The information in this article applies to:
SYMPTOMSAn SNA Server computer using an SDLC Link Service for host connections may log the following message in the Windows NT application event log at random intervals: The description also lists the number of allocated trusted headers. Each successive Event 684 shows a larger number of allocated trusted headers. Eventually the allocated trusted headers will reach the maximum value, and the connection to the host will be lost. At this point, the following message will be logged in the application event log: A trace of the SDLC Link Service shows numerous DLCST UPSN messages (update station statistics) being sent to the SNA Server service. For more information about DLCST UPSN messages, refer to the following Microsoft Knowledge Base article: Q139594 Meaning of "DLCST UPSN" in an SNA Server Data Link Control Trace CAUSE
Messages from the Link Service are being placed into the buffer pool much
faster than the SNA Server service can process them. This is usually caused
by a problem elsewhere in the system, for example, in the SDLC adapter or
driver. However, SNA Server should deal with this situation without
dropping the host connection.
STATUS
Microsoft has confirmed this to be a problem in SNA Server version 3.0
Service Pack 2 and earlier.
S E R V P A C K Additional query words:
Keywords : kbbug2.00 kbbug3.00 kbfix3.00.sp3 kbbug2.11 snasdlc |
Last Reviewed: September 22, 1999 © 2000 Microsoft Corporation. All rights reserved. Terms of Use. |