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BGP is perhaps the most widely used and dependable routing protocol on the Internet, and it even plays a significant role in linking large businesses.
In this case, redundant routing mechanisms and the fastest route failovers in the setup are significant.
Configure the following timers to the lowest values as needed to enable the fastest route failovers:
scan-time, advertisement-interval, keep-alive-timer, and holdtime-timer.
CLI Syntax:
config router bgp
set scan-time 'integer' <----- Background scanner interval(sec), 0 to disable it.(integer= Minimum value: 5 Maximum value: 60, Default:60)
end
config router bgp
config neighbor/neighbor-group
edit 'ip'/'name'
set advertisement-interval 'integer' <----- Minimum interval(sec) between sending updates.(integer= Minimum value: 1 Maximum value: 600, default:30).
set keep-alive-timer 'integer' <----- Keep alive timer interval (sec).(integer= Minimum value: 0 Maximum value: 65535) (default: <Global BGP value>).
set holdtime-timer 'integer' <----- Number of seconds to mark peer as dead. (integer= Minimum value: 3 Maximum value: 65535, or special:<0>) (default: <Global BGP value>)
end
Example:
config router bgp
set keepalive-timer 5
set holdtime-timer 15
set scan-time 59
config neighbor
edit "10.10.20.1"
set advertisement-interval 2
set link-down-failover enable
set connect-timer 2
next
end
In the case of IPSec, there are 2 more values that can be modified under DPD (dead peer detection):
- Retry count (default: 3).
- Retry interval (default: 20 Seconds).
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