Connection Rate Limit with log output

You can use following iRule to log after exceed configured rate limit  there will appear a new log matching source IP dropped

when LB_FAILED {
    set vs_name     [virtual name]
    set client_ip   [IP::client_addr]
    set client_port [TCP::client_port]

    log local0. "FTP-FORENSIC|L4_FAILED|$vs_name|$client_ip:$client_port|LB_FAILED"
}
}