BGP Convergence time improvement

[Vinayaka Raman]

Failover
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I did an admin shut on gi 0/1 of R1..
It took around 3 minutes for R3 and R5 to reflect this change..(to change the path for prefix A)

Failback:
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I have enabled Gi 0/1 on R1
It look less than a minute for R3 and R5 to reflected this change.

The failover time needs to be improved as it cause application like office communicator, outlook etc
to kick off the session and prompt for relogin as they failover from primary to secondary path.

1) When there is an actual outage for the Gi 0/1 circuit of R1, will it react the same way.i.e, will R3 and R5 take so long (around
3 minutes) to reflect this change?

2) What and whose BGP timers has to be tuned in order to achieve a quick failover (around 1 minute)?

Regards
Vinayak 

[Jose Jara]

Lei,

yes, it would be good to review the configuration.

Best Regards,

Jose.

[Vinayaka Raman]

I have changed the BGP timers and it worked as expected..

After changning the timers using neigh timer  command, i waited for about 5 minutes to check sho ip bp neigh | i keepalive..it showed me only the configured value and it did not change the default timers..i did a soft reset outbound and did not help..then i did a hard reset and it negotiated the timers with PE.

Regards
Vinayak