OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-10e3bf-0): addr:a6:be:61:cd:7c:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6de892-0): addr:a6:50:6e:5d:5a:98
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-fa015a-0): addr:fe:63:51:48:aa:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:09:6b:a6:03:66
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
