OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6db8e3-0): addr:d6:70:e0:3f:09:ed
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-874d83-0): addr:e2:f3:c6:d9:9d:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:b4:6e:d0:8d:b2
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
