OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-aa082e-0): addr:4e:7b:6f:b4:2f:0f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-000076-0): addr:66:44:29:56:b4:dd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-d22b3e-0): addr:46:c1:dd:39:3c:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:a1:ea:5c:5e:96
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
