Re: [v6ops] draft-ietf-6man-grand : saving lookups

Ted Lemon <mellon@fugue.com> Tue, 11 August 2020 17:03 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Tue, 11 Aug 2020 13:02:59 -0400
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Cc: Bob Hinden <bob.hinden@gmail.com>, Nick Hilliard <nick@foobar.org>, "v6ops@ietf.org" <v6ops@ietf.org>, IPv6 List <ipv6@ietf.org>
To: "Templin (US), Fred L" <Fred.L.Templin@boeing.com>
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Subject: Re: [v6ops] draft-ietf-6man-grand : saving lookups
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On Aug 11, 2020, at 12:48 PM, Templin (US), Fred L <Fred.L.Templin@boeing.com> wrote:
> That is more or less the principle for NBMA, yes. But take a conservatively-sized NBMA
> link with 1M nodes on the link but only 2-3 of them need to receive the multicast then
> serially unicasting seems pretty efficient and does not disturb the vast majority of
> nodes that don’t care.

Indeed, I was not expressing this as a criticism. I wonder if there’s a way to get that kind of reduction for regular NS/NA pairs. I think for the “I want to send a packet to foo” case, this is easy; the question is, what about during SLAAC?