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Regarding IBGP

Hello All,

I have two routers connected and running IBGP between two of them and I am able to ping each other.

But later I replace one of the router with same configuration and now I am unable to ping the other router, the replaced new router is of same vendor.

May I know why this is happening.

1 REPLY 1
Cisco Employee

Could you please check the

Could you please check the router (which has not been replaced) for the ARP entry (show ip arp) for the other side and verify it with the MAC address of the other side (the MAC address of the interface on new router). It may be possible that the ARP entry was not cleared and causing the ping to not go through.

Secondly, it could also be some hardware issue or issue with the SFP (if fiber link) on the new router.

Hope this helps.

Regards

Vinit

Thanks
--Vinit
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