OFPST_PORT reply (xid=0x2): 7 ports
  port  1: rx pkts=8, bytes=336, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=0, bytes=0, drop=?, errs=?, coll=?
  port  2: rx pkts=0, bytes=0, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=0, bytes=0, drop=?, errs=?, coll=?
  port  4: rx pkts=250, bytes=16500, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=249, bytes=16434, drop=?, errs=?, coll=?
  port LOCAL: rx pkts=748, bytes=49368, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
  port  3: rx pkts=249, bytes=16434, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=250, bytes=16500, drop=?, errs=?, coll=?
  port  6: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=5, bytes=446, drop=0, errs=0, coll=0
  port  5: rx pkts=251, bytes=16566, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=249, bytes=16434, drop=?, errs=?, coll=?
