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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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(Optional) Configuring a Best-Effort Path

(Optional) Configuring a Best-Effort Path


A best-effort path is configured on the ingress node of a primary CR-LSP to take over traffic if both the primary and backup CR-LSPs fail.

Perform the following configurations on the ingress node of an MPLS TE tunnel.


  1. Run system-view

    The system view is displayed.

  2. Run interface tunnel tunnel-number

    The tunnel interface view is displayed.

  3. Run mpls te backup ordinary best-effort

    A best-effort path is configured.


    A tunnel interface cannot be used for both a best-effort path and a manually configured ordinary backup tunnel. A protection failure will occur if the mpls te backup ordinary best-effort and mpls te backup ordinary commands are run on the tunnel interface.

    To establish a best-effort path over a specified path, run either or both of step 4 and step 5.

  4. (Optional) Run mpls te affinity property properties [ mask mask-value ] best-effort

    The affinity property of the best-effort path is configured.

    By default, the affinity property used by the best-effort path is 0x0 and the mask is 0x0.

  5. (Optional) Run mpls te hop-limit hop-limit-value best-effort

    The hop limit of the best-effort path is set.

    The default hop limit is 32.

  6. Run mpls te commit

    The configuration is committed.

Updated: 2019-10-18

Document ID: EDOC1000178315

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