Re: Adoption Call for "Improving the Robustness of Stateless Address Autoconfiguration (SLAAC) to Flash Renumbering Events"

On Tue, Jun 30, 2020 at 11:25 PM Michael Richardson
<mcr+ietf@sandelman.ca> wrote:
>
>
> I think that we have a rough consensus that there are events that seem to
> cause long-connecting devices (such as desktops, TVs, appliances) to
> sometimes fail to notice when there is a renumber.
> ("Short-connecting" devices like phones tend to join/leave often enough that
> they usually get recent info. and they get tested more for this)
>

There is a problem to be solved there and I support adoption of this Draft.

> It seems that for the non-flash case, that there is a lack of complete
> testing/implementation for the various cases, most of which are probably
> already dealt with given proper implementation of the protocols.
> The result is that many of us see renumbers which do not get deployed
> smoothly, and we assume a flash renumber when in some cases, it was not.
> ("Your failure to plan ahead is not an emergency to me")
>
> The result is that the urgency of this situation varies by experience, and by
> quality of implementation.  It seems that if we had an RFC that dealt with
> the **FLASH** renumbering situation, that by construction, devices that dealt
> with that would also deal smoothly with the planned renumering situation.
> (Didn't we have an entire WG at one point to renumbering? I think it didn't
> end that successfully, but that was during years I spent less time on IETF)
>
> As Erik points out, I think that there a number of active measures that can
> mitigate the situation without changes to RAs, but I also think that we can
> plan long term such that each end of the conversation is trying to make
> things go smooth.
>
> To clarify: I think we should adopt this document, provided we can more
> constructive understand that we do not all see the same part of the Elephant.
>
> --
> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
>  -= IPv6 IoT consulting =-
>
>
>
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