The information in this article applies to:
SUMMARY
When SNA Server is configured with independent APPC LU6.2 sessions, SNA
Server will automatically initiate LU6.2 session negotiation with the
remote system for each configured LU/LU/mode pair when the connection is
started. The independent LU6.2 LUs require an initial SNA Service Manager
(SNASVCMG) mode BIND between the LUs in order for session limit (CNOS)
negotiation to take place.
If the remote system is not currently active (for example, if the remote system is CICS though the CICS region has been brought down for maintenance), the Event 18 will be logged for each BIND failure. The SNA Server NOINITCNOS registry setting can be set to prevent these repeated Event 18 errors. MORE INFORMATIONSNA Server supports a registry entry that disables automatic LU6.2 session negotiation using the NOINITCNOS registry setting, as documented in the SNA Server [ASCII 147]Reference Guide,[ASCII 148] page 195 (in Appendix C). This will cause SNA Server to perform LU6.2 session negotiation only when an application requests a conversation over an LU/LU pair.
If this entry is not present in the registry, it defaults to No.
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