Re: [Roll] multicast & MLD on LLN

Kerry Lynn <kerlyn@ieee.org> Wed, 15 October 2014 15:51 UTC

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From: Kerry Lynn <kerlyn@ieee.org>
To: Routing Over Low power and Lossy networks <roll@ietf.org>
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Cc: "IJsbrand Wijnands \(iwijnand\)" <ice@cisco.com>
Subject: Re: [Roll] multicast & MLD on LLN
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Pascal, Carsten, et al.

On Sat, Oct 11, 2014 at 2:39 AM, Carsten Bormann <cabo@tzi.org> wrote:

> Right, MLD is a host-router protocol.
> Routers among them speak a routing protocol, so they wouldn’t exchange MLD.
> (A RPL “leaf” is a router.)
>
> > Finally I'm looking at BIER see how their ideas could apply to LLNs…
>
> Yep.
> We (TZI) have done (specified, implemented, analyzed) an efficient
> BIER-like multicast forwarding protocol for non-storing mode a while ago.
>

I admit to some confusion here.  Is (topology-free) MPL no longer the
default
multicast forwarding protocol for LLN?


> Need to write that up in an I-D and submit it somewhere.
> BIER or ROLL or both?
>
> I thought the goal was to shut down (or is it re-charter) ROLL?  If we're
considering
new approaches to multicast forwarding, that may be reason enough to
re-charter
ROLL.

-K-


> Grüße, Carsten
>
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