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

  • From: Matthew Moyle-Croft
  • Date: Tue Apr 22 09:35:04 2008

SNSP = Simple Network Selection Protocol

Alexander Harrowell wrote:
> NCAP - Network Capability (or Cost) Announcement Protocol.
>
> On Tue, Apr 22, 2008 at 2:24 PM, Matthew Moyle-Croft 
> <mmc@xxxxxxxxxxxxxxxx <mailto:mmc@xxxxxxxxxxxxxxxx>> 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
>     <http://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@xxxxxxxxxxxxxxxx <mailto:mmc@xxxxxxxxxxxxxxxx>  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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>
>

-- 
Matthew Moyle-Croft - Internode/Agile - Networks
Level 5, 150 Grenfell Street, Adelaide, SA 5000 Australia
Email: mmc@xxxxxxxxxxxxxxxx  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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