OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5e:04:c2:ef:6f:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:b2:83:76:fc:2e:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:a2:fd:8c:7a:72:09
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:2f:61:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:2f:61:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
