OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7ed0ec-0): addr:ee:cf:75:b9:89:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-aa082e-0): addr:12:17:5f:f3:6d:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-d22b3e-0): addr:96:08:49:f9:fa:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:66:b0:c0:43:80:0a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
