The vpn frr command enables VPN FRR.
The undo vpn frr command disables VPN FRR.
By default, VPN FRR is disabled.
Usage Scenario
If a PE connects to two other PEs, running the vpn frr command on PE enables VPN FRR and improves network reliability. When a fault occurs on the primary tunnel, a PE configured with VPN FRR can switch VPN traffic to the secondary tunnel before the VPN routes are converged.
Prerequisites
The VPN instance RD has been configured by running the route-distinguisher command in the VPN instance view.