OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-d73120-0): addr:b2:93:54:75:62:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:30:06:c3:78:fd
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
