LTM keeps more connection then "Maximum Pool Size"

Hi,

I have an issue with an ltm 10.2.0 virtual server configured in performance http. The oneconnect profile is set with a "Maximum Pool Size" of 400. The ltm opens as much connections as it can regardless of that limit. So much that it reaches the backend's max client (1000) with idle server-side flow.

I can't find any known issue ? If anyone as already encountered this problem, please let me know.

Thanks