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NE40E V800R010C00 Configuration Guide - MPLS 01

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Enabling an MPLS Device to Dynamically Establish a BGP BFD Session

Enabling an MPLS Device to Dynamically Establish a BGP BFD Session

Before a dynamic BGP BFD session is established, the capability to dynamically establish BGP BFD sessions must be enabled on each MPLS devices.

Procedure

  • Perform the following steps on the ingress of an E2E BGP tunnel:
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      bfd

      BFD is enabled globally.

    3. Run:

      quit

      Return to the system view.

    4. Run:

      mpls

      The MPLS view is displayed.

    5. Run:

      mpls bgp bfd enable

      The ability to dynamically establish BGP BFD sessions is enabled on the ingress.

      The mpls bgp bfd enable command does not create a BFD session. A BGP BFD session can only be dynamically established only after a policy for dynamically establish BGP BFD session is configured.

    6. Run:

      commit

      The configuration is committed.

  • Perform the following steps on the egress of an E2E BGP tunnel:
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      bfd

      BFD is enabled globally, and the BFD view is displayed.

    3. Run:

      mpls-passive

      The capability of passively creating a BFD session is configured on the egress.

      The mpls-passive command does not create a BFD session. The egress has to receive an LSP ping request carrying a BFD TLV before creating a BFD session with the ingress.

    4. Run:

      commit

      The configuration is committed.

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Updated: 2018-07-12

Document ID: EDOC1100028530

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