This message is issued when VTAM® detects an LU-LU session that has met or exceeded the threshold defined by the EXPFLTRM start option. The EXPFLTRM start option defines the number of expedited data flow control (DFC) and session control (SC) request units (RU) that a boundary-attached LU can send without receiving a response from the partner LU.
luname is the name of the LU whose LU-LU session is deactivated
The LU-LU session is deactivated.
Contact the system programmer.
If this message is issued repeatedly for the same LU, the LU should be investigated for possible emulator or hardware problems. Alternatively, if the EXPFLTRM start option value is too small for your environment, you can increase the defined value of the EXPFLTRM threshold in the ATCSTRxx start option file used to initialize VTAM. See the EXPFLTRM start option information in z/OS Communications Server: SNA Resource Definition Reference for more information.
The EXPFLTRM start option value can be modified to a larger value with the MODIFY VTAMOPTS command. See the MODIFY VTAMOPTS command information in z/OS Communications Server: SNA Operation.
z/OS® Communications Server SNA
You can display the module that issues a SNA message in the message by setting the MSGMOD start option to YES. See Adding the originating module to the message text for more information about the MSGMOD start option.
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