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Configuration Guide - VPN

S9300, S9300E, and S9300X V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
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(Optional) Configuring BFD for VSI PWs

(Optional) Configuring BFD for VSI PWs

Context

In the VPLS convergence solution, you can establish multiple service VSI PWs and bind them to an mVSI PW. In this manner, if a BFD session is bound to the mVSI PW, you can monitor the service VSI only by monitoring the status of the mVSI PW.

NOTE:

BFD for the VSI PW uses the default multicast IP address as the peer IP address, and this BFD session must be established on the mVSI PW because only the mVSI PW can process multicast BFD packets.

Perform the following steps on devices at both ends of the link to be detected.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run:

    bfd

    BFD is enabled on this node and the BFD view is displayed.

  3. Run:

    quit

    Return to the system view.

  4. Run:

    bfd for vsi-pw enable

    The device is enabled to send BFD for VSI PW packets to the protocol stack.

  5. Run:

    bfd cfg-name bind peer-ip default-ip vsi vsi-name peer peer-address [ vc-id vc-id ]

    BFD is bound to the VSI PW.

    NOTE:

    A default multicast IP address is required for BFD for VSI PW that is a Layer 2 tunnel.

  6. Configuring discriminators for BFD sessions:

    • Run:
      discriminator local discr-value

      A local discriminator is configured.

    • Run:
      discriminator remote discr-value

      A remote discriminator is configured.

    NOTE:

    The local discriminator of the local system and the remote discriminator of the remote system are the same. The remote discriminator of the local system and the local discriminator of the remote system are the same. Otherwise, BFD sessions cannot be established. After the local and remote discriminators are configured, they cannot be modified.

  7. Run:

    commit

    The configuration is committed.

    When the PW status is Down, the BFD session cannot be created successfully.

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Updated: 2019-08-21

Document ID: EDOC1000142068

Views: 111502

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