BGP failover latency 2

[jkaftan]

Hi:

My question: Is there a way to speed up BGP failover? Currently I find it takes about 2.5 min for the failover to kick in after I take down my interface to my primary. Is that just normal or can it be improved?

I am advertising the primary network on the secondary edge router and I have a prepend statement to make the route less desirable. Here is my relevant config on the secondary router my primary network is 72.237.4.0/24:

!
router bgp 26808
no synchronization
bgp log-neighbor-changes
network 12.185.48.16 mask 255.255.255.240
network 72.237.4.0 mask 255.255.255.0
neighbor 12.86.158.49 remote-as 7018
neighbor 12.86.158.49 soft-reconfiguration inbound
neighbor 12.86.158.49 prefix-list Gateway in
neighbor 12.86.158.49 prefix-list Advertise out
neighbor 12.86.158.49 route-map SETPATH out
no auto-summary

route-map SETPATH permit 10
set as-path prepend 26808 26808

Thanks

John

 

[unclerico]

timers bgp keepalive holdtime [min-holdtime]
[/code
Be sure you set the same values on both iBGP peers.

[i]I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)[/i]
- ColdFlame (vbscript forum)

 

[Belushi]

Look up BFD for BGP (bidirectional forwarding detection).

http://www.cisco.com/en/US/docs/ios...ts_Configuration_Guide_Chapter.html#wp1056317

 

[unclerico]

I second BFD!!! I had never heard of it before now. You learn something new every day. Ima star Belushi because BFD is a BFD

I hate all Uppercase... I don't want my groups to seem angry at me all the time! =)
- ColdFlame (vbscript forum)