Enabling Auto TE FRR

Procedure

1. Run system-view

   The system view is displayed.

2. Run mpls

   The MPLS view is displayed.

3. Run mpls te auto-frr [ self-adapting ]

   Auto TE FRR is enabled globally.

   To enable an automatic bypass tunnel to dynamically select node or link protection based on network conditions, configure self-adapting.

4. (Optional) Configure auto TE FRR capability on the interface.
   1. Run quit

      The system view is displayed again.

   2. Run interface interface-type interface-number

      The view of the outbound interface of the primary tunnel 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 auto-frr { block | default | link | node | self-adapting }

      By default, an MPLS TE-enabled interface is automatically configured with mpls te auto-frr default. That is, the auto TE FRR capability on the interface is consistent with the global auto TE FRR capability.

      • If the mpls te auto-frr command without node configured is run, and the requirement for node protection is not met, the penultimate hop (but not other hops) on the primary tunnel attempts to set up an automatic bypass tunnel for link protection.

      • To enable an automatic bypass tunnel bound to the current tunnel to dynamically select node or link protection based on network conditions, configure self-adapting.

5. Run commit

   The configuration is committed.