OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-eb059b-0): addr:be:6f:2b:a3:92:92
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-57e418-0): addr:6e:bc:9b:f6:45:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-8fb585-0): addr:12:be:35:5e:c9:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2a:b8:70:dc:b1:0f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
