We are experiecing serious issue with the EIGRP Protocol.
We are running a LAST MILE Routing protocol as EIGRP between the PE - CE Router.
The EIGRP resets every 60 / 120 seconds for all locations and in the DEBUG the message that i receive is, Goodbye Message / Notification received from Neighbor.
As per Cisco Documents, EIGRP sends Reliable & Un-reliable Packets.
a) Hello's & ACKs are unreliable
b) Updates, Queries and Replies are reliable
Reliable packets are sequenced and require an acknowledgement. Reliable packets are retransmitted upto 16 times if not acknowleged.
Is the cause is due to the below reason:
"RETRY LIMIT EXCEEDED" ie., if the reliable packets is not acknowledged before 16 retransmissions and the HOLD TIMER duration has passed, re-initiate the neighbor.
Request your help / advices in advance.
Thanks & Regards,
Guru Prasad R