OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-24ac2a-0): addr:22:57:f0:ab:a8:b2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-bf30e7-0): addr:6a:83:c5:aa:9d:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9e:f1:71:78:1d:05
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
