Re: [Anima-bootstrap] Discussion re. encoding of ACP parameters in LDevID

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 15 June 2016 02:20 UTC

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To: Toerless Eckert <eckert@cisco.com>, anima-bootstrap@ietf.org
References: <20160614233408.GI31598@cisco.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Wed, 15 Jun 2016 14:20:07 +1200
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Subject: Re: [Anima-bootstrap] Discussion re. encoding of ACP parameters in LDevID
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On 15/06/2016 11:34, Toerless Eckert wrote:

...
> The IPv6 address is lifetime stable

Define lifetime please.

...
> So: My Favourite is actually the rfc822addr. Aka: An email-address:
> 
>      anima.acp+FD99:B02D:8EC3:0:200:0:6400:1@example.org

I've got no strong preference here but I want to add a constraint.
It's essential that if we include a literal IP address, it is canonical
so that text comparisons will always succeed. Therefore following RFC 5952
is a MUST (even though that RFC itself is only a SHOULD).

Therefore your example should be

anima.acp+fd99:b02d:8ec3:0:200:0:6400:1@example.org

(and, btw,
anima.acp+fd99:b02d:8ec3::200:0:6400:1@example.org
would be incorrect even though it's the same binary address)

    Brian