Re: [v6ops] GRASP

Brian E Carpenter <brian.e.carpenter@gmail.com> Wed, 20 December 2017 00:02 UTC

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To: v6ops@ietf.org
References: <fc31bd170b134c8292d33f52400b175b@XCH15-06-08.nw.nos.boeing.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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Date: Wed, 20 Dec 2017 13:02:44 +1300
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Subject: Re: [v6ops] GRASP
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On 20/12/2017 12:42, Templin, Fred L wrote:
> Brian - what is this GRASP thing:
> 
> https://www.ietf.org/id/draft-ietf-anima-grasp-15.txt
> 
> First of all, it looks like a protocol specification but it is coming from an
> operations WG which seems odd to me. How is it that anima can exist
> as an OPS group and produce standards-track specifications?

Easily. This was a chartered work item and until recently one of the Internet
ADs served as AD for the WG, precisely because we were chartered to do
protocol development.

> Second, it looks like it wants to be a link-local discovery protocol that can
> replace existing discovery protocols like DHCPv6, IPv6 ND, etc. Is that the
> intention - to replace well established protocols with something new?

No. It isn't competing with ND or DHCPv6 in the least. GRASP Objectives (the
atoms of discovery) are higher level objects than anything you would discover
with DHCP or ND. There *is* an element of overlap with DNSSD, but we're
working to avoid that becoming a tussle (draft-eckert-anima-grasp-dnssd-00).

You should start with https://tools.ietf.org/html/draft-ietf-anima-reference-model
to get the big picture. Or if you prefer bullet points:
https://github.com/becarpenter/graspy/blob/master/AN-overview.pdf

Regards
    Brian