(Optional) Configure BGP Auto FRR
Context
On an inter-AS seamless MPLS network that has protection
switching enabled, if a link or node fails, traffic switches to a
backup path, which implements uninterrupted traffic transmission.
If both LDP FRR and BGP Auto FRR functions are configured, only BGP Auto FRR takes effect.
Procedure
- Run system-view
The system view is displayed.
- Run bgp { as-number-plain | as-number-dot }
The BGP view is displayed.
- Run ipv4-family unicast
The BGP-IPv4 unicast address family view is displayed.
- Run auto-frr
BGP Auto FRR is enabled for IPv4 unicast routes.
- Run bestroute nexthop-resolved tunnel
Labeled BGP IPv4 unicast routes can participate in route selection only when their next hops are iterated to tunnels.
- (Optional) Run ingress-lsp protect-mode bgp-frr
BGP FRR is enabled for BGP LSPs.
Perform this step on each CSG and MASG to enable the protection switching function for the whole BGP LSP.