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Configuration Guide - MPLS

S7700 and S9700 V200R010C00

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 Auto Bypass Tunnel Re-Optimization

(Optional) Configuring Auto Bypass Tunnel Re-Optimization


Network changes often cause the changes in optimal paths. Auto Bypass tunnel re-optimization allows paths to be recalculated at certain intervals for an auto bypass tunnel. If an optimal path to the same destination is found due to some reasons, such as the changes in the cost, a new auto bypass tunnel will be set up over this optimal path. In this manner, network resources are optimized.

Perform the following configurations on the PLR.


  1. Run:


    The system view is displayed.

  2. Run:


    The MPLS view is displayed.

  3. Run:

    mpls te auto-frr reoptimization [ frequency interval ]

    Auto bypass tunnel re-optimization is enabled.

    By default, auto bypass tunnel re-optimization is disabled. If re-optimization is enabled, the default interval at which auto bypass tunnel re-optimization is performed is 3600 seconds.

  4. (Optional) Immediately re-optimize the TE tunnels on which automatic re-optimization is enabled.
    1. Run:


      Return to the user view.

    2. Run:

      mpls te reoptimization

      Manual re-optimization is enabled.

      After you configure the automatic re-optimization in the tunnel interface view, you can return to the user view and run the mpls te reoptimization command to immediately re-optimize the TE tunnels on which the automatic re-optimization is enabled. After you perform the manual re-optimization, the timer of the automatic re-optimization is reset and counts again.

Updated: 2019-04-18

Document ID: EDOC1000141902

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