Configuring FRR for Automatic P2MP TE Tunnels

Auto P2MP TE FRR is configured in a P2MP TE template for automatic P2MP TE tunnels.

Context

The process of configuring FRR for automatic P2MP TE tunnels is as follows:

Configure the ingress.
Configure a bypass tunnel on the PLR and bind it to the primary tunnel.

Procedure

Configure the ingress.
1. Run system-view
  The system view is displayed.
2. Run mpls te p2mp-template template-name
  A P2MP tunnel template is created, and the P2MP tunnel template view is displayed.
3. Run fast-reroute [ bandwidth ]
  P2MP TE FRR is enabled.
  
  The bandwidth parameter enables bandwidth protection for the primary tunnel. A bypass tunnel is selected to provide bandwidth for the primary tunnel.
4. (Optional) Run bypass-attributes { bandwidth bandwidth | priority setup-priority [ hold-priority ] } ^*
  Attributes for the FRR bypass tunnel are set.
  
  The bandwidth parameter sets the bandwidth for the bypass tunnel. The priority parameter sets the holding and setup priority values for the bypass tunnel.
5. Run commit
  The configuration is committed.
Configure a bypass tunnel on the PLR node and bind the bypass tunnel to the primary tunnel.
1. Run system-view
  The system view is displayed.
2. Run interface tunnel tunnel-number
  The tunnel interface view of a bypass tunnel is displayed.
3. Run tunnel-protocol mpls te
  MPLS TE is configured as a tunnel protocol.
4. Run destination ip-address
  The LSR ID of a merge point (MP) is specified as the destination address of the bypass tunnel.
5. Run mpls te tunnel-id tunnel-id
  The bypass tunnel ID is specified.
6. (Optional) Run mpls te path explicit-path path-name
  An explicit path is specified for the bypass tunnel.
  
  The explicit path planned for the bypass tunnel and the primary tunnel path to be protected must use different physical links.
7. (Optional) Run mpls te bandwidth ct0 bandwidth
  The bypass tunnel bandwidth is configured.
8. Run mpls te bypass-tunnel
  A bypass tunnel is configured.
9. Run mpls te protected-interface interface-type interface-number
  A link interface to be protected by a bypass tunnel is specified.
10. Run commit
  The configuration is committed.