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

Ted Lemon <mellon@fugue.com> Tue, 11 August 2020 14:59 UTC

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From: Ted Lemon <mellon@fugue.com>
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Date: Tue, 11 Aug 2020 10:59:50 -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] [EXTERNAL] draft-ietf-6man-grand : saving lookups
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On Aug 11, 2020, at 10:54 AM, Templin (US), Fred L <Fred.L.Templin@boeing.com> wrote:
> Some NBMA links can be *very* large, with all nodes on the link as candidates for receiving
> link-scoped multicast. However, with proper controls on limiting the transmission of link
> scoped multicast, the transmissions can be effectively propagated to exactly that (small)
> group of nodes on the link that actually need to receive them. So, if there is going to be a
> draft please make sure to add a note to the effect that properly engineered NBMA links
> are an exception, and can in fact support a very large broadcast domain.

This seems related to the notion that rather than doing unacknowledged multicasts on WiFi, the AP should simply unicast the multicast packet to all interested stations serially.

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