IST727I
COMMUNICATION WITH CDRM cdrmname LOST — REASON = X'code'

Explanation

The session with CDRM cdrmname has been disrupted by the session outage notification (SON). The reason for the disruption is shown by the reason code code (expressed in hexadecimal). code is part of the DACTCDRM request and can be any of the following:
code
Meaning
07
Virtual route inoperative: The virtual route carrying the SSCP-PU session has become inoperative, forcing deactivation of the SSCP-PU session.
0B
Virtual route deactivation: The identified SSCP-PU session had to be deactivated because of a forced deactivation of the virtual route being used by the SSCP-PU session.
0C
SSCP failure—unrecoverable: The identified SSCP-SSCP session had to be deactivated because one of the session’s SSCPs abnormally terminated; recovery from the failure was not possible.
0D
Session override: The SSCP-PU session had to be deactivated because of a more recent session activation request for the same session over a different virtual route.
0E
SSCP failure—recoverable: The identified SSCP-SSCP session had to be deactivated because of an abnormal termination of one of the SSCPs of the session; recovery from the failure might be possible.
0F
Cleanup: The SSCP is resetting its half-session before receiving the response from the partner SSCP receiving the DACTCDRM.
10
SSCP contention: Two SSCPs have sent each other an ACTCDRM request over different virtual routes; the SSCP receiving the ACTCDRM from the SSCP with the greater SSCP ID (SSCPID start option) sends DACTCDRM, with code X'10', to the other SSCP over the same virtual route on which the contention-losing ACTCDRM was sent.
11
Gateway node cleanup: A gateway node is cleaning up the session because the gateway SSCP session partner has forced deactivation of the session (via NOTIFY).

System action

The session with CDRM cdrmname is deactivated without disrupting active LU-LU sessions.

Operator response

Save the system log and network logs and print the CDRM definition for problem determination. Issue a VARY ACT command for CDRM cdrmname so that the session can be re-established.

System programmer response

Consult SNA Formats for the RU formats, especially DACTCDRM and its reason codes. The meaning of the reason code, cause is found under the explanation of DACTCDRM.

Routing code

8

Descriptor code

4