port_DUS: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 21.0.2.2  netmask 255.255.255.0  broadcast 21.0.2.255
        inet6 fe80::98c3:3fff:fe9d:90cd  prefixlen 64  scopeid 0x20<link>
        ether 9a:c3:3f:9d:90:cd  txqueuelen 1000  (Ethernet)
        RX packets 407  bytes 32179 (31.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 427  bytes 32532 (31.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0