Security Basics mailing list archives
Re: jitter testing
From: markus sesser <markus () sesser eu>
Date: Wed, 27 Feb 2008 17:29:56 +0100
i tested also with iperfi've done the tests in the same network but results are different to my ping tests
[ 3] 0.0-10.0 sec 11.5 MBytes 9.66 Mbits/sec 0.001 ms 284/ 8504 (3.3%) [ 3] 0.0-60.0 sec 68.6 MBytes 9.59 Mbits/sec 0.002 ms 2067/51021 (4.1%) [ 3] 0.0-60.0 sec 68.8 MBytes 9.61 Mbits/sec 0.001 ms 7068/56120 (13%) [ 3] 0.0-60.0 sec 68.5 MBytes 9.58 Mbits/sec 0.009 ms 6813/55685 (12%) [ 3] 0.0-60.2 sec 68.5 MBytes 9.55 Mbits/sec 0.011 ms 6710/55558 (12%) [ 3] 0.0-60.0 sec 68.5 MBytes 9.58 Mbits/sec 0.151 ms 6787/55643 (12%) [ 3] 0.0-60.2 sec 67.9 MBytes 9.47 Mbits/sec 0.008 ms 6438/54906 (12%)there are also some peaks (151us) and the common values are less than the ping values. i think iperf is no round-trip jitter - it's one way (which is more common, according to google recherches)
thanks Randy! any other suggestions? thanks Randy Wyatt schrieb:
markus sesser wrote:Hi,Do anybody know how to measure delay variation (jitter) in layer2/3 networks? I'm looking for system- or freeware-tools to do this (no commercial tools!).What about normal ping test? 1000 packets transmitted, 1000 received, 0% packet loss, time 9016ms rtt min/avg/max/mdev = 0.194/0.207/0.326/0.015 ms --> jitter should be 0.326 - 0.194 = 0.132 ?!? other suggestions? thanks, markusWhat about iperf ? http://sourceforge.net/projects/iperf Regards, Randy
Current thread:
- jitter testing markus sesser (Feb 27)
- Re: jitter testing Randy Wyatt (Feb 27)
- Re: jitter testing markus sesser (Feb 27)
- RE: jitter testing Waltari Harri (Feb 29)
- Re: jitter testing markus sesser (Feb 29)
- Re: jitter testing bart knippenberg (Feb 29)
- <Possible follow-ups>
- Re: jitter testing zied (Feb 27)
- Re: jitter testing Randy Wyatt (Feb 27)