I have two P2P links both running parellel from router rtrA=======rtrB. The second link (backup)always hangs in exchange state with too many retransmittions. I am fairly new to OSPF, i think this is because both links are fighting to be the BDR. Not sure what to do. Any suggestions appreciated.
I am puzzled about a couple of things. Your original post described a problem of hanging in Exchange State with too many retransmissions. But this debug does not show that at all.
I am also puzzled about the interfaces. You described the interfaces as P2P but the debug contains information about activity on interface VLAN 50. A VLAN interface would be treated by OSPF as a broadcast interface and would go through the process of election of BDR and DR. Did you describe the interfaces as P2P because they are /30 have have only a single neighbor or are they truly P2P. Posting the output of show ip ospf interface would probably be the best way to resolve this question.
The debug output shows the neighbors going to 2WAY state. This is not necessarily a problem. I would suggest that you shut down the interface on one router, start the debug, no shut the interface, and let the debug run until the situation has stabilized. That should give us better information about the problem.
%OSPF-5-ADJCHG: Process x.x.x.x, Nbr x.x.x.x on FastEthernet7/1 from EXCHANGE to DOWN, Neighbor Down: Dead timer expired
This is from my Core which has 2 P2P wireless links to a Cisco 3750, which i have access ports with vlans. The only reason i feel there is issue is due to logging adj. This causes my logs to fill with neighbor on F7/1 bouncing.
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