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Re: [homenet] homenet-prefix-assignment update - prefix length 64 and on prefix comparison

Tim Chown <tjc@ecs.soton.ac.uk> Wed, 08 October 2014 14:22 UTC

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From: Tim Chown <tjc@ecs.soton.ac.uk>
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Date: Wed, 08 Oct 2014 15:21:38 +0100
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To: Pierre Pfister <pierre.pfister@darou.fr>
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Cc: Ole Troan <otroan@employees.org>, homenet@ietf.org, Alexandru Petrescu <alexandru.petrescu@gmail.com>
Subject: Re: [homenet] homenet-prefix-assignment update - prefix length 64 and on prefix comparison
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On 8 Oct 2014, at 14:14, Pierre Pfister <pierre.pfister@darou.fr> wrote:
> 
> Why should we mandate homenet implementations to *brake* in situations where they could work fine ? Why should we voluntarily prevent a link from being configured if we actually can configure it ?
> 
> If MUSTs are the solution, then I would rather see a ‘ISP MUST provide a /56 to customers’ than ‘Homenet MUST brake when the provided prefix is not big enough’.

But this is what the homenet arch text says in Section 3.4.1:
http://tools.ietf.org/html/draft-ietf-homenet-arch-17#section-3.4.1

i.e. don’t go longer than /64, and ISPs should provide enough prefixes.

The why64 text is very relevant here.

Tim

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