[Nanog] Lies, Damned Lies, and Statistics [Was: Re: ATT VP: Internet to hit capacity by 2010]

Alexander Harrowell a.harrowell at gmail.com
Tue Apr 22 08:28:58 CDT 2008


NCAP - Network Capability (or Cost) Announcement Protocol.

On Tue, Apr 22, 2008 at 2:24 PM, Matthew Moyle-Croft <mmc at internode.com.au>
wrote:

> (I know, replying to your own email is sad ...)
> > You could probably do this with a variant of DNS.  Use an Anycast
> > address common to everyone to solve the discovery problem.   Client
> > sends a DNS request for a TXT record for, as an example,
> > 148.165.32.217.p2ptopology.org.  The topology box looks at the IP
> > address that the request came from and does some magic based on the
> > requested information and returns a ranking score based on that (maybe
> > 0-255 worse to best) that the client can then use to rank where it
> > downloads from. (might have to run DNS on another port so that normal
> > resolvers don't capture this).
> >
> > The great thing is that you can use it for other things.
> >
> Since this could be dynamic (I'm guessing BGP and other things like SNMP
> feeding the topology box) you could then use it to balance traffic flows
> through your network to avoid congestion on certain links - that's a win
> for everyone.   You could get webbrowsers to look at it when you've got
> multiple A records to chose which one is best for things like Flash
> video etc.
>
> MMC
>
> --
> Matthew Moyle-Croft - Internode/Agile - Networks
> Level 5, 150 Grenfell Street, Adelaide, SA 5000 Australia
> Email: mmc at internode.com.au  Web: http://www.on.net
> Direct: +61-8-8228-2909             Mobile: +61-419-900-366
> Reception: +61-8-8228-2999          Fax: +61-8-8235-6909
>
>       "The difficulty lies, not in the new ideas,
>  but in escaping from the old ones" - John Maynard Keynes
>
>
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