OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b0e583-0): addr:86:fb:dd:60:50:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-16940e-0): addr:0e:8c:4c:71:68:b1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:6e:0f:14:3f:31:f2
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
