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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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Configuring Association Between TE FRR and CR-LSP Backup

Configuring Association Between TE FRR and CR-LSP Backup

After the primary CR-LSP is faulty, the system starts the TE FRR bypass tunnel and tries to restore the primary CR-LSP the same time it sets up a backup CR-LSP.

Pre-configuration Tasks

Before configuring association between TE FRR and CR-LSP backup, complete the following tasks:


Association between TE FRR and CR-LSP backup protects the entire CR-LSP.

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


  1. Run system-view

    The system view is displayed.

  2. Run interface tunnel interface-number

    The tunnel interface view of the MPLS TE tunnel is displayed.

  3. Run mpls te backup frr-in-use

    When the primary CR-LSP is faulty (that is, the primary CR-LSP is in FRR-in-use state), the system starts the bypass CR-LSP and tries to restore the primary CR-LSP. At the same time, the system attempts to set up a backup CR-LSP.

  4. Run mpls te commit

    The tunnel configurations are committed.

Verifying the Configuration

Run the display mpls te tunnel-interface [ tunnel interface-number | auto-bypass-tunnel [ tunnel-name ] ] command to view information about the tunnel.

Updated: 2019-10-18

Document ID: EDOC1000178315

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