Forum Discussion

Joel_Newton's avatar
Joel_Newton
Icon for Cirrus rankCirrus
Oct 18, 2016

iRule still executing for current browser session after being removed from virtual server

We're experiencing this behavior for a maintenance iRule that is frequently added to and removed from virtual servers. This primarily seems to occur when the same browser session is used. Starting a ...
application delivery
irules
LTM
Walter_Kacynski's avatar
Walter_Kacynski
Icon for Cirrostratus rankCirrostratus
Oct 18, 2016

This is the behavior of iRule design as they are cached per TCP flow. This is why starting a new browser session "works" by creating a new TCP socket. To force this to clear out, you could use an 

HTTP::respond Connection close
in your iRule to create a new socket for every request. Depending on your traffic volume this could cause additional load due to the increased overhead of generating new socket connections.