How To Stop SNA Server From Retrying BIND Attempts
ID: Q250145
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The information in this article applies to:
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Microsoft SNA Server, versions 3.0 (all SP), 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3
SUMMARY
In some cases, you may want to stop SNA Server from retrying BIND attempts when an APPC or CPI-C application is attempting to establish a conversation.
One instance where it might be useful to stop the BIND retries is if APPC or CPI-C sessions are configured on the SNA Server to connect to a CICS region on the mainframe, and the CICS region is down. By default, the SNA Server tries to reestablish the sessions until the region is available. This behavior can cause unwanted network traffic and can cause the Event Log on the server to fill up with Event 18 messages reporting failed BIND attempts.
NOTE: SNA Server 4.0 and later will not log multiple Event 18 messages for each failed BIND attempt on the same LU/LU/Mode triplet.
MORE INFORMATION
IMPORTANT: This article contains information about editing the registry.
Before you edit the registry, make sure you understand how to restore it if
a problem occurs. For information about how to do this, view the "Restoring
the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help
topic in Regedt32.exe.
WARNING: Using Registry Editor incorrectly can cause serious problems that
may require you to reinstall your operating system. Microsoft cannot
guarantee that problems resulting from the incorrect use of Registry Editor
can be solved. Use Registry Editor at your own risk.
For information about how to edit the registry, view the "Changing Keys and
Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete
Information in the Registry" and "Edit Registry Data" Help topics in
Regedt32.exe. Note that you should back up the registry before you edit it.
If you are running Windows NT, you should also update your Emergency
Repair Disk (ERD).
To stop continuous BIND retries, add the following registry entry to the SNA Server:
- Start Registry Editor (Regedt32.exe).
- Locate the following key in the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SnaServr\Parameters
- On the Edit menu, click Add Value, and then add the following registry values:
Value Name: BINDRETRY
Data Type: REG_DWORD
Value: 0
- Quit Registry Editor and restart the Snaservr service to activate the changes.
With this registry change SNA Server sends a BIND request when an APPC or CPIC application sends [MC]ALLOCATE or CMALLC, but it will not retry if the BIND attempt fails.
Additional query words:
Keywords : kbsna
Version : WINDOWS:3.0 (all SP),4.0,4.0 SP1,4.0 SP2,4.0 SP3
Platform : WINDOWS
Issue type : kbhowto