OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4d1543-0): addr:42:a2:44:b2:a7:b9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d3d811-0): addr:a6:0d:ac:0e:09:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-18ac42-0): addr:06:b1:f2:99:4d:8b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:54:16:84:c0:6b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
