Enabling P2MP TE Auto FRR

Enabling P2MP TE Auto FRR on the ingress or a transit node of the primary tunnel is the prerequisite of configuring TE Auto FRR.

Context

Perform either of the following operations to enable P2MP TE Auto FRR on the NetEngine 8000 F:

Configure the entire device and its interface when Auto FRR needs to be configured on most interfaces.
Only configure a specified interface when Auto FRR needs to be configured only on a few interfaces.

Procedure

Configure the entire device and its interface.
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
  MPLS TE Auto FRR is enabled globally.
  
  P2MP TE FRR only supports link protection, while a bypass tunnel that the ingress establishes supports node protection by default. As a result, the bypass tunnel fails to be established. To prevent the establishment failure, configure the self-adapting parameter in the mpls te auto-frr command, which enables the ingress to automatically switch from node protection to link protection.
4. Run mpls te p2mp-te auto-frr enable
  P2MP TE Auto FRR is enabled globally.
5. Run quit
  The system view is displayed.
6. Run interface interface-type interface-number
  The view of the outbound interface on the primary tunnel is displayed.
7. (Optional) Run mpls te auto-frr { block | default }
  TE auto FRR is enabled.
8. Run commit
  The configuration is committed.
Configure a specified interface.
1. Run system-view
  The system view is displayed.
2. Run mpls
  The MPLS view is displayed.
3. Run mpls te p2mp-te auto-frr enable
  P2MP TE Auto FRR is enabled globally.
4. Run quit
  The system view is displayed.
5. Run interface interface-type interface-number
  The view of the outbound interface on the primary tunnel is displayed.
6. Run mpls te auto-frr { default | link | self-adapting }
  TE auto FRR is enabled.
7. Run commit
  The configuration is committed.