get actual connection count by an irule

Hi, I dont think there is any other way to do this than a global TMM variable.

What do you mean by a session? You mean a TCP connection?

Assuming you mean TCP connection by "session", then in your irule you would init the RULE_INIT event. IN that rule you would init a global variable such as $TOTAL_CONN_CNT. Then you would create the CLIENT_ACCEPTED event and increment/decrement the TOTAL_CONN_CNT based on the creation and destruction of the TCP connections handled by the irule.

You can do it this way, or you can not do it at all