OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6ed228-0): addr:1e:04:53:c4:97:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-67be78-0): addr:3e:20:d6:78:f5:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:c0:f6:93:62:c1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
