str = format (0, "[%U] %U:%d->%U:%d", format_transport_proto_short,
key->proto, format_ip4_address, &key->src,
clib_net_to_host_u16 (key->src_port), format_ip4_address,
str = format (0, "[%U] %U:%d->%U:%d", format_transport_proto_short,
key->proto, format_ip4_address, &key->src,
clib_net_to_host_u16 (key->src_port), format_ip4_address,