OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-80c97c-0): addr:0a:a0:91:91:e1:8a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7b13ff-0): addr:1e:73:68:35:98:1d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:2b:5e:41:c4:81
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
