Explanation
This message is issued in these different situations:
- As part of several message groups that VTAM® issues in response to DISPLAY ID or DISPLAY
TRL commands.
- As the first message in a message group that is issued when an IBM® 10GbE RoCE Express® interface becomes inoperative.
- As part of a message group that VTAM issues
when it detects the failure of a Shared Memory Communications - Remote
Direct Memory Access (SMC-R) link.
When this message is issued in response to a DISPLAY
command, this message is displayed for all TRLEs that are currently
being used by at least one Upper-layer Protocol (ULP). A separate
message IST1717I will be displayed for each ULP using this TRLE.
- For a dynamic TCP TRLE, or an exclusively owned TRLE, only one
message with ULPID is issued, because there can only be one ULP using
each of these TRLEs.
- For an OSA-Express Adapter,
one message with ULPID is issued for each Datapath channel address
in use by a ULP.
- For other TRLEs, more than one message with ULPID might be issued,
depending on how many upper-layer protocols are using the TRLE.
When this message is issued in response to a 10GbE RoCE Express interface becoming inoperative,
it is the first message in this message group:IST1717I ULPID = ulp_id ULP INTERFACE = ulp_interface
IST1578I inoptype INOP DETECTED FOR trlename BY modname CODE = code
When
this message is issued in response to an SMC-R link failure, this
message is displayed to identify the TCP/IP stack associated with
the failing SMC-R link. See message IST2406I for
an explanation of the message group.
IST1717I
This
message provides ULP information.
- ulp_id
- Specifies the name of a z/OS® Communications
Server ULP that is using the TRLE, the SMC-R link, or one of the datapath
channels of an OSA-Express TRLE.
- For TCP/IP ULPs, the ulp_id is the job name.
- For ANNC ULPs, the ulp_id is the SNA PU name.
- For ATM or EE ULPs, the ulp_id is the XCA major
node name.
- ulp_interface
- Specifies the name of either the interface or the device that
is using the TRLE, the SMC-R link, or one of the datapath channels
of an OSA-Express TRLE.
- For TRLEs with MPCLEVEL=QDIO, ulp_interface is
the name of the interface dedicated to this datapath channel address
of the OSA-Express TRLE.
- For TRLEs with CONTROL=ROCE, ulp_interface is
the name of the interface dedicated to the 10GbE RoCE Express TRLE.
- For all other TRLEs, ulp_interface is *NA*.
- For SMC-R links, ulp_interface is the name
of the 10GbE RoCE Express interface
that was being used by the failing link.
For detailed instructions about setting up
an OSA-Express feature,
see the zEnterprise System and System z10 OSA-Express
Customer's Guide and Reference.
IST1578I
This message
provides information about the inoperative condition for a 10GbE RoCE Express interface for the TCP/IP
stack represented by
ulp_id.
- inoptype
- Specifies the type of inoperative condition. In this message group,
the only possible value is DEVICE.
- trlename
- Specifies the name of the TRLE definition statement in the TRL
major node that defines the system-generated TRLE that represents
the 10GbE RoCE Express interface.
- modname
- Specifies the name of the module that detected the inoperative
condition.
- code
- Identifies the point in modname where the inoperative
condition was detected.
See message IST1578I for
more details.
System action
- When this message is issued in response to a DISPLAY command,
processing continues.
- When this message is issued in response to a 10GbE RoCE Express interface becoming inoperative,
the 10GbE RoCE Express interface
is deactivated. The TCP/IP stack might attempt recovery of the 10GbE
RoCE Express interface.
- When this message is issued in response to an SMC-R link failure,
processing continues. See message IST2406I for
more details.
Operator response
- When this message is issued in response to a DISPLAY command,
none.
- When this message is issued in response to a 10GbE RoCE Express interface becoming inoperative,
no further action is required. If recovery fails, save the system
log for problem determination.
- When this message is issued in response to an SMC-R link failure,
contact the system programmer.
System programmer response
- When this message is issued in response to a DISPLAY command,
none.
- When this message is issued in response to a 10GbE RoCE Express interface becoming inoperative,
use code to determine the correct course of action. See
message IST1578I for
more details.
- When this message is issued in response to an SMC-R link failure,
use information in the IST2406I message group to determine the correct
course of action. See message IST2406I for
more details.
Routing code
Descriptor code