................................729

11.3 Configuring Dual-Device ARP Hot Backup................................................................................................730

11.3.1 Establishing the Configuration Task...................................................................................................730

11.3.2 Configuring an RBP for ARP Service Backup....................................................................................731

11.3.3 Binding the Remote Backup Profile to the Interface...........................................................................731

11.3.4 Checking the Configuration.................................................................................................................732

11.4 Maintaining Multi-Device Backup...............................................................................................................733

11.4.1 Displaying Backup Information..........................................................................................................733

11.4.2 Clearing Backup Information..............................................................................................................733

11.5 Configuration Examples...............................................................................................................................734

11.5.1 Example for Configuring Dual-Device ARP Hot Backup..................................................................734

A Glossary......................................................................................................................................740

B Acronyms and Abbreviations.................................................................................................743

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1 Reliability Overview

About This Chapter

Reliability of a network can be improved mainly in two methods. One method is to use an

effective detection mechanism to implement FRR and the other is to provide a reliable

networking scheme.

1.1 Introduction

Reliability is a technology that can shorten traffic interruption time on a network and improve

network performance.

1.2 Reliability Technologies for IP Networks

This section describes two typical reliability technologies, failure detection and switchover.

1.3 Reliability Technologies Supported by the NE80E/40E

Reliability technologies for IP networks include failure detection technologies and protection

switching technologies.

1.4 Networking of Reliability over an IP Network

This section describes FRR applicable scenarios and FRR solutions.

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1.1 Introduction

Reliability is a technology that can shorten traffic interruption time on a network and improve

network performance.

1.1.1 Overview of Reliability Technologies

Reliability technologies are used to ensure high reliability on a network. Reliability technologies

cover system and hardware reliability design, software reliability design, reliability testing, and

IP network reliability design.

The reliability of a router involves the following aspects:

lSystem and hardware reliability design

lSoftware reliability design

lTest and authentication of reliability

lIP network reliability design

With the popularity of networks and diversification of applications, various value-added services

are deployed on networks. The bandwidth increases in index number. Therefore, even a short-

time interruption may impact a huge number of services critically and make an incredible loss.

For a fundamental network that bears services, its reliability is highlighted much more than ever.

This chapter focuses on reliability technologies applicable to the IP network over the Versatile

Routing Platform (NE80E/40E).

1.1.2 Indices of Reliability

Indices of reliability include MTTR, MTBF, and availability.

Generally, the reliability of a product or a system is evaluated based on two indices, namely,

Mean Time to Repair (MTTR) and Mean Time Between Failures (MTBF).

MTTR

The MTTR indicates the fault recovery capability. It is an index of maintainability. The MTTR

is the average time that a component or a device will take to recover from any failure. The MTTR,

in fact, is the fault-tolerance capability. In a broader sense, the MTTR also includes spare part

management and customer service. The MTTR is usually part of a maintenance contract.

The formula used to calculate the MTTR is as follows:

MTTR = Fault detection time + Board replacement time + System initialization time + Link

recovery time + Route coverage time + Forwarding recovery time

The smaller the addends are, the smaller the MTTR is and the higher the availability a device

offers.

MTBF

The MTBF indicates the probability of faults. It is an index of reliability. The MTBF is the

predicted elapsed time between inherent failures of a system during operation, usually in hours.

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Availability

The availability identifies the utility of a system. You can improve the device availability by

increasing the MTBF and decreasing the MTTR.

In the telecommunication industry, 99.999% availability means that service interruption caused

by device failures must be less than 5 minutes each year.

In actual networking, network faults and service interruption are inevitable. Therefore, providing

technologies to enable device to recover from failures rapidly becomes very important. Such

technologies can improve device availability by reducing MTTR.

1.1.3 Levels of Reliability Requirements

The objective and implementation method of the reliability vary with the level of reliability

requirements.

Table 1-1 lists three requirement levels and describes their objectives and implementation

methods.

Table 1-1 Levels of reliability requirements

Level Objective Implementation Method

1Less faults in the

software and hardware

of a system

lHardware: simplified design, standardized circuits,

reliable application of components, reliability

control over purchased components, reliable

manufacture, environment adaptability, and

reliability testing (HALT/HASS)

lSoftware: checklist for the software reliability design

2No impact on a system

when a default occurs

lRedundancy design

lSwitchover policy

lHigh availability of switchover

3 Rapid recovery from a

fault that affects the

system

lFault detection

lFault diagnosis

lFault isolation

lFault recovery

1.1.4 Principles for High-Reliablity IP Networking

Technologies for reliable networking cover the hierarchy networking, redundancy technology,

and load balancing technology.

The principles for high-reliablity IP networking are as follows:

lHierarchical networking: A network is divided into three layers, core layer, convergence

layer, and edge layer. According to the current service status and future service prediction,

redundancy backup is required on a device connected to access nodes on the edge layer.

The active and standby nodes connect to convergence nodes. Devices of convergence layer

are dual-homed to single node multi-device of the upper layer or to multi-node device of

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