OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-26f986-0): addr:36:eb:a3:9a:75:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b7d5b3-0): addr:e2:81:79:5e:82:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-ade391-0): addr:4e:b7:8a:2f:1f:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(ovn-9b5ed7-0): addr:de:e0:cb:22:76:f9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(ovn-49b8a0-0): addr:e6:b7:95:f4:d0:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-br-int-to): addr:f2:33:88:60:ca:31
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:52:db:d0:3f:8c:c8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
