bgp table version

[swapan.samanta89]

In bgp,what is troubleshhoting steps bgp table version??In my lab i had seen that bgp table version version mismatch and bgp neighbor is not established...i am not able to fix it..

regards 

swapan

[Vinit Jain]

Hello Swapan

First of all, it may not be necessary that you see BGP table version matching for all the peers depending on what routes you are advertising to the peer.

BGP table version actually helps in understanding / troubleshooting any convergence or route propagation problems. the table version increments when ever there is an update received from a BGP peer and based on that updates received, the updates are formatted and advertised to other BGP peers interested in those routes. When the update is sent, the table version of other BGP peers are also updated.

Could you please share the below outputs and we can try to look at the problem you are facing:

- show run | sec router bgp

- show ip bgp all summary

Please do let me know if you have any specific queries on BGP table version.

Regards

Vinit

[swapan.samanta89]

Hello Vinit,,

Thank u for your reply,,,Ok..now i have one question.

 "BGP table version actually helps in understanding / troubleshooting any convergence or route propagation problems. the table version increments when ever there is an update received from a BGP peer and based on that updates received, the updates are formatted and advertised to other BGP peers interested in those routes. When the update is sent, the table version of other BGP peers are also updated"

But i have one doubt.. 

First case,when bgp table is updated but RIB table is not altered

Second case,when RIB table is updated but BGP table is not altered

In which case bgp table version will be increased.

Please explain step by step..