TCL error - no such pool

Thanks very much for your help Kevin.

Meanwhile, I think it´s a good idea the way you verify pool member status and how it is selected. It´s not needed to look for the pool member in a list, because it´s hardcoded into cookie value. So I have tried to use that portion of your code into iRule I was testing:

HTTP_REQUEST {
    if { [HTTP::cookie exists "ACCM"] } {
                  set need_cookie 0
        set decrypted [HTTP::cookie decrypt "ACCM" "skyisblue"]
        if { ($decrypted ne "") } {
                      set persist_node [HTTP::cookie "ACCM"]
                        log local0. "Pool: [LB::server pool], server: $decrypted ,port: [LB::server port]"
                        if { [LB::status pool [LB::server pool] member $decrypted [LB::server port]] eq "up" } {
                pool [LB::server pool] member $decrypted [LB::server port]
            } else {
                    set need_cookie 1
            }
        }
    } else {
         set need_cookie 1
         }
}
when LB_FAILED {
         set need_cookie 1
    LB::reselect
}
when HTTP_RESPONSE {
   if { $need_cookie } {
       HTTP::cookie insert name "ACCM" value [IP::remote_addr] path /
       HTTP::cookie encrypt "ACCM" "skyisblue"
       HTTP::cookie expires "ACCM" 86400
   }
}

As you can see, I have configured a log local0. in order to obtain pool name, selected server and server port. Taking a view to ltm log, I can see log messages in which port always is 0. I don´t know why [LB::server port] returns 0 value:

Oct  4 10:34:22 slot1/LTMPRE1 info tmm[10605]: Rule /Common/iRULE_PERSISTENCE_HTTP_HTTPS_ACCM : Pool: /CISCOPRE/ACCMOINSA_HTTP, server: 192.168.202.223%10 ,port: 0
Oct  4 10:34:22 slot1/LTMPRE1 info tmm[10605]: Rule /Common/iRULE_PERSISTENCE_HTTP_HTTPS_ACCM : Pool: /CISCOPRE/ACCMOINSA_HTTP, server: 192.168.202.223%10 ,port: 0

Am I doing something wrong??

B.R.