Virtual Server as a Memeber in a Load Balancing Pool, Load Balancing (Round Robin) via iRule to another Virtual Server

I've been thinking about to use default pool and built-int load balance, but I don't know the real impact to connect and detach from vs.

You may try this second option but take care and test it before apply on production.

Regards.

# Default pool: pool_probe_vs_loadbalance
when HTTP_REQUEST {
    LB::connect
    set member "[LB::server addr]:[LB::server port]"
    LB::detach
 
    switch ${member} {
        "10.10.10.1:80" { 
            virtual vs_name1
        }
        "10.10.10.2:80" { 
            virtual vs_name2
        }
        "10.10.10.3:80" { 
            virtual vs_name3
        }
        default {
            log local0.err "FAIL to map vistual server"
        }
    }
}