packet-generator new { \ name x \ limit 1 \ node ip4-input \ size 64-64 \ data { \ ICMP: 1.0.0.2 -> 2.0.0.2 \ ICMP echo_request \ incrementing 100 \ } \ } trace add pg-input 100 loop create loop create set int state loop0 up set int state loop1 up set int ip address loop0 1.0.0.1/24 set int ip address loop1 2.0.0.1/24