Description

BGP session timers reset with neighbors during RE switchover even with NSR and GRES. 

Symptoms

It is expected that the BGP session timers refresh when Routine Engine switchover performed with GRES/NSR. However, the session itself is not re-established; the routine table is intact. The peer side also shows proper timings of BGP session.

Solution

 

Do not confuse with BGP session timers when RE switchover performed with NSR/GRES. Check from peer side.