OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-260ff7-0): addr:ae:54:1f:cf:2a:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c6a037-0): addr:7e:ea:61:1e:8b:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8a:d1:2d:cd:e7:8a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
