port_FRA: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 21.0.3.2  netmask 255.255.255.0  broadcast 21.0.3.255
        inet6 fe80::3431:9fff:fe92:7b9f  prefixlen 64  scopeid 0x20<link>
        ether 36:31:9f:92:7b:9f  txqueuelen 1000  (Ethernet)
        RX packets 627  bytes 52104 (50.8 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 609  bytes 52783 (51.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0