app_name = application_name_from_index (app_wrk->app_index);
str = format (0, "[%U] %U:%d", format_transport_proto_short, key->proto,
format_ip4_address, &key->src,
app_name = application_name_from_index (app_wrk->app_index);
str = format (0, "[%U] %U:%d", format_transport_proto_short, key->proto,
format_ip4_address, &key->src,