State : Down
Error Code : 6(CEASE)
Error Subcode : 6(Other Configuration Change)
Notification: Receive Notification
There can be multiple Subcode error, I will talk here error CEASE with Subcode other configuration changed, According to RFC 4486 - If a BGP speaker decides to administratively reset the peering with a neighbour due to a configuration change other than the ones described above, then the speaker SHOULD send a NOTIFICATION message with the Error Code Cease and the Error Subcode “Other Configuration Change“.
I hope this will be informative for you :)