Forum Discussion

Jonathan_c's avatar
Jonathan_c
Icon for Cirrus rankCirrus
Feb 14, 2023
Solved

APM session inactivity timeoute VS. TCP idle timout

Hi, I'm confused by these two settings and the relation between them. I have a VS with client and server TCP profile which has 600 seconds Idle Timeout (the keep alive interval is 1800 seconds, so ...
APM
application delivery
idle timeout
Inactivity timeout
LTM
  • PSFletchTheTek's avatar
    PSFletchTheTek
    Feb 14, 2023

    So APM works on logged in sessions, and users but from that the application might open many tcp connections to service that session.
    So really its contextualisation of what APM is doing (Access) and ltm is doing (connections).

    So your timer question, many tcp connections may have been opened and closed but you have never logged out of APM therefore your session is still open.

    Hope that helps, i've had to fault find APM one or two times and its always diffcult trying to get it all to line up.

    But that's more the application and how it works rather than the f5 APM module.

PSFletchTheTek's avatar
PSFletchTheTek
Icon for MVP rankMVP
Feb 14, 2023

So APM works on logged in sessions, and users but from that the application might open many tcp connections to service that session.
So really its contextualisation of what APM is doing (Access) and ltm is doing (connections).

So your timer question, many tcp connections may have been opened and closed but you have never logged out of APM therefore your session is still open.

Hope that helps, i've had to fault find APM one or two times and its always diffcult trying to get it all to line up.

But that's more the application and how it works rather than the f5 APM module.