OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:3a:62:b4:7e:ab:21
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5e:8e:1d:4a:33:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:fa:33:ee:2a:c9:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:2d:f6:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:2d:f6:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
