OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-1218ff-0): addr:6e:27:81:d6:1a:15
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fc8108-0): addr:62:df:ea:dd:60:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-53e209-0): addr:3e:39:87:d9:ae:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a2:03:ab:b9:8e:a6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
