Re: [Anima-bootstrap] Brian: GRASP parameter for registrar discovery by proxy

Brian E Carpenter <brian.e.carpenter@gmail.com> Fri, 24 February 2017 19:15 UTC

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To: Michael Richardson <mcr+ietf@sandelman.ca>, anima-bootstrap <anima-bootstrap@ietf.org>
References: <20170221155002.GA8168@faui40p.informatik.uni-erlangen.de> <6b414f54-4164-5c9d-390e-30d21f786cca@gmail.com> <18032.1487866082@obiwan.sandelman.ca>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Sat, 25 Feb 2017 08:15:14 +1300
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Cc: Toerless Eckert <tte@cs.fau.de>
Subject: Re: [Anima-bootstrap] Brian: GRASP parameter for registrar discovery by proxy
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On 24/02/2017 05:08, Michael Richardson wrote:
> 
> Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
>     > That seems to go back to using discover/response. Wrong answer, IMHO;
>     > flooding is simpler: fewer messages and richer semantics. I'm going to
>     > assume that below.
> 
> What if the Registrar needs to be aware of the Join Proxy (prior to it making
> use of it), and may need to do some (local) configuration or load balancing
> in the decision to provide service to that proxy.
> 
> This seems to be a clear case where discovery ought to be used.
> 
>     > (Also, using link-local examples is an oversight, surely: this should
>     > be an ACP address, e.g. fdab:dead:beef::1234, I think.)
> 
> Yes, exactly. It should be an ACP address.
> 
>     > The could be sent all in one Flood message, or in separate ones,
>     > possible from different sources if there were actually two registrars,
> 
> It seems like Flood responses and Responses ought to be interchangeable.

They are similar. But from my prototyping, I found Flood to be a more natural
semantic than Discovery/Response.

    Brian