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Re: [p2pi] WG Review: Application-Layer Traffic Optimization (alto)

Dean Anderson <dean@av8.com> Wed, 22 October 2008 18:38 UTC

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From: Dean Anderson <dean@av8.com>
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To: Nicholas Weaver <nweaver@ICSI.Berkeley.EDU>
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Cc: "ietf@ietf.org" <ietf@ietf.org>, "p2pi@ietf.org" <p2pi@ietf.org>, IESG IESG <iesg@ietf.org>, Karl Auerbach <karl@cavebear.com>
Subject: Re: [p2pi] WG Review: Application-Layer Traffic Optimization (alto)
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On Tue, 21 Oct 2008, Nicholas Weaver wrote:

> Hey, stupid thought...
> 
> Could you do proximity based on "who's your DNS resolver"?  Do a few  
> name lookups: one to register YOU as using YOUR DNS resolver to the  
> remote coordinator, and one to get "who are other peers using the same  
> resolver"?
> 
> An ugly, UGLY hack, but it might be interesting to think about.
> 
> Has anyone done this already?

This is a very good idea.  You can get 'who are your peers?' through BGP
analysis. (look at quagga/zebra).  Quagga can get routes from the 
routers, and then do whatever, feed that to a database, etc.

So one could start with BGP data, and then perhaps test and cache actual
hops to the target, rather like DNS, but not actually DNS.

		--Dean





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