Re: [ns] Packetsize affecting bit rate?

[jmentz <jmentz@cs.uct.ac.za>]

I have found the source of the problem:  Reducing Packetsize meant that
less bytes were transmitted per packet.  As a result, the size of my TCP
advertised window had to be increased otherwise TCP wouldn't allow enough
packets into the network to cause congestion.

Regards
Joshua Mentz

On Sat, 15 Sep 2001, jmentz wrote:

> 
> I am running a simulation where multiple exponential traffic
> sources cause congestion on a single link.
> 
> When I reduce packetSize_ from 552 to 40, I find that congestion dosn't
> seem to occur anymore. This is visible becuase the queue no longer grows.
> 
> Anyone know why this happens?  I checked expoo.cc and apparently rate_ is
> measured in bps.  Surely then packetsize shouldn't affect transmission
> rate?
> 
> Regards
> Joshua
> 
>