Context_rundown Called in RPC Server When RPC Client Idles

ID: Q181650

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

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

Keywords : kbnetwork kbAPI kbRPC kbSDKPlatform kbGrpNet
Version : WinNT:3.51,4.0
Platform : winnt
Issue type : kbprb