OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e99e68-0): addr:06:2b:c3:67:d4:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-f9db12-0): addr:7a:e0:d5:a3:56:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-7eece7-0): addr:4a:d0:4c:ff:e8:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0e:cb:70:dc:67:79
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
