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Re: [v6ops] Operational Headache: Provisioning domains

Mikael Abrahamsson <swmike@swm.pp.se> Sun, 31 March 2019 05:04 UTC

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Date: Sun, 31 Mar 2019 07:03:59 +0200
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
cc: Fred Baker <fredbaker.ietf@gmail.com>, IPv6 Operations <v6ops@ietf.org>
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Subject: Re: [v6ops] Operational Headache: Provisioning domains
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On Sun, 31 Mar 2019, Brian E Carpenter wrote:

> By the way, there was this a few years ago:
> https://tools.ietf.org/html/draft-jiang-v6ops-semantic-prefix

Yes, my colleague Ian Farrer is co-author of that document.

> 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.

I share your concern and this approach has to be done with care. However, 
it's not uncommon for operators to have 3-4 different vlans to the HGW to 
separate services video/voice/management/Internet. This basically does the 
same thing.

We also use diffserv to do some PHB differentiation within the same 
prefix.

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

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