IRULES - LB::reselect

hello,

When "lb::down" command is executed. Normaly on "network map" i can see my node is down or no?

Because when my irule is active on my pool.

All request is retry and i haven't error during my load test.

But all node up on "network map". There is no down node

My new code is correcte or no?

when HTTP_REQUEST {
    set poolname "TEST"
    set fqdn "TEST.com"
    if { [string tolower [HTTP::host]] equals $fqdn }
    {
        set request_headers [HTTP::request]
        pool $poolname
    }
}

when HTTP_RESPONSE {
  set currentnode [LB::server addr]
  set portnumber "80"
  if { ([HTTP::status] == 500) or ([HTTP::status] == 404) or ([HTTP::status] == 503) }
     {
      LB::down pool $poolname member $currentnode $portnumber
      HTTP::retry $request_headers
      log "Server $poolname $currentnode $portnumber down!"
     }
}

thank you.