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SYMPTOMSAn SNA Server Twinax connection, after being active, will go into a "Pending" status in the SNA Server Administrator program. When this occurs, Event ID 23, Qualifier 11, is logged to the Application Event log. This can occur with both the Andrew and IBM Twinax Link services. CAUSE
The problem is associated with a block of data inbound to the AS/400, which
has a length of 1025 decimal. The Twinax line protocol has a maximum
read/write length of 1024. This means the AS/400 asks for a block of 1024
characters and then a block of one character. It does the one-character
block by setting the Address Counter Register and the Reference Counter
Register to the same location and then performing a Read Between Limits
Command. This should result in a one-character block being sent out on the
Twinax line.
RESOLUTIONApply the fix referenced below. The fix is made to a routine called "DTPDCmdReadBetwLimits," which does the correct math locally to send the one-byte message instead of the invalid register value. STATUSMicrosoft has confirmed this to be a problem in SNA Server versions 2.0, 2.1, 2.11, and 2.11 SP1. This problem was corrected in the latest Microsoft SNA Server 2.11 U.S. Service Pack. For information on obtaining the service pack, query on the following word in the Microsoft Knowledge Base (without the spaces): S E R V P A C K MORE INFORMATIONThe third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability. Additional query words:
Keywords : kbnetwork kbbug2.00 kbbug2.11 kbbug2.11.sp1 snatwinax |
Last Reviewed: November 20, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |