[178790] in North American Network Operators' Group

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Re: symmetric vs. asymmetric [was: Verizon Policy Statement on Net

daemon@ATHENA.MIT.EDU (James R Cutler)
Sat Mar 7 09:51:25 2015

X-Original-To: nanog@nanog.org
From: James R Cutler <james.cutler@consultant.com>
In-Reply-To: <000101d05890$281f28d0$785d7a70$@iname.com>
Date: Sat, 7 Mar 2015 09:50:48 -0500
To: Frank Bulk <frnkblk@iname.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org


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Frank,

Are your measurements taken at the campus boundary or within the campus =
network?

I remember the confusion when Centrex was first introduced at UMich. The =
statistic there that confounded was call durations wildly exceeding =
models, but mostly within the campus, not to the outside world.  Could =
there be peer to peer traffic that you do not see?


James R. Cutler
James.cutler@consultant.com
PGP keys at http://pgp.mit.edu



> On Mar 6, 2015, at 11:35 PM, Frank Bulk <frnkblk@iname.com> wrote:
>=20
> The download/upload in our residential/business eyeball network has =
been
> trending a 95th-percentile based ratio of 9:1.  If I look at a =
higher-ed
> customer of ours who has symmetric service and has a young demographic =
the
> average ratio is 11:1 and the peak ratio 8.8:1.  So despite access to
> symmetric speeds, they're not showing a distinctively heavier =
symmetricity.
>=20
>=20
> Frank
>=20


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