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Re: Re: “DHCPv6, SLAAC, Static Day X - 17 year interoperability issue” 2nd issue

Michael Richardson <mcr+ietf@sandelman.ca> Tue, 10 November 2020 02:55 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Gyan Mishra <hayabusagsm@gmail.com>, "Joel M. Halpern" <jmh@joelhalpern.com>, draft-mishra-6man-variable-slaac@ietf.org, 6man WG <ipv6@ietf.org>
Subject: Re: Re: “DHCPv6, SLAAC, Static Day X - 17 year interoperability issue” 2nd issue
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Date: Mon, 09 Nov 2020 21:55:03 -0500
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Gyan Mishra <hayabusagsm@gmail.com> wrote:
    > This issue exists with any deployments where the operator would like to
    > deploy >64 prefix length host subnets at data center or access layer and
    > this could be an enterprise or service provider use case where the router
    > infrastructure is statically configured so no PD here.

I would claim that the next useful prefix length after 64, is 128.

In DC situations, there are really no LANs (i.e. no big yellow cables with
vampire taps), just p2p TX or FX ethernet all over the place.

It would be great to understand your DC use case better.

--
Michael Richardson <mcr+IETF@sandelman.ca>   . o O ( IPv6 IøT consulting )
           Sandelman Software Works Inc, Ottawa and Worldwide

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