North American Network Operators Group

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Re: Selfish routing

  • From: Richard A Steenbergen
  • Date: Fri Apr 25 23:03:53 2003

On Fri, Apr 25, 2003 at 03:23:33PM -0400, [email protected] wrote:
> 
> > So let me put this another way: I agree with Sean's original comment 
> > that adding more bandwidth makes networks better, but only on condition 
> > that you know how to use it.
> 
> Someone who built a rather good network used to say something along the
> lines of "You are confused. QoS does not stand for Quality of Service. It
> stands for Quantity of Service. What it means is that you don't have enough
> capacity so you drop packets on the floor of those who pay you less money
> before dropping on the floor packets of those who pay you more. At the end,
> you still drop packets." Having capacity *always* makes a network better.

Yes but... I seem to recall a few things about the network you are
referring to (the "You are confused" is kindof a tip-off :P), and one of 
those things was the complete and total meltdown with every fiber cut.

Sometimes you can win the battle with quantity of service, and sometimes
you just don't have a choice in the matter... Why throw away the ability 
to keep your network alive in the event of fiber cuts, DoS, or just the 
realities of business, because of engineering religion...

-- 
Richard A Steenbergen <[email protected]>       http://www.e-gerbil.net/ras
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