IOS new versions and network load

Mon Sep 18 13:52:40 UTC 2017

While we don’t use Apple's caching servers we do have transparent caching in place which nets us about 82% of their content being serverd locally. On a big IOS update it will probably be close to 99% for that one title.

Luke Guillory
Vice President – Technology and Innovation

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-----Original Message-----
From: NANOG [mailto:nanog-bounces at nanog.org] On Behalf Of Paul Stewart
Sent: Monday, September 18, 2017 7:53 AM
To: Mike Hammett
Cc: Nanog at nanog.org
Subject: Re: IOS new versions and network load

Curious as mentioned if anyone doing this on scale?  I kind of doubt it but love to hear otherwise.  My assumption is this is more Enterprise focused than ISP

Paul

Sent from my iPhone

> On Sep 18, 2017, at 8:48 AM, Mike Hammett <nanog at ics-il.net> wrote:
>
> We've been looking into the caching server bit lately given that we're not due to get an official Apple node for at least another year yet.
>
> It looks very difficult to manage, given the DNS TXT records and domain search fields. If it was as simple as entering the supported IP ranges, it'd be a lot easier to implement.
>
> The caching service does support a lot more than content than "once a
> year" https://support.apple.com/en-us/HT204675
>
>
>
>
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
>
> Midwest-IX
> http://www.midwest-ix.com
>
> ----- Original Message -----
>
> From: "Jean-Francois Mezei" <jfmezei_nanog at vaxination.ca>
> To: "Eduardo Schoedler" <listas at esds.com.br>
> Cc: Nanog at nanog.org
> Sent: Sunday, September 17, 2017 6:43:50 PM
> Subject: Re: IOS new versions and network load
>
>> On 2017-09-17 19:37, Eduardo Schoedler wrote:
>>
>> Server is an app now, any MacOS can have it running.
>
> But do carriers/ISPs really want to deal with a rack unfriendly Mac
> Mini or iMac at a carrier hotel? If the Server App could run on Linux,
> or if OS-X could boot on standard servers, perhaps, it it seems to be
> a very bad fit in carrier/enterprise environments.
>
>> Implementation will be a little tricky, because you need your
>> customers to look a record in your domain.
>
>
> I've tried reading some about it.
> The cache server app registers with Apple its existence and the IP
> address ranges it serves
>
> When a client wants to download new IOS version, Apple checked and
> finds that the client's IP is served by the caching server whose
> "local" IP is a.b.c.d (akaL the inside NAT IP address). Tells client
> to get version of software from that IP address.
>
> The DNS TXT records are used by the Caching Server to get the list of
> IP blocks it can serve. (not needed in the target small office
> environments where everyone is on same subnet and the caching server
> can tell the apple serves the one subnet it seves).
>
>