In a VPRN context, BGP fast reroute is supported for VPN-IPv4 and VPN-IPv6 routes. On the 7210 SAS, BGP fast reroute is not supported for unlabeled IPv4 and unlabeled IPv6 routes.
The following table describes the supported VPRN scenarios.
Ingress packet |
Primary route |
Backup route |
PIC |
|---|---|---|---|
IPv4 (ingress PE) |
IPv4 route with next-hop A resolved by an IPv4 route |
IPv4 route with next-hop B resolved by an IPv4 route |
No |
IPv4 (ingress PE) |
VPN-IPv4 route with next-hop A resolved by an LDP, RSVP, or BGP tunnel |
VPN-IPv4 route with next-hop A resolved by an LDP, RSVP, or BGP tunnel |
Yes |
MPLS (egress PE) |
IPv4 route with next-hop A resolved by an IPv4 route |
IPv4 route with next-hop B resolved by an IPv4 route |
No |
MPLS (egress PE) |
IPv4 route with next-hop A resolved by an IPv4 route |
VPN-IPv4 route with next-hop B resolved by an LDP, RSVP, or BGP tunnel |
No |