Experimental Physics and
Industrial Control System

Geoff,

If you abruptly shutdown the client by turning off the workstation
then the TCP state machine will not sequence through its normal
exit protocol. This will leave resources allocated in the server
until the TCP keep alive sequence is initiated. It usually takes 
about 30 default minutes for the TCP keep alive timer to expire, 
but this will vary depending on the configuration of your IP kernel.

Jeff

> -----Original Message-----
> From: Geoff Savage [mailto:[email protected]]
> Sent: Friday, July 06, 2001 2:48 PM
> To: [email protected]
> Subject: lingering ca connections on iocs
> 
> 
> We have noticed that clients that don't exit gracefully retain their
> connections on the IOC.  We use the casr command on the IOC to see that
> although the client is dead the IOC still has resources allocated for
> it.  Should these rousources be freed after a period of time?
> 
> Thanks
> 
> Geoff

References:

lingering ca connections on iocs Geoff Savage

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