OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b97b95-0): addr:56:52:90:21:fa:50
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-39821e-0): addr:c6:8b:a6:48:09:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-1ee259-0): addr:62:b0:12:11:6c:8e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:da:1a:e4:59:25:c7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
