Configuring Metrics for Path Calculation

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 quit

     Return to the system view.

  5. (Optional) Run mpls

     The MPLS view is displayed.

  6. (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.

  7. Run commit

     The configuration is committed.

• (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. 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.

     The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.

     If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.

  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.

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

  5. Run commit

     The configuration is committed.