OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:f2:d9:5f:5a:91:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(enp1s0): addr:52:54:00:c4:c5:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:4a:99:c9:1a:0f:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:62:74:23:2f:af:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:c4:c5:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
