[82351] in North American Network Operators' Group

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Re: OMB: IPv6 by June 2008

daemon@ATHENA.MIT.EDU (Phillip Vandry)
Tue Jul 12 23:09:11 2005

From: Phillip Vandry <vandry@TZoNE.ORG>
Date: Tue, 12 Jul 2005 23:08:43 -0400
To: David Andersen <dga+@cs.cmu.edu>
Cc: NANOG list <nanog@merit.edu>,
	Iljitsch van Beijnum <iljitsch@muada.com>
In-Reply-To: <183c5f5e773faf811814749509717a64@cs.cmu.edu>
Errors-To: owner-nanog@merit.edu


On Tue, Jul 12, 2005 at 09:35:37PM -0400, David Andersen wrote:
> samples to squeeze into a low bandwidth channel.  Enter IP header 
> compression, which is shockingly effective at compressing IP headers of 
> all sorts... if you've dedicated 128 bits for the address, and it's 
> still just as static as it was in IPv4, it'll compress to just the same 
> amount.  This is an easy technical problem to solve.

IP header compression only works well over a link where you have few
flows (fewer than the number of slots for compression) so my customers
get to save some bandwidth on their access links and I get the
privilege of wasting a lot in the core.

But I certainly take Iljitsch's point: maybe I'm complaining about VoIP,
not about IPv6.

-Phil

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