Traffic generators for DS3 link Stress test

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Jul 15th, 2009
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Iam looking for some application (free) that generates continuous traffic on a DS3 link. Wanted to test a new DS3 link with full capacity and move it production, once completed. Any suggestions on the application to use..?



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Overall Rating: 4.3 (3 ratings)
Giuseppe Larosa Wed, 07/15/2009 - 07:40
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Hello Mehboob,

you can try to use netperf it requires to be installed on two linux or freebsd boxes one on site A and one on site B


I've used it some years ago you can use UDP streams or TCP streams

(TCP results can be lower)

Hope to help


mvsheik123 Wed, 07/15/2009 - 07:43
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Great..thank you. Anything on windows hosts..?


cisco24x7 Wed, 07/15/2009 - 08:48
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I just tested this a few days ago. Iperf will work on both Windows and Unix platform. This is really a good tool.

If you want to saturate the DS-3 link, it is probably best to use UDP instead of TCP:

On the server:

iperf -u -s

On the client:

iperf -u -c -b 45M -t 86400

[[email protected]-fwlog]# iperf -u -c -b 45M -t 86400


Client connecting to, UDP port 5001

Sending 1470 byte datagrams

UDP buffer size: 256 KByte (default)


[ 3] local port 44737 connected with port 5001

[ ID] Interval Transfer Bandwidth

[ 3] 0.0-10.0 sec 53.7 MBytes 45.1 Mbits/sec

[ 3] Server Report:

[ 3] 0.0-10.0 sec 53.7 MBytes 45.1 Mbits/sec 0.019 ms 0/38316 (0%)

[ 3] Sent 38316 datagrams

[[email protected]-fwlog]#

That will tell you if your DS-3 is fully utilized.

Easy right?

nick.mueller Wed, 07/15/2009 - 17:11
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Here is a graphical front end to iPerf written in Java. You may need to rework the shell script to launch it if you are running Vista x64 as it uses 32-bit java and the path is changed to Program Files (x86).

mvsheik123 Thu, 07/16/2009 - 09:34
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Thanks Nick. I am planning to use XP PC/laptop (one at each end) for the test.



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