DSPU Reconnect Failure After An Outage (163519)
The information in this article applies to:
- Microsoft SNA Server 2.0
- Microsoft SNA Server 2.1
- Microsoft SNA Server 2.11
- Microsoft SNA Server 2.11 SP1
This article was previously published under Q163519 SYMPTOMS
Downstream physical unit (DSPU) fails to recover its connection to SNA
Server after a link failure between the two devices.
CAUSE
When SNA Server receives a format 3 XID from an incoming DSPU that
specifies a secondary link station role without preceding it with a
negotiable XID, the SNA Server may cause a SABM(E) to be sent immediately
without first sending its own format 3 XID. This causes the DSPU to drop
the connection.
RESOLUTION
An update to SNA Server ensures that SNA Server always sends at least one
non-NULL XID.
STATUS
Microsoft has confirmed this to be a problem in SNA Server versions 2.0,
2.1, 2.11 and 2.11 Service Pack 1 (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):
| Modification Type: | Major | Last Reviewed: | 11/26/2003 |
|---|
| Keywords: | kbbug kbfix kbnetwork KB163519 |
|---|
|