port_ZRH: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::1cca:20ff:fe90:987f  prefixlen 64  scopeid 0x20<link>
        ether 1e:ca:20:90:98:7f  txqueuelen 1000  (Ethernet)
        RX packets 8  bytes 816 (816.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8  bytes 816 (816.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0