Hi,guys,I hava received a BGP NOTIFICATION with error code 6/6.What's meaning error code 6/6 ? OR What kind of is the error ? For example,if there is a wrong AS,the error code is 2/2.
Oct 21 03:52:30.733 UTC: %BGP-3-NOTIFICATION: received from neighbor 22.214.171.124 6/6 (cease) 0 bytes
Oct 21 03:52:30.733 UTC: %BGP-5-ADJCHANGE: neighbor 126.96.36.199 Down BGP Notification received
Oct 21 03:53:22.506 UTC: %BGP-5-ADJCHANGE: neighbor 188.8.131.52 Up
The 6/6 means other configuration change if you look at the RFC.
The (cease) is when the remote peer has an administratively shutdown. I already get it in production, so I made a test to be sure.
With two Cisco router you do not have the notification. But if you deactivate the bgp neighbor on a Juniper you have :
*Mar 1 00:14:41.363: BGP: 192.168.1.2 rcv message type 3, length (excl. header) 2
*Mar 1 00:14:41.363: %BGP-3-NOTIFICATION: received from neighbor 192.168.1.2 6/3 (cease) 0 bytes
*Mar 1 00:14:41.367: BGP: 192.168.1.2 went from Established to Closing
I have a 6/3 so it seem the Juniper correctly send the notification. Do you now what device is in front of yours ?
The RFC 4271 explain the NOTIFICATION's Error code 6 is cease,but not explain the Error subcode 6.I have received this NOTIFICATION on GSRs.So I don't down What types of NOTIFICATION is 6/6