OSI/AS Management Programming Manual

STATUS SU Command
Commands and Responses
056785 Tandem Computers Incorporated 5–273
ZTSP-TCON-STATE-AT-LAST-ERR
This field is present only if ZTSP-LAST-FS-ERRCODE is non zero. It records
the TSP state (as described in the OSI/TS STATUS SU command) at the time
of that error.
ZTSP-TCON-SUBSTATE-AT-LAST-ERR
This field is present only if ZTSP-LAST-FS-ERRCODE is non zero. It records
the TSP substate (as described in the OSI/TS STATUS SU command) at the
time of that error.
ZOSI-MAP-STATUS-SU-L5
is an extensible structured token that contains current Layer 5 status information
for the specified subdevice. If multiple Layer 5 subdevice names are specified in
the response buffer, then one of these tokens is returned for each subdevice name.
ZOSI-DDL-STATUS-SU-L5 contains the following fields:
ZLAST-ERR
is the last error detected by the Session Layer.
ZLAST-ERR-SUBCODE
is the error subcode of the last error detected by the Session Layer.
ZVACT
is the Vact session protocol variable, which indicates whether an activity is in
progress. If this field is set to ZSPI-VAL-TRUE, an activity is in progress; if it
is set to ZSPI-VAL-FALSE, no activity is in progress.
ZVNEXTACT
is the Vnextact session protocol variable, which is the next value of Vact when
a Major Sync Ack session protocol data unit (SPDU) is sent or received. If this
field is set to ZSPI-VAL-TRUE, the activity functional unit has been selected
and a major synchronization point SPDU has been sent or received. If this
field is set to ZSPI-VAL-FALSE, the activity functional unit has been selected
and an activity end SPDU has been sent or received.
ZVSC
is the Vsc session protocol variable, which indicates whether the local
application is allowed to issue minor synchronization point responses. If this
field is set to ZSPI-VAL-TRUE, a minor synchronization point SPDU has been
received and the local application is allowed to issue minor synchronization
point responses when ZVA is less than ZVM. If this field is set to ZSPI-VAL-
FALSE, the local application is not allowed to issue minor synchronization
point responses. ZVSC is set to ZSPI-VAL-FALSE during the connection
establishment phase and when a minor synchronization point has been sent.