OFPST_PORT_DESC reply (xid=0x2):
 1(enp1s0): addr:52:54:00:63:47:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:86:e2:a7:e8:8b:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ee:3f:d2:1e:79:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:72:18:4a:24:a6:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:63:47:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
