OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f644a1-0): addr:fa:5b:d0:d3:6e:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-86ad36-0): addr:3e:ec:96:f8:57:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-4e0a71-0): addr:72:ec:fc:5e:c8:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:22:d9:70:0f:35
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
