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Re: UDP Badness [Was: Re: How to measure network quality&performance for voip&gameservers (udp packetloss, delay, jitter,...)]

daemon@ATHENA.MIT.EDU (tony sarendal)
Tue Mar 7 13:05:32 2006

Date: Tue, 7 Mar 2006 18:05:05 +0000
From: "tony sarendal" <dualcyclone@gmail.com>
To: nanog@nanog.org
In-Reply-To: <000701c64210$e0f26610$ca00a8c0@stzffm>
Errors-To: owner-nanog@merit.edu


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On 07/03/06, Gunther Stammwitz <gstammw@gmx.net> wrote:
>
>
>
>
> > -----Urspr=FCngliche Nachricht-----
> > Von: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] Im
> > Auftrag von Fergie
> > Gesendet: Dienstag, 7. M=E4rz 2006 18:16
> > An: gstammw@gmx.net
> > Cc: nanog@nanog.org
> > Betreff: UDP Badness [Was: Re: How to measure network
> > quality&performance for voip&gameservers (udp packetloss,
> > delay, jitter,...)]
> >
> [...]
> >
> > So to answer your question, I think it really depends on how
> > the application itself handles UDP traffic, adapts to any
> > sort of RTT measurements, delay/jitter, etc.
> >
> > - ferg
>
> Hello Fergie,
>
> You are right - but there must be some sort of tool that can generate udp
> packets at a specified rate (or bandwidth) and measure if they are
> arriving
> in order, if there is loss and what the jitter is or something like that.
> Does anyone know some kind of tool?
>
> Gunther



Iperf comes to mind.

/Tony

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<br><br>
<div><span class=3D"gmail_quote">On 07/03/06, <b class=3D"gmail_sendername"=
>Gunther Stammwitz</b> &lt;<a href=3D"mailto:gstammw@gmx.net">gstammw@gmx.n=
et</a>&gt; wrote:</span>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0=
px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br><br><br>&gt; -----Urspr=FCng=
liche Nachricht-----<br>&gt; Von: <a href=3D"mailto:owner-nanog@merit.edu">=
owner-nanog@merit.edu
</a> [mailto:<a href=3D"mailto:owner-nanog@merit.edu">owner-nanog@merit.edu=
</a>] Im<br>&gt; Auftrag von Fergie<br>&gt; Gesendet: Dienstag, 7. M=E4rz 2=
006 18:16<br>&gt; An: <a href=3D"mailto:gstammw@gmx.net">gstammw@gmx.net</a=
><br>
&gt; Cc: <a href=3D"mailto:nanog@nanog.org">nanog@nanog.org</a><br>&gt; Bet=
reff: UDP Badness [Was: Re: How to measure network<br>&gt; quality&amp;perf=
ormance for voip&amp;gameservers (udp packetloss,<br>&gt; delay, jitter,...=
)]
<br>&gt;<br>[...]<br>&gt;<br>&gt; So to answer your question, I think it re=
ally depends on how<br>&gt; the application itself handles UDP traffic, ada=
pts to any<br>&gt; sort of RTT measurements, delay/jitter, etc.<br>&gt;
<br>&gt; - ferg<br><br>Hello Fergie,<br><br>You are right - but there must =
be some sort of tool that can generate udp<br>packets at a specified rate (=
or bandwidth) and measure if they are arriving<br>in order, if there is los=
s and what the jitter is or something like that.
<br>Does anyone know some kind of tool?<br><br>Gunther</blockquote>
<div>&nbsp;</div>
<div>&nbsp;</div>
<div>Iperf comes to mind.</div>
<div>&nbsp;</div>
<div>/Tony</div>
<div>&nbsp;</div><br>&nbsp;</div>

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