[46768] in North American Network Operators' Group
Re: packet reordering at exchange points
daemon@ATHENA.MIT.EDU (Richard A Steenbergen)
Wed Apr 10 11:31:41 2002
Date: Wed, 10 Apr 2002 11:30:26 -0400
From: Richard A Steenbergen <ras@e-gerbil.net>
To: Peter Galbavy <peter.galbavy@knowtion.net>
Cc: nanog@merit.edu
Message-ID: <20020410153026.GD523@overlord.e-gerbil.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <016501c1e09e$cf233450$2028a8c0@carpenter>
Errors-To: owner-nanog-outgoing@merit.edu
On Wed, Apr 10, 2002 at 03:48:36PM +0100, Peter Galbavy wrote:
> > To transfer 1Gb/s across 100ms I need to be prepared to buffer at least
> > 25MB of data. According to pricewatch, I can pick up a high density 512MB
>
> Why ?
>
> I am still waiting (after many years) for anyone to explain to me the
> issue of buffering. It appears to be completely unneccesary in a router.
Note that the previous example was about end to end systems achieving line
rate across a continent, nothing about routers was mentioned.
--
Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras
PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 D8 14 36 FE B6)
