OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-920673-0): addr:86:fa:23:44:bc:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b92bf1-0): addr:5e:7e:72:de:80:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:6c:1d:b2:e5:6b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
