Cisco Cisco Packet Data Gateway (PDG)
Routing
Bidirectional Forwarding Detection ▀
ASR 5500 System Administration Guide, StarOS Release 17 ▄
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Set BFD to Ignore ICSR Dead Interval
The SRP Configuration mode bfd-mon-ignore-dead-interval command causes the standby ICSR chassis to ignore the
dead interval and remain in the standby state until all the BFD chassis-to-chassis monitors fail.
dead interval and remain in the standby state until all the BFD chassis-to-chassis monitors fail.
Enable this feature in association with BFD chassis-to-chassis monitoring to support more aggressive ICSR failure
detection times.
detection times.
configure
context context_name
service-redundancy-protocol variable
bfd-mon-ignore-dead-interval
end
Configure ICSR Switchover Guard Timer
The SRP Configuration mode guard timer command configures the redundancy-guard-period and monitor-damping-
period for SRP service monitoring.
period for SRP service monitoring.
Use these guard timers to ensure that local failures, such as card reboots and task restarts, do not result in ICSR events
which can be disruptive.
which can be disruptive.
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.