Re: Objection to draft-ietf-6man-rfc4291bis-07.txt

Mikael Abrahamsson <swmike@swm.pp.se> Thu, 02 March 2017 18:05 UTC

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Date: Thu, 2 Mar 2017 19:05:25 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Alexandre Petrescu <alexandre.petrescu@gmail.com>
Subject: Re: Objection to draft-ietf-6man-rfc4291bis-07.txt
In-Reply-To: <ee3b73b1-64fd-6fef-bc0a-53b325f0bcfd@gmail.com>
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On Thu, 2 Mar 2017, Alexandre Petrescu wrote:

> I speculate, but I couldn't imagine a cellular operator dedicating a 
> /40, i.e. 2^24 /64s, i.e. the equivalent of a 10.x Class A, to cover its 
> end users.  (the cellular operator I work with dedicates a /47 to cover 
> its end users).

Then that cellular operator is extremely small and only has less than 128k 
users.

3GPP mandates /64 per PDP context. That's what mobile operators use.

I know operator who allocate new pools to their GGSNs in chunks of /44s, 
ie covering a million users at a time.

/40 is not much, is one 1/256th of the default allocation you get by just 
showing up and saying "hello, I am LIR and I want to use IPv6".

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se