OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9fcf44-0): addr:b2:0d:88:16:8d:83
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fc87ae-0): addr:d2:99:f9:fc:30:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ae:c8:a2:82:b6:ab
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
