SUBSCRIBE_ANNOUNCES_ERROR

A publisher sends a SUBSCRIBE_ANNOUNCES_ERROR control message in response to a failed SUBSCRIBE_ANNOUNCES.

SUBSCRIBE_ANNOUNCES_ERROR Message {
  Type (i) = 0x13,
  Length (i),
  Request ID (i),
  Error Code (i),
  Error Reason (Reason Phrase)
}

• Request ID: The Request ID of the SUBSCRIBE_ANNOUNCES this message is replying to Section 8.24.

• Error Code: Identifies an integer error code for the namespace subscription failure.

• Error Reason: Provides the reason for the namespace subscription error. See Section 1.3.3.

The application SHOULD use a relevant error code in SUBSCRIBE_ANNOUNCES_ERROR, as defined below:

• Internal Error - An implementation specific or generic error occurred.

• Unauthorized - The subscriber is not authorized to subscribe to the given namespace prefix.

• Timeout - The operation could not be completed before an implementation specific timeout.

• Not Supported - The endpoint does not support the SUBSCRIBE_ANNOUNCES method.

• Namespace Prefix Unknown - The namespace prefix is not available for subscription.

• Namespace Prefix Overlap - The namespace prefix overlaps with another SUBSCRIBE_ANNOUNCES in the same session.

• Malformed Auth Token - Invalid Auth Token serialization during registration (see Section 8.2.1.1).

• Unknown Auth Token Alias - Authorization Token refers to an alias that is not registered (see Section 8.2.1.1).

• Expired Auth Token - Authorization token has expired Section 8.2.1.1).