What is a BGP Notification Message?

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Multiple Choice

What is a BGP Notification Message?

Explanation:
BGP Notification messages are the protocol’s error-reporting mechanism. When a BGP speaker detects a problem—such as a malformed message, an unsupported version, invalid or unexpected attributes, or another protocol violation—it sends a NOTIFICATION to the peer. This message includes an error code and a subcode that identify the specific condition. After sending the NOTIFICATION, the BGP session is closed immediately, and no further normal BGP messages are exchanged on that connection. This is distinct from updating routes (which uses UPDATE messages), establishing a session (which uses OPEN), or keeping a session alive (which uses KEEPALIVE).

BGP Notification messages are the protocol’s error-reporting mechanism. When a BGP speaker detects a problem—such as a malformed message, an unsupported version, invalid or unexpected attributes, or another protocol violation—it sends a NOTIFICATION to the peer. This message includes an error code and a subcode that identify the specific condition. After sending the NOTIFICATION, the BGP session is closed immediately, and no further normal BGP messages are exchanged on that connection. This is distinct from updating routes (which uses UPDATE messages), establishing a session (which uses OPEN), or keeping a session alive (which uses KEEPALIVE).

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