network_cmds/frame_delay/frame_delay.8

   1 .Dd October 12, 2015
   2 .Dt FRAME_DELAY 8
   3 .Os Darwin
   4 .Sh NAME
   5 .Nm frame_delay
   6 .Nd Utility to measure TCP/UDP frame delay
   7
   8 .Sh DESCRIPTION
   9 .Pp
  10 The
  11 .Nm
  12 utility is designed to measure the effect of latency on
  13 delivery of evenly spaced TCP/UDP frames. This can be latency induced
  14 due to buffering or protocol stack or network drivers.
  15 .Pp
  16 The following options are available:
  17 .Bl -tag -width indent
  18 .It Fl m
  19 Server/Client mode. Should be "server" or "client".
  20 .It Fl t
  21 TCP/UDP frame. Should be either "tcp" or "udp".
  22 .It Fl i
  23 (Client Only) Server ip address.
  24 .It Fl p
  25 Port number.
  26 .It Fl n
  27 Number of frames.
  28 .It Fl f
  29 Frame size.
  30 .It Fl d
  31 (Client only) Delay traffic class. Pick one from {BK_SYS, BK, BE, RD, QAM, AV, RV, VI, VO, CTL}.
  32 .El
  33
  34 .Sh EXAMPLES
  35 .Pp
  36 Setup TCP server:
  37 .Dl "frame_delay -m server -t tcp -p 10010 -n 10 -f 1000"
  38 .Pp
  39 Setup corresponding TCP client:
  40 .Dl "frame_delay -m client -t tcp -i 127.0.0.1 -p 10010 -n 10 -f 1000 -d 2000  -k RD"
  41
  42 .Sh AUTHORS
  43 .An Padma Bhooma ,
  44 .An Kang Sun ,
  45 .An Vincent Lubet .