OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-cc0a50-0): addr:ca:a9:23:38:86:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-f69772-0): addr:0e:2c:73:f3:b6:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-005c4c-0): addr:1e:75:27:b6:9e:f2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e2:d5:f5:6e:65:67
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
