Sense code 0852

Duplicate session activation request: Two session activation requests have been received with related identifiers. The relationship of the identifiers and the resultant action varies by request.

Bytes 2 and 3 following the sense code contain sense-code-specific information.
0000
No specific code applies.
VTAM® hint:
  • If the RU is an ACTPU or ACTCDRM, it means that a session has already been activated for the subject destination-origin pair by a session activation request that carried a larger activation request identifier than the current request; the current request is refused.
  • If the RU is an ACTLU, a session has already been activated for the subject destination-origin pair by a session activation request. The current request is denied.
  • If the RU is a BIND, it means that the BIND request was received with the same session-instance identifier (in the structured subfield X'03' of the user data field) as an active session’s; the current request is refused.
0001
Received a second BIND from a peripheral node PLU while the session is still in the activation process.
0002
A REQACTPU has been received by an SSCP that has already sent an ACTPU for the same PU.