Re: IOS new versions and network load

[Paul Stewart <paul () paulstewart org>]

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 () 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 () vaxination ca> 
> To: "Eduardo Schoedler" <listas () esds com br> 
> Cc: Nanog () 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).