OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fa:5f:61:4e:5a:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:e6:48:c2:4b:c1:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:46:e6:35:ab:e8:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:f9:65:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:f9:65:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
