Configuring BGP Auto FRR
Context
On a traditional IP network, it often takes the routing system several seconds to complete route convergence after a link fault is detected. This convergence speed cannot meet requirements of the services that require a low delay and low packet loss rate because it may lead to service interruption. For example, Voice over Internet Protocol (VoIP) services are only tolerant of millisecond-level interruption. BGP Auto Fast Reroute (FRR) implements route convergence at the millisecond level after a fault is detected at the physical layer or link layer. BGP Auto FRR reduces the impact of link faults on services.
Procedure
- Run system-view
The system view is displayed.
- Run bgp { as-number-plain | as-number-dot }
The BGP view is displayed.
- Enter the corresponding address family view based on network
type to configure BGP devices on networks.
Run ipv4-family unicast
The BGP-IPv4 unicast address family view is displayed.
Run ipv4-family vpn-instance vpn-instance-name
The BGP-VPN instance IPv4 address family view is displayed.
Run ipv6-family [ unicast ]
The BGP-IPv6 unicast address family view is displayed.
Run ipv6-family vpn-instance vpn-instance-name
The BGP-VPN instance IPv6 address family view is displayed.
- Run auto-frr
BGP Auto FRR is enabled for unicast routes.
By default, BGP Auto FRR is disabled for unicast routes. - Run commit
The configuration is committed.