What is comman equivalent to "Show connection" in Cisco ACE loadbalancer ?

Hmmm, I think you've misunderstood. The

tmsh show sys conn

command should amply meet your needs. In your case, you'd want to use the

cs-client-addr

parameter, so if the client IP was 1.1.1.1 the full command would be:

tmsh show sys conn cs-client-addr 1.1.1.1

. This will show you all entries in the connection table where 1.1.1.1 is the client side client. The output will show you the Virtual Server IP address and the associated Pool Member IP address for each connection.

Does that make sense?