BGP: Connection collision resolution

I was doing couple of tests on BGP protocol today between two EBGP peers and monitoring the BGP trace file I enabled on my Junos box during which I have seen the following NOTIFICATION being sent by one of the peers.

I don’t recall of having seen this BGP NOTIFICATION before actually. Looking at RC4271 reveals why this occurs.

To prevent further race conditions like this from happening in the future, apparently setting the option “passive” for one of the peer allows us not to initiate BGP connection from both peers but only from active side.

One thought on “BGP: Connection collision resolution

  1. shubham Jadhav

    When i am applying command show router 4755 bgp neighbor o router, observing last error Cease (Connection Collision Resolution).
    What does it mean??


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