[110853] in North American Network Operators' Group
Re: "IP networks will feel traffic pain in 2009" (C|Net & Cisco)
daemon@ATHENA.MIT.EDU (bmanning@vacation.karoshi.com)
Tue Jan 20 19:20:53 2009
Date: Wed, 21 Jan 2009 00:18:51 +0000
From: bmanning@vacation.karoshi.com
To: Joe Abley <jabley@hopcount.ca>
In-Reply-To: <C0BDE5AB-F60C-4445-A59A-CD6E443389C9@hopcount.ca>
Cc: bmanning@vacation.karoshi.com, nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
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
