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Re: [v6ops] Operational Headache: Provisioning domains

Brian E Carpenter <brian.e.carpenter@gmail.com> Sat, 30 March 2019 22:56 UTC

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To: Mikael Abrahamsson <swmike@swm.pp.se>
Cc: Fred Baker <fredbaker.ietf@gmail.com>, IPv6 Operations <v6ops@ietf.org>
References: <D1A738EB-8463-48C6-B1B5-7F9B7F2FE516@gmail.com> <ace22194-0d9f-4a71-d65c-5ab9ec1ba010@gmail.com> <alpine.DEB.2.20.1903300905390.3161@uplift.swm.pp.se> <ee45f57f-c354-914e-f34a-3f534ce8df75@gmail.com> <alpine.DEB.2.20.1903302210170.3161@uplift.swm.pp.se>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Date: Sun, 31 Mar 2019 11:56:16 +1300
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Subject: Re: [v6ops] Operational Headache: Provisioning domains
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On 31-Mar-19 10:12, Mikael Abrahamsson wrote:
> On Sun, 31 Mar 2019, Brian E Carpenter wrote:
> 
>> In an ideal world, you need the host to do that. But in any case your 
>> requirements seem to need significant changes to the host stack, 
>> especially to support PVDs.
> 
> I don't understand your apparent opposition to PVD support. You might 
> consider our use of PVD strange, but that doesn't invalidate the other 
> use-cases for PVDs.

I didn't say I'm against PVDs. I just said that they need widespread
host support to be useful. (As does RFC8028, to alleviate some of the
problems even without PVDs.)

By the way, there was this a few years ago:
https://tools.ietf.org/html/draft-jiang-v6ops-semantic-prefix
I'm still worried by using bits in a GUA prefix for essentially
semantic purposes. I fully realise we have a large supply of IPv6
prefixes. But mixing addresses and service semantics just seems
very likely to cause problems sooner or later. I'm sorry, that
reads like FUD, but that's my feeling.

    Brian

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