Cisco Cisco Packet Data Gateway (PDG)
Routing
▀ Bidirectional Forwarding Detection
▄ ASR 5500 System Administration Guide, StarOS Release 18
268
configure
context context_name
service-redundancy-protocol variable
guard-timer { aaa-switchover-timers { damping-period seconds |
guard-period seconds } | diameter-switchover-timers { damping-period seconds |
guard-period seconds } | srp-redundancy-timers { aaa { damping-period seconds |
guard-period seconds } | bgp { damping-period seconds | guard-period seconds } |
diam { damping-period seconds | guard-period seconds } }
guard-period seconds } | diameter-switchover-timers { damping-period seconds |
guard-period seconds } | srp-redundancy-timers { aaa { damping-period seconds |
guard-period seconds } | bgp { damping-period seconds | guard-period seconds } |
diam { damping-period seconds | guard-period seconds } }
end
Notes:
aaa-switchover-timers – sets timers that prevent back-to-back ICSR switchovers due to an AAA failure (post
ICSR switchover) while the network is still converging.
damping-period – configures a delay time to trigger an ICSR switchover due to a monitoring failure
within the guard-period.
guard-period – configures the local-failure-recovery network-convergence timer.
diameter-switchover-timers – sets timers that prevent a back-to-back ICSR switchover due to a Diameter
failure (post ICSR switchover) while the network is still converging.
damping-period – configures a delay time to trigger an ICSR switchover due to a monitoring failure
within the guard-period.
guard-period – configures the local-failure-recovery network-convergence timer.
srp-redundancy-timers – sets timers that prevent an ICSR switchover while the system is recovering from a
local card-reboot/critical-task-restart failure.
aaa – local failure followed by AAA monitoring failure
bgp – local failure followed by BGP monitoring failure
diam – local failure followed by Diameter monitoring failure
Enable BFD Multihop Fall-over
A fall-over bfd multihop mhsess_name keyword in the Context Configuration mode ip route and ipv6 route commands
enables fall-over BFD functionality for the specified multihop session. The fall-over bfd option uses BFD to monitor
neighbor reachability and liveliness. When enabled it will tear down the session if BFD signals a failure.
enables fall-over BFD functionality for the specified multihop session. The fall-over bfd option uses BFD to monitor
neighbor reachability and liveliness. When enabled it will tear down the session if BFD signals a failure.
configure
context context_name
ip route { ip_address/ip_mask | ip_address ip_mask } { gateway_ip_address |
next-hop next_hop_ip_address | point-to-point | tunnel } egress_intrfc_name
[ cost cost ] [ fall-over bfd multihop mhsess_name ] [ precedence precedence ]
[ vrf
next-hop next_hop_ip_address | point-to-point | tunnel } egress_intrfc_name
[ cost cost ] [ fall-over bfd multihop mhsess_name ] [ precedence precedence ]
[ vrf
vrf_name
[ cost
value
] [ fall-over bfd multihop
mhsess_name
]
[ precedence
precedence
] +
end