BGP uses the cease subcode in notification message to convey the reason for terminating the session. The cease subcodes currently supported are given in Supported Cease Subcodes.
Supported Cease Subcodes
Subcode | Description | Supported? |
---|---|---|
1 | Maximum Number of Prefixes Reached | Yes |
2 | Administrative Shutdown | Yes |
3 | Peer De-configured | Yes |
4 | Administrative Reset | No |
5 | Connection Rejected | Yes |
6 | Other Configuration Change | No |
7 | Connection Collision Resolution | Yes |
8 | Out of Resources | No |