OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ee:5a:39:a8:49:83
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:d6:34:bf:c5:af:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:22:3b:fa:09:47:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:80:a9:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:80:a9:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
