OFPST_PORT reply (xid=0x2): 5 ports
  port 23: rx pkts=16, bytes=1620, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=11, bytes=1436, drop=0, errs=0, coll=0
  port  2: rx pkts=0, bytes=0, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=0, bytes=0, drop=?, errs=?, coll=?
  port  1: rx pkts=40, bytes=1680, drop=?, errs=?, frame=?, over=?, crc=?
           tx pkts=7, bytes=294, drop=?, errs=?, coll=?
  port 24: rx pkts=3, bytes=270, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=8, bytes=616, drop=0, errs=0, coll=0
  port LOCAL: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
           tx pkts=0, bytes=0, drop=0, errs=0, coll=0
