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Re: [Snac] M/O Bit reflection behavior of draft-hui-stub-router-ra-flag-02

Michael Richardson <mcr+ietf@sandelman.ca> Thu, 18 April 2024 01:21 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Ted Lemon <mellon@fugue.com>, SNAC ML <snac@ietf.org>
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Date: Wed, 17 Apr 2024 21:21:46 -0400
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Subject: Re: [Snac] M/O Bit reflection behavior of draft-hui-stub-router-ra-flag-02
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Ted Lemon <mellon@fugue.com> wrote:
    > The problem with tracking M&O bits is that they don't have lifetimes. SNAC
    > devices never want to turn them on, but if we are required to track them,
    > it's actually technically difficult to understand how we would track them.

argh. I just don't think it matters, just send them as 0 as SNAC routers are
unaware if there is a DHCP server out there.
(Wire-or is the only intelligent behaviour for hosts)
I'm just not willing to die on this hill, so I've been butting out.

    > We do actually have an appendix that talks about this issue. It's currently
    > not in a published version of the draft, but you can find it here:

    > https://github.com/ietf-wg-snac/draft-ietf-snac-simple/pull/53/files

    > Can you take a look at that and see what you think?

That PR is for copy.
It's also go this section on
     _Analysis of deployment scenarios in which a stub router could cause
     problems_

which I guess was started to explain what happens if M&O are wrong, but I
don't see any text in that section on M&O, so I suggest splitting the PR and
merging that section now.

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

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