Only one SDLC connection to a Downstream PU (DSPU) will function correctly
even though multiple SDLC connections are configured for concurrent usage
to multiple DSPUs over the same SDLC adapter. Even though only one
connection is actually in use at a time, SNA Server Manager shows an active
status for all of the configured DSPU SDLC connections. This was reported
by a customer using the IBM MPCA SDLC adapter, but can occur with any SDLC
adapter that uses the SDLC "dumb card" driver interface provided by SNA
SNA Server 3.0
To resolve this problem, obtain the latest service pack for SNA Server version 3.0. For additional information, click the following article number to view the article in the
Microsoft Knowledge Base:
How to Obtain the Latest SNA Server Version 3.0 Service Pack
SNA Server 4.0
This problem was corrected in the latest SNA Server version 4.0 U.S.
Service Pack. For information on obtaining this Service Pack, query on the
following word in the Microsoft Knowledge Base (without the spaces):
Microsoft has confirmed this to be a problem in the products listed at the
beginning of this article.
This problem was first corrected in SNA Server 3.0 Service Pack 4.