OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:32:28:e5:6e:46:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:9e:14:0b:3a:39:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:62:99:2e:90:5f:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:d3:de:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:d3:de:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
