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Configuration Guide - MPLS

S7700 and S9700 V200R011C10

This document describes MPLS configurations supported by the switch, including the principle and configuration procedures of static LSPs, MPLS LDP, MPLS TE, MPLS QoS, MPLS OAM, Seamless MPLS, and MPLS common features, and provides configuration examples.
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Enabling MPLS to Dynamically Establish BFD Sessions

Enabling MPLS to Dynamically Establish BFD Sessions

Context

You can enable MPLS to dynamically establish BFD sessions after enabling BFD on the ingress and egress nodes.

Procedure

  • Perform the following steps on the ingress node:
    1. Run system-view

      The system view is displayed.

    2. Run mpls

      The MPLS view is displayed.

    3. Run mpls bfd enable

      An LDP LSP is enabled with the capability of creating BFD session dynamically.

      By default, an ingress cannot dynamically create BFD sessions for monitoring LDP LSPs.

      The BFD session is not created after this command is run.

  • Perform the following steps on the egress node:
    1. Run system-view

      The system view is displayed.

    2. Run bfd

      The BFD view is displayed.

    3. Run mpls-passive

      The function of creating BFD session passively is enabled.

      By default, the egress node of an LSP cannot passively create a BFD session.

      Running this command cannot create a BFD session. The BFD session is not created until the egress node receives the request packet that contains LSP ping of BFD TLV from the ingress node.

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Updated: 2019-10-18

Document ID: EDOC1000178315

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