OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-354335-0): addr:a6:07:74:aa:07:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-a0e936-0): addr:aa:f4:bc:9d:9d:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-e62eff-0): addr:1e:06:f7:06:a5:35
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c2:83:87:6c:3c:1a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
