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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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Configuring Metrics for Path Calculation

Configuring Metrics for Path Calculation

Context

You can configure the metric type that is used for setting up a tunnel.

Procedure

  • Specifying the metric type used by the tunnel

    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 interface-number

      The tunnel interface view is displayed.

    3. Run:

      mpls te path metric-type { igp | te }

      The metric type for path computation is configured.

    4. Run:

      mpls te commit

      The current configuration of the tunnel is committed.

    5. Run:

      quit

      Return to the system view.

    6. (Optional) Run:

      mpls

      The MPLS view is displayed.

    7. (Optional) Run:

      mpls te path metric-type { igp | te }

      The path metric type used by the tunnel during route selection is specified.

      If the mpls te path metric-type command is not run in the tunnel interface view, the metric type in the MPLS view is used; otherwise, the metric type in the tunnel interface view is used.

      By default, path metric type used by the tunnel during route selection is TE.

  • (Optional) Configuring the TE metric value of the path

    If the metric type of a specified tunnel is TE, you can modify the TE metric value of the path on the outbound interface of the ingress and the transit node by performing the following configurations.

    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface-number

      The view of the MPLS-TE-enabled interface is displayed.

    3. (Optional) On an Ethernet interface, run undo portswitch

      The interface is switched to Layer 3 mode.

      By default, an Ethernet interface works in Layer 2 mode.

    4. Run:

      mpls te metric value

      The TE metric value of the path is configured.

      By default, the path uses the IGP metric value as the TE metric value.

      NOTE:

      If the IGP is OSPF and the current device is a stub router, the mpls te metric command does not take effect.

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Updated: 2019-04-18

Document ID: EDOC1000141902

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