From owner-freebsd-net  Sat May 26 12:24:52 2001
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Date: Sat, 26 May 2001 12:24:45 -0700 (PDT)
From: Harkirat Singh <singh@pdx.edu>
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To: Josh Paetzel <jpaetzel@hutchtel.net>
Cc: <freebsd-net@FreeBSD.ORG>, <freebsd-questions@FreeBSD.ORG>
Subject: Re: UDP - Reliable throughput mesaurement
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I specifically want to see the performance of UDP in lossy channel, I am
sure there must be some tool to measure it, I doing a kind of study and
want to analyse TCP vs. UDP!

-Harkirat

On Sat, 26 May 2001, Josh Paetzel wrote:

> On Saturday 26 May 2001 13:51, Harkirat Singh wrote:
> > Hello!
> >
> > 	I want to measure UDP thruput of lossy channel, is there any tool
> > which tests it? I looked at some of the tools but these do not take care
> > of loss, I mean no retransmisson, just measure raw thruput of UDP (TTCP
> > is one of these).
> >
> > I am looking for a measurement tool which should retransmit in case of
> > loss and keep a track of packets, I mean make UDP reliable amd blocking
> > calls.
> >
> > Thanks,
> >
> > Harkirat
> >
> >
>
>
> Uhhmmm, seeing as UDP is specifically designed as being "lossy" I don't think
> there is going to be anything that can help you out there.  There is a really
> good protocol that you can use if you need "reliable" delivery of packets
> over IP.  If I remember right, it is called TCP.
>
> Josh
>
>
>
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-questions" in the body of the message
>


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