Session on F5 load balancer

Your best bet is the CLI tmsh show sys connection command. In your case, if you want to see which connections are going to which pool members based on a specific Virtual Server ip address, something like should suffice;

[tmsh] show sys connection cs-server-addr ip.ip.ip.ip

Other options include;

...(tmos) show sys connection ?

Properties:
  age              cs-client-port   cs-server-port   ss-client-addr   ss-server-addr   type 
  cs-client-addr   cs-server-addr   protocol         ss-client-port   ss-server-port   {