OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-50d38f-0): addr:6e:e9:cd:ac:5e:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-e8a0f8-0): addr:aa:af:93:e5:98:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9f35b9-0): addr:46:89:14:f7:1a:71
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:be:5f:81:45:67:f8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
