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[Roll] Source-Routed Multicast

Carsten Bormann <cabo@tzi.org> Mon, 03 November 2014 23:42 UTC

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From: Carsten Bormann <cabo@tzi.org>
To: bier@ietf.org, 6lo@ietf.org, roll@ietf.org
Date: Tue, 04 Nov 2014 00:42:32 +0100
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Cc: Andrzej.Duda@imag.fr
Subject: [Roll] Source-Routed Multicast
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In Hawaii, there will be a BOF about a multicast forwarding control
scheme where a router on the way prefixes a multicast packet with a
special header that tells downtree routers where to forward the
multicast — Bit Index Explicit Replication, or BIER.

While BIER appears to be very focused on a carrier or datacenter
perspective (see draft-kumar-bier-use-cases and the other
draft-*-bier-*), there are applications in constrained node networks
that would benefit from source-routed multicast.

Several proposals on how to do source-routed multicast in constrained
node networks are getting ready for consumption.

With its current focus, I don’t think the BIER BOF itself is the right
place to have a technical discussion about this.
There is no ROLL meeting in Hawaii.
The 6lo agenda is almost full.
Should we do this in a side meeting?  (If we do this before Tuesday, we
can at least report in 6lo — if we do it on Sunday, we might even have
an opinion to air during the BIER BOF.)

Grüße, Carsten

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