5.14.3 Checking the Configurations.................................................................................................................................363

5.15 Setting the Trap Threshold for Bandwidth Consumption in the Fast Packet Transmission Channel......................364

5.16 Maintaining BFD......................................................................................................................................................365

5.16.1 Clearing BFD Statistics.........................................................................................................................................365

5.16.2 Monitoring BFD Status.........................................................................................................................................365

5.17 Configuration Examples...........................................................................................................................................366

5.17.1 Example for Configuring Single-hop BFD for a Layer 3 Physical Link...............................................................366

5.17.2 Example for Configuring Single-hop BFD for an IP-Trunk Member Link..........................................................369

5.17.3 Example for Configuring Singe-hop BFD for an IP-Trunk Link..........................................................................374

5.17.4 Example for Configuring Single-hop BFD for a Layer 3 Eth-Trunk Member Link.............................................381

5.17.5 Example for Configuring Single-hop BFD for a Layer 3 Eth-Trunk Link............................................................386

5.17.6 Example for Configuring Single-hop BFD for VLANIF Interfaces.....................................................................392

5.17.7 Example for Configuring the Association Between the BFD Status and the Interface Status..............................396

5.17.8 Example for Configuring the Association Between the BFD Status and the Sub-interface Status.......................401

5.17.9 Example for Configuring Multi-Hop BFD............................................................................................................405

5.17.10 Example for Configuring a BFD Session with the One-Arm Echo Function.....................................................408

5.17.11 Example for Configuring BFD for VPN Routes.................................................................................................411

5.17.12 Example for Configuring Sub-interfaces for Dot1q VLAN Tag Termination to Support BFD.........................416

5.17.13 Example for Configuring Sub-interfaces for QinQ VLAN Tag Termination to Support BFD...........................423

5.17.14 Example for Configuring Single-hop BFD6 for a Layer 3 Physical Link...........................................................431

5.17.15 Example for Configuring Multi-hop BFD6.........................................................................................................434

6 GR Configuration......................................................................................................................438

6.1 GR Introduction..........................................................................................................................................................439

6.1.1 HA Overview...........................................................................................................................................................439

6.1.2 GR Features Supported in the NE80E/40E.............................................................................................................446

6.2 Configuring the System-Level GR.............................................................................................................................447

6.2.1 Before You Start......................................................................................................................................................447

6.2.2 (Optional) Configuring the Default Slot Number for the SMB...............................................................................448

6.2.3 Enabling the Automatic Synchronization of the AMB/SMB Configuration..........................................................448

6.2.4 Enabling the Force AMB/SMB Switchover............................................................................................................449

6.2.5 (Optional) Restarting the SMB................................................................................................................................449

6.2.6 Checking the Configurations...................................................................................................................................450

6.3 Maintaining HA..........................................................................................................................................................450

6.3.1 Monitoring the Running of HA...............................................................................................................................450

6.4 Configuration Examples.............................................................................................................................................451

6.4.1 Example for Configuring the System-Level GR.....................................................................................................451

7 NSR Configuration...................................................................................................................456

7.1 NSR Overview............................................................................................................................................................457

7.1.1 Introduction.............................................................................................................................................................457

7.1.2 NSR Features Supported by the NE80E/40E..........................................................................................................459

7.2 Configuring NSR........................................................................................................................................................460

Issue 02 (2014-09-30)

Huawei Proprietary and Confidential

Table of Contents