.TH SJitter 1 "October 5, 2006" "version 1.4" "User manual"
.SH NOM
sjitter \- Another network performance tool....
.SH SYNOPSIS
.B 
sjitters [\-i] [\-p PORT]
.PP
sjitterc 
\-c SERVER [[\-n NBPCKT] | [\-t SECOND]] [\-p PORTNB] [\-w SIZE] [\-b BITRATE]
.SH DESCRIPTION
The 
.B SJitter
programs allow users to test the network bandwidth and jitter. The sjitters program
should be run on the server, the sjitterc on the client. When the server is running,
it waits incomming UDP packets sending by the client. All the UDP packets are tagged 
with a timestamp (both client and server should be time synchronized). The server 
analyze the bandwidth and the jitter (according to the RFC 1889) and generate a report.
.PP
.SH OPTIONS
.B sjitters (server)
.TP
.B \-i
Interactive mode.
.TP
.B \-p PORT
Set the listenner UDP port (default is 9930)
.SH OPTIONS
.B sjitterc (client)
.TP
.B \-c SERVER
Set the IP address of the server.
.TP
.B \-n NBPCKT
Set the number of UDP packets to send to the server (not compatible with \-t option).
.TP
.B \-t SECOND
Send UDP packet during SECOND second (not compatible with \-n option).
.TP
.B \-p PORT
Set the server UDP port number (default is 9930).
.TP
.B \-w SIZE
Set the packet size (data level).
.TP
.B \-b BITRATE
Set the flow bitrate (in Kbits per second).
.SH EXAMPLES
.B sjitterc \-c localhost \-b 200 \-t 20
Send data (350 datagrams of 1400 bytes / 200 Kbps) to the server:port 127.0.0.1:9930
Sending data (estimate time: 20 seconds)...
Summary: 350 datagrams sent in 21.05 seconds (186 Kbps)
.PP
.B sjitters
[Client: 127.0.0.1] Init OK (wait 350 datagrams of 1400 bytes)
[Client: 127.0.0.1] Receive 350/350 (100%) datagrams in 21.05 seconds (186 Kbps)
[Client: 127.0.0.1] One\-way delay summary (ms): Min=0.12 / Max=123.51 / Avg=0.64
[Client: 127.0.0.1] Jitter summary (ms)       : Min=0.13 / Max=7.26 / Avg=0.69
.SH AUTHORS
Nicolas Hennion ( nicolashennion (at) gmail.com )
.SH COPYRIGHT
This  program  is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the  Free  Software
Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public  License  along  with
this  program;  if  not,  write to the Free Software Foundation, Inc., 675 Mass
Ave, Cambridge, MA 02139, USA.
.SH DOWNLOAD
http://freshmeat.net/projects/sjitter/