OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:a6:a5:40:f6:4d:eb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(enp1s0): addr:52:54:00:39:90:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:be:c3:d4:d7:e4:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:b2:1e:ed:9a:b8:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:39:90:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
