OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:66:98:73:7a:5e:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:a2:45:df:8e:cc:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:92:58:7e:de:c5:16
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:7c:b2:63
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:7c:b2:63
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
