On Dec 17, 2010, at 9:57 AM, Loránd Jakab wrote:

> Since it is Friday, maybe some of peering experts have some time to
> speculate what this new approach proposed by Comcast might be, as they
> assert it would represent "a significant shift of Internet infrastructure."
> 
> http://www.lightreading.com/document.asp?doc_id=202121
> http://blog.comcast.com/2010/12/comcast-continues-discussions-with-level-3----offers-to-trial-new-solutions.html

I have no direct knowledge of the situation, but my guess:  I suspect the 
proposal was along the lines of longest-path / best-exit routing by Level(3).  
In other words, if L(3) carries the traffic (most of the way) to the customer, 
then Comcast has no complaint--the costs can be more fairly distributed.  The 
"modest investment" is probably in tools to evaluate traffic and routing 
metrics, to make this work.  This isn't really *new* to the peering community, 
but it isn't normal either.

If anybody knows for sure, I'd be interested to hear.

Cheers,
-Benson


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