OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4cfd6c-0): addr:a2:2f:9f:4a:d6:1a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d0d376-0): addr:9e:f9:98:cd:ab:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:96:87:75:0d:96:53
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
