SNTG: Simple Network Traffic Grapher

!!! So for that is developers distribution !!!

Targets of this archive:

sntgcap: Packet capture utility based on ``libcap'' library.
xmsntg: Motif visualizer on X Window System for ``sntgcap''.

You can:

Visualize network traffic of any ``libcap'' capable interface.
Eliminate extra burstiness by low-pass filters, EWMA or QLPF .
Tune those filter's parameters on WYSIWYG basis.
And, see those results on fully real-time basis.

Note:

You need ``libcap'' (the Packet Capture library) to make ``sntgcap''. ``libcap'' is available at the following URL:
ftp://ftp.ee.lbl.gov/libpcap.tar.Z
You need Open Motif toolkit or a compatibles of it to make ``xmsntg''.
``sntgcap'' requires the effective user ID of root.
Output of sntgcap is just only for ``xmsntg''. So you cannot use it to interchange with other researchers. You can use ``tcpdump'' for such purpose.
If you find some bugs, or any suggestion, please send me that to ``nrt@ff.iij4u.or.jp''.

You can download sntg archive v.0.09 here.

First of all, you need OpenMotif, tarball or RPM.
(Please download it from, for example, http://www.motifzone.net/, maybe)

% tar xvfz openMotif-2.2.2.tar.gz
% cd openMotif-2.2.2
% ./configure
% make
% su
# make install
# exit

Next, install sntg programs.

% tar xvfz sntg009.tar.gz
% cd sntg009
% make
% su
# make install
# chmod u+s /usr/sbin/sntgcap
# exit
% /usr/X11R6/bin/xmsntg &
or
% xmsntg -d<ethernet_device_name>
for example
% /usr/X11R6/bin/xmsntg -deth1 &

Now you can visualize real-time network utilization,
Please try View->Filter->EWMA or QLPF (digital low-pass filter)
which can decrease high frequency noise.

NARITA Tomio
email: nrt@ff.iij4u.or.jp
Homepage: http://www.ff.iij4u.or.jp/~nrt/