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Configuration Guide - Reliability

S9300, S9300E, and S9300X V200R013C00

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, NSR Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, MAC Swap Loopback Configuration, EFM Configuration, CFM Configuration, Y.1731 Configuration.
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Example for Configuring Single-hop BFD for Detecting Faults on a Layer 2 Link

Example for Configuring Single-hop BFD for Detecting Faults on a Layer 2 Link

Networking Requirements

As shown in Figure 2-20, SwitchA and SwitchB are connected through a Layer 2 interface. Faults on the link between SwitchA and SwitchB need to be fast detected.

Figure 2-20  Single-hop BFD for detecting faults on a Layer 2 link

Configuration Roadmap

The configuration roadmap is as follows:

Configure BFD sessions on SwitchA and SwitchB to detect faults on the link between SwitchA and SwitchB.

Procedure

  1. Configure single-hop BFD on SwitchA.

    # Enable BFD on SwitchA.

    <Quidway> system-view
    [Quidway] sysname SwitchA
    [SwitchA] bfd
    [SwitchA-bfd] quit

    # Create a BFD session on SwitchA.

    [SwitchA] bfd atob bind peer-ip default-ip interface gigabitethernet 1/0/1
    [SwitchA-bfd-session-atob] discriminator local 1
    [SwitchA-bfd-session-atob] discriminator remote 2
    [SwitchA-bfd-session-atob] commit
    [SwitchA-bfd-session-atob] quit
    

  2. Configure single-hop BFD on SwitchB.

    # Enable BFD on SwitchB.

    <Quidway> system-view
    [Quidway] sysname SwitchB
    [SwitchB] bfd
    [SwitchB-bfd] quit

    # Create a BFD session on SwitchB.

    [SwitchB] bfd btoa bind peer-ip default-ip interface gigabitethernet 1/0/1
    [SwitchB-bfd-session-btoa] discriminator local 2
    [SwitchB-bfd-session-btoa] discriminator remote 1
    [SwitchB-bfd-session-btoa] commit
    [SwitchB-bfd-session-btoa] quit

  3. Verify the configuration.

    After the configuration is complete, run the display bfd session all verbose command on SwitchA and SwitchB. You can see that a single-hop BFD session is set up and its status is Up.

    The display on SwitchA is used as an example.

    [SwitchA] display bfd session all verbose
    --------------------------------------------------------------------------------
    Session MIndex : 4097      (One Hop) State : Up        Name : atob
    --------------------------------------------------------------------------------
      Local Discriminator    : 1              Remote Discriminator   : 2
      Session Detect Mode    : Asynchronous Mode Without Echo Function
      BFD Bind Type          : Interface(GigabitEthernet1/0/1)
      Bind Session Type      : Static
      Bind Peer IP Address   : 224.0.0.184
      NextHop Ip Address     : 224.0.0.184
      Bind Interface         : GigabitEthernet1/0/1
      FSM Board Id           : 0                TOS-EXP                : 7
      Min Tx Interval (ms)   : 1000             Min Rx Interval (ms)   : 1000
      Actual Tx Interval (ms): 1000             Actual Rx Interval (ms): 1000
      Local Detect Multi     : 3                Detect Interval (ms)   : 3000
      Echo Passive           : Disable          Acl Number             : -
      Destination Port       : 3784             TTL                    : 255 
      Proc Interface Status  : Disable          Process PST            : Disable
      WTR Interval (ms)      : -                  
      Active Multi           : 3                DSCP                   : - 
      Last Local Diagnostic  : No Diagnostic
      Bind Application       : No Application Bind
      Session TX TmrID       : -                Session Detect TmrID   : -
      Session Init TmrID     : -                Session WTR TmrID      : -
      Session Echo Tx TmrID  : -
      PDT Index              : FSM-0 | RCV-0 | IF-0 | TOKEN-0
      Session Description    : -
    --------------------------------------------------------------------------------
     
         Total UP/DOWN Session Number : 1/0

    # Run the shutdown command on GE1/0/1 of SwitchA to simulate a link fault.

    [SwitchA] interface gigabitethernet 1/0/1
    [SwitchA-GigabitEthernet1/0/1] shutdown
    [SwitchA-GigabitEthernet1/0/1] quit

    After the configuration is complete, run the display bfd session all verbose command on SwitchA and SwitchB. You can see that a single-hop BFD session is set up and its status is Down. The display on SwitchA is used as an example.

    [SwitchA] display bfd session all verbose
    --------------------------------------------------------------------------------
    Session MIndex : 4097      (One Hop) State : Down        Name : atob
    --------------------------------------------------------------------------------
      Local Discriminator    : 1              Remote Discriminator   : 2
      Session Detect Mode    : Asynchronous Mode Without Echo Function
      BFD Bind Type          : Interface(GigabitEthernet1/0/1)
      Bind Session Type      : Static
      Bind Peer IP Address   : 224.0.0.184
      NextHop Ip Address     : 224.0.0.184
      Bind Interface         : GigabitEthernet1/0/1
      FSM Board Id           : 0                TOS-EXP                : 7
      Min Tx Interval (ms)   : 1000             Min Rx Interval (ms)   : 1000
      Actual Tx Interval (ms): 13000            Actual Rx Interval (ms): 13000
      Local Detect Multi     : 3                Detect Interval (ms)   : -
      Echo Passive           : Disable          Acl Number             : -
      Destination Port       : 3784             TTL                    : 255 
      Proc Interface Status  : Disable          Process PST            : Disable
      WTR Interval (ms)      : -                  
      Active Multi           : 3                DSCP                   : - 
      Last Local Diagnostic  : Control Detection Time Expired
      Bind Application       : No Application Bind
      Session TX TmrID       : 16402            Session Detect TmrID   : -
      Session Init TmrID     : -                Session WTR TmrID      : -
      Session Echo Tx TmrID  : -
      PDT Index              : FSM-0 | RCV-0 | IF-0 | TOKEN-0
      Session Description    : -
    --------------------------------------------------------------------------------
     
         Total UP/DOWN Session Number : 0/1

Configuration Files

  • SwitchA configuration file

    #
    sysname SwitchA
    #
    bfd
    #
    bfd atob bind peer-ip default-ip interface GigabitEthernet1/0/1
     discriminator local 1
     discriminator remote 2
     commit
    #
    return
  • SwitchB configuration file

    #
    sysname SwitchB
    #
    bfd
    #
    bfd btoa bind peer-ip default-ip interface GigabitEthernet1/0/1
     discriminator local 2
     discriminator remote 1
     commit
    #
    return
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Updated: 2019-04-09

Document ID: EDOC1100065868

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