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NE20E-S V800R010C10SPC500 Configuration Guide - MPLS 01

This is NE20E-S V800R010C10SPC500 Configuration Guide - MPLS
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Configuring BFD for P2MP TE

Configuring BFD for P2MP TE

BFD for P2MP TE rapidly monitors P2MP TE tunnels, which helps speed up responses to faults and improve network reliability.

Usage Scenario

If P2MP TE tunnels are established to transmit NG MVPN and multicast VPLS services, BFD for P2MP TE can be configured to rapidly detect faults in P2MP TE tunnels, which improves network reliability. To configure BFD for P2MP TE, run the bfd enable command in the P2MP tunnel template view so that BFD sessions for P2MP TE can be automatically established while P2MP TE tunnels are being established.

Context

Before configuring BFD for P2MP TE, configure an automatic P2MP TE tunnel.

Procedure

  1. Configure the ingress.
    1. Run system-view

      The system view is displayed.

    2. Run bfd

      BFD is enabled.

    3. Run quit

      Return to the system view.

    4. Run mpls te p2mp-template template-name

      A P2MP tunnel template is created, and the P2MP tunnel template view is displayed.

    5. Run bfd enable

      BFD for P2MP TE is enabled.

    6. (Optional) Run bfd { min-tx-interval tx-interval | min-rx-interval rx-interval | detect-multiplier multiplier } *

      BFD for P2MP TE parameters are set.

    7. Run commit

      The configuration is committed.

  2. Configure each leaf node.
    1. Run system-view

      The system view is displayed.

    2. Run bfd

      BFD is enabled, and the BFD view is displayed.

    3. Run mpls-passive

      The egress is enabled to create a BFD session passively.

      The egress has to receive an LSP ping request carrying a BFD TLV before creating a BFD session.

    4. Run commit

      The configuration is committed.

Checking the Configurations

  • Run the display bfd multicast session { all | p2mp-te [ p2mp-id p2mp-id ingress-lsr-id tunnel-id tunnel-id ] } command to check BFD for P2MP TE session information.

<HUAWEI> display bfd multicast session p2mp-te
--------------------------------------------------------------------------------
  (Multi Hop) State : Up                    Name : dyn_16385
--------------------------------------------------------------------------------
  Local Discriminator    : 16385            Remote Discriminator   : 0
  Session Detect Mode    : Asynchronous Mode Without Echo Function
  BFD Bind Type          : P2MP_TE_TUNNEL 
  Bind Session Type      : Dynamic 
  Bind Peer IP Address   : -.-.-.- 
  Track Interface        : - 
  MultiSessType          : MultiHead        P2MP ID                : 33686018
  Tunnel ID              : 32769            Ingress LSR ID         : 2.2.2.2 
  FSM Board Id           : 3                TOS-EXP                : 7
  Min Tx Interval (ms)   : 200              Min Rx Interval (ms)   : 10
  Actual Tx Interval (ms): 200              Actual Rx Interval (ms): - 
  Local Detect Multi     : 3                Detect Interval (ms)   : - 
  Destination Port       : 3784             TTL                    : 255 
  Active Multi           : -                
  Last Local Diagnostic  : Administratively Down 
  Bind Application       : TE
  Session Description    : - 
--------------------------------------------------------------------------------
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Updated: 2019-01-03

Document ID: EDOC1100055103

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