OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-52480a-0): addr:82:44:51:c3:60:1d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-f46a6c-0): addr:4a:af:03:9a:1d:cf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:86:be:d5:f5:25:8f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
