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Re: TCP collapse




What you probably will get is a lot of retransmissions and few new
packets. So the goodput (throughput seen by the application) will go to
zero, even if your throughput remains fairly constant.

Pablo

On Wed, 14 Jul 1999, Kartik Sudeep wrote:

> Has anyone ever modelled a TCP collapse using ns ?
> 
> I tried to overload a 1.5 Mbps link (with RED queueing) with 400 ftp sources 
> transmitting packets of 1000 bytes. The queue on the link gets full as soon 
> as all the sources start transmitting data, and sustains this maximum level. 
> But it does not collapse.
> 
> I am actually trying to find a case where RED queueing would lead to a 
> collapse and only SYN or ACK packets would be sent through rather than the 
> actual data packets.
> 
> 
> 
> 
> 
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Pablo Molinero Fern�ndez
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