iRule redirect to another vip with same IP but diffrent port

Hi all, i need to set an iRule to a VS because we want to balance incoming traffic to a specific pool, but if the request have "/XXX" in the string, the connection has to be redirected to another VS with another application port;

 

Here's what i mean:

 

when HTTP_REQUEST { if {[HTTP::uri] equals "/XXX"} {HTTP::redirect "-IDK-"} else { use pool pool_SERVICE_PORT } }

 

where "-IDK-" is for "I does not know what's proper"

 

gimme an hand, pliiiiiiiiiis!