[165739] in North American Network Operators' Group

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Re: iOS 7 update traffic

daemon@ATHENA.MIT.EDU (Joe Abley)
Thu Sep 19 15:19:17 2013

From: Joe Abley <jabley@hopcount.ca>
In-Reply-To: <f5nypex78eynfdtwnegeisqm.1379614267565@email.android.com>
Date: Thu, 19 Sep 2013 14:42:12 -0400
To: Warren Bailey <wbailey@satelliteintelligencegroup.com>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On 2013-09-19, at 14:11, Warren Bailey =
<wbailey@satelliteintelligencegroup.com> wrote:

> I don't see how operators could tolerate this, honestly. I can't think =
of a single provider who does not oversubscribe their access platform... =
Which leads me to this question :
>=20
> Why does apple feel it is okay to send every mobile device an update =
on a single day?

How is this different from the flash crowds caused by hockey =
championships, or football games, or any of the other things that =
generate a lot of simultaneous interest every once in a while?

> Never mind the fact that we are we ones on the last mile responsible =
for getting it to their customers, 1gb per sub is pretty serious.. Why =
are they not caching at their head ends, dslams, etc?

Given that the code is signed, I'm surprised that iDevices that have =
already upgraded the hard way don't advertise a "update available" =
service on local networks. Individual devices don't care where the =
updates come from, so long as the signatures are good.

You'd think that'd have the potential to improve the user experience as =
well as avoid jamming the tubes, especially in highly multi-user =
environments like university campuses; it could probably halve the =
network load in a significant number of home networks, too.


Joe



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