DOCUMENT:Q172237  14-MAR-2000  [sna]
TITLE   :Changing Link Service Properties Doesn't Update Com.cfg File
PRODUCT :Microsoft SNA Server
PROD/VER:WINDOWS:3.0,3.0 SP1
OPER/SYS:
KEYWORDS:kbnetwork

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The information in this article applies to:

 - Microsoft SNA Server, versions 3.0, 3.0 SP1 
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SYMPTOMS
========

When a link service is initially created, the configuration file com.cfg
receives a service table update message notifying it of the new link service, as
well as a few parameters such as the DLC type and SDLC line type. If these
settings are modified later, the changes are not recorded back to the com.cfg
file.

Examples:

 - When an Ethernet 802.2 link service is installed, and a connection is
   created, the property page of the connection in SNA Server Manager indicates
   an Ethernet link service is being used. If the link service is changed from
   Ethernet to Token Ring, the conffiguration file com.cfg is not updated
   properly; therefore the connection still indicates an Ethernet connection.

 - Modifications made to SDLC connections, such as changing the link service
   from "switched" to "leased" are also not be reflected in SNA Server Manager.

CAUSE
=====

SNA Server Manager is not properly notified of these changes and therefore they
are not reflected in the Com.cfg file.

STATUS
======

Microsoft has confirmed this to be a problem in SNA Server versions 3.0 and 3.0
Service Pack 1 (SP1). This problem was corrected in the latest SNA Server
version 3.0 U.S. Service Pack. For information on obtaining this Service Pack,
query on the following word in the Microsoft Knowledge Base (without the
spaces):

   S E R V P A C K

MORE INFORMATION
================

With the fix applied, SNA Server Manager is notified and the com.cfg file is
updated when changes to DLC link services are made. Changing an SDLC line from
"leased" to "switched" or vice-versa is no longer allowed. Instead, the link
service must be deleted and re-added.


Additional query words:

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Keywords          : kbnetwork 
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ300SP1
Version           : WINDOWS:3.0,3.0 SP1
Issue type        : kbbug
Solution Type     : kbfix

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