OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8de79b-0): addr:22:b9:2e:b6:66:dd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-e08064-0): addr:22:80:af:18:d5:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:96:b0:13:44:77:7b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
