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Date:      Sat, 26 May 2001 14:13:37 -0500
From:      Josh Paetzel <jpaetzel@hutchtel.net>
To:        Harkirat Singh <singh@pdx.edu>, <freebsd-net@FreeBSD.ORG>
Cc:        <freebsd-questions@FreeBSD.ORG>
Subject:   Re: UDP - Reliable throughput mesaurement tool
Message-ID:  <01052614133701.54532@mark9.vladsempire.net>
In-Reply-To: <Pine.GSO.4.31.0105261142190.18013-100000@freke.odin.pdx.edu>
References:  <Pine.GSO.4.31.0105261142190.18013-100000@freke.odin.pdx.edu>

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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



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