Thank you - but what is the solution to my problem or is there one? By the sounds of it I need to change out the IOS to a new version....;)
-----Original Message----- From: Christophe Fillot [mailto:[email protected]] Sent: Friday, April 03, 2009 10:01 AM To: Paul Stewart Cc: [email protected] Subject: Re: [c-nsp] BGP Cease - Connection collision resolution Paul Stewart wrote: Hi, > On a peering session we started getting the following: > > > > %BGP-3-NOTIFICATION: received from neighbor 198.32.XXX.XX 6/7 (cease) 0 > bytes > > > > This all started when we "upgraded" to 12.2(18)SXF16 it seems or at least > the timeline matches up.. > > > > So, I've discovered that 6/7 means "Connection collision resolution" - does > anyone know what that means in English? ;) We have rebuilt our session and > the peer has done the same thing. a Google search tells me what it means by > definition but no real solution. > > > From RFC 4271: 6.8. BGP Connection Collision Detection If a pair of BGP speakers try to establish a BGP connection with each other simultaneously, then two parallel connections well be formed. If the source IP address used by one of these connections is the same as the destination IP address used by the other, and the destination IP address used by the first connection is the same as the source IP address used by the other, connection collision has occurred. In the event of connection collision, one of the connections MUST be closed. [...] Closing the BGP connection (that results from the collision resolution procedure) is accomplished by sending the NOTIFICATION message with the Error Code Cease. _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
