OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-adbb84-0): addr:72:1d:af:4e:93:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-a94a2d-0): addr:8a:cd:a3:e9:c2:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a6:ef:8b:1e:7b:9d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
