Configuring Ingress PE Router Redundancy for Point-to-Multipoint LSPs
You can configure one or more PE routers as part of a backup PE router group to enable ingress PE router redundancy. You accomplish this by configuring the IP addresses of the backup PE routers (at least one backup PE router is required) and the local IP address used by the local PE router.
You must also configure a full mesh of point-to-point LSPs between the primary and backup PE routers. You also need to configure BFD on these LSPs. See Configuring BFD for MPLS IPv4 LSPs and Configuring BFD for LDP LSPs for more information.
To configure ingress PE router redundancy for point-to-multipoint LSPs, include the backup-pe-group statement:
For a list of hierarchy levels at which you can include these statements, see the statement summary sections for these statements.
After you configure the ingress PE router redundancy backup group, you must also apply the group to a static route on the PE router. This ensures that the static route is active (installed in the forwarding table) when the local PE router is the designated forwarder for the backup PE group. You can only associate a backup PE router group with a static route that also has the p2mp-lsp-next-hop statement configured. For more information, see Configuring Static LSPs.
