OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-0e1be5-0): addr:7a:62:05:6a:9e:4a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-2db4b0-0): addr:aa:41:f9:b8:4c:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:56:5e:c8:8d:f5:37
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
