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

Nicholas Weaver <nweaver@ICSI.Berkeley.EDU> Tue, 21 October 2008 21:08 UTC

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From: Nicholas Weaver <nweaver@ICSI.Berkeley.EDU>
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Subject: Re: [p2pi] WG Review: Application-Layer Traffic Optimization (alto)
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Ono is leveraging off Akamai's DNS information:  You do a few queries  
to akamai'ed (and other CDN'ed) domains, and use the results as a  
coordinate space.

The question is the simpler coordinate: "who's MY resolver and who  
else uses it".



On Oct 21, 2008, at 2:05 PM, Vijay K. Gurbani wrote:

> 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?
>
> Doesn't Ono [1] do that?  Or am I missing something?  CDNs also
> use DNS redirects to redirect clients to nearest servers.
>
> [1] David R. Choffnes and Fabián E. Bustamante. Taming the Torrent:
>    A practical approach to reducing cross-ISP traffic in P2P
>    systems, Proc. of ACM SIGCOMM 2008, August 2008.
>
> Thanks,
>
> - vijay
> -- 
> Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent
> 1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA)
> Email: vkg@{alcatel-lucent.com,bell-labs.com,acm.org}
> WWW:   http://www.alcatel-lucent.com/bell-labs
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