Cisco Cisco Packet Data Gateway (PDG)
Interchassis Session Recovery
▀ ICSR Configuration
▄ VPC-VSM System Administration Guide, StarOS Release 19
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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 } }
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
DSCP Marking of SRP Messages
You can enable separate DSCP marking of SRP control and checkpoint messages. The dscp-marking command sets
DSCP marking values for SRP control and checkpoint (session maintenance) messages.
DSCP marking values for SRP control and checkpoint (session maintenance) messages.
configure
context context_name
service-redundancy-protocol
dscp-marking { control | session } dscp_value
Notes:
dscp_value can be:
af11 – Assured Forwarding Class 1 low drop PHB (Per Hop Behavior)
af12 – Assured Forwarding Class 1 medium drop PHB
af13 – Assured Forwarding Class 1 high drop PHB
af21 – Assured Forwarding Class 2 low drop PHB
af22 – Assured Forwarding Class 2 medium drop PHB