[Gllug] traffic shapping

[Alistair Mann]

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Thus spaketh Jonathan Dye on Wednesday 21 May 2003 1:11 pm:
> I'm trying to set up some traffic shaping on my dial up connection to limit
> the speed of incoming packets 

Stop right there. There is no traffic-shaping solution anywhere that can help 
you to shape /incoming/ traffic. By definition, traffic cannot be shaped 
until it has already arrived, by which time, your dialup line has already 
been swamped. 

You can shape through-traffic at a firewall; you can shape how fast outbound 
traffic, but you can't shape incoming traffic. So, for instance, you can 
limit outbound traffic from your webserver to 2.5kb/s; you can limit your 
colleague's kazaa client to 5% of total bandwidth; but you can't stop being 
'slashdotted' and 'farked' because 5,000 people are all trying to connect to 
your machine at the same time.

So, if shaping incoming is what you are really trying to do, I hope that 
clears up why your script couldn't ever work.

Cheers,
- -- 
Alistair

Today is Pungenday, the 70th day of Discord in the YOLD 3169
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