I am trying to understand in more detail what occurs when a CSS times out a flow. Looking at sniffer traces on both sides of the CSS (running release 8.2) it appears the CSS does not of itself initiate any FIN or reset of both sides of the connection when a timeout occurs; I do see a TCP reset sent to the client side from the CSS if the client attempts to send more data via a flow that has timed out; however I never see any sort of clearing or reset on the backend to the server to clear the connection from the CSS to the server.
This is becoming an issue for us as we are troubleshooting a new app which appears to run for long periods of time without any traffic or keepalives. We can address this by upping the flow timeout, but if this timeout is bypassed and the FCBs recovered, we need to know if the CSS can also be configured to close the connections it is proxying, or if this will remain open even though the flow is inactive.
Please let me know if this is referenced in detail in the CSS doc; I have not found it anywhere yet.
Thanks for your help!