OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e7fcb6-0): addr:4e:55:f3:5c:41:02
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(patch-br-int-to): addr:ba:52:f4:2a:e8:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 15(tapeb2f2dfe-3f): addr:fe:16:3e:de:a4:15
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 16(tap47175578-e0): addr:42:a4:48:71:80:17
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 19(tap2976aaab-c7): addr:fe:16:3e:0c:85:f5
     config:     0
     state:      0
     current:    10MB-FD COPPER
     speed: 10 Mbps now, 0 Mbps max
 20(tap4edcfe4e-20): addr:7a:99:bd:e5:0d:f6
     config:     0
     state:      0
     current:    10GB-FD COPPER
     speed: 10000 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:26:9c:f1:3d:bd:18
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
