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Re: "IP networks will feel traffic pain in 2009" (C|Net & Cisco)
From: bmanning () vacation karoshi com
Date: Wed, 21 Jan 2009 00:18:51 +0000

On Tue, Jan 20, 2009 at 06:49:14PM -0500, Joe Abley wrote:

On 2009-01-20, at 18:37, Marshall Eubanks wrote:

Less and less would be my estimate. How much video is cached ? How  
much P2P is cached ?

If you asked Akamai, Limelight and friends, they might tell you that  
100% of important video is cached. And viewed from some angles, every  
peer who receives a block of data and offers to serve it to others is  
caching that block of data for the benefit of other peers.


Joe

        aha... so taking a peek at my nearby BT tracker & client, it seems
        that there is abt 12% "duplicate" traffic.  

        wildextrapolation -- poor caching design/flaky networks have a 10-15%
        extra traffic load, "just to make sure".

        i'd guess that 10% of a femto (or is it the other way) byte of traffic
        relates to real money.

--bill


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