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Q181650: Context_rundown Called in RPC Server When RPC Client Idles

Article: Q181650
Product(s): Microsoft Windows NT
Version(s): WinNT:3.51,4.0
Operating System(s): 
Keyword(s): kbnetwork kbAPI kbRPC kbSDKPlatform kbGrpDSNet
Last Modified: 09-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server versions 3.51, 4.0 
- Microsoft Windows NT Workstation versions 3.51, 4.0 
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SUMMARY
=======



SYMPTOMS
========

Your Remote Procedure Call (RPC) server's context_rundown() function is called
when your RPC client is inactive for more 5 minutes and uses either ncadg_ip_udp
or ncadg_ipx as the communication protocol sequence.

CAUSE
=====

This behavior is by design. When this timeout is reached, your RPC server
assumes that the client is no longer available.

RESOLUTION
==========

To avoid your RPC server from invoking your context_rundown() function, your RPC
client needs to issue remoted function calls to your server periodically so that
it does not go idle for more than 5 minutes.

The context handle time-out described in the following Microsoft Knowledge Base
article concerns RPC communication using ncacn_ip_tcp not ncadg_ip_udp.

  ARTICLE-ID: Q151714
  TITLE : WinNT RPC Client May Fail Against DCE Server

Additional query words: context, rundown, ncadg_ip_udg, ncadg_ipx

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Keywords          : kbnetwork kbAPI kbRPC kbSDKPlatform kbGrpDSNet 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT400search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS351search
Version           : WinNT:3.51,4.0
Issue type        : kbprb

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