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Re: [dtn] Revival of the IMC multicast scheme

Olivier De jonckere <olivierdejonckere@gmail.com> Tue, 13 December 2022 22:50 UTC

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From: Olivier De jonckere <olivierdejonckere@gmail.com>
Date: Tue, 13 Dec 2022 23:50:34 +0100
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To: "Sipos, Brian J." <Brian.Sipos@jhuapl.edu>
Cc: "sburleig.sb" <sburleig.sb@gmail.com>, dtn@ietf.org
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Subject: Re: [dtn] Revival of the IMC multicast scheme
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Hello,

The draft might not be up to date.

CGR-multicast with extension bloc was introduced. It gathers the set of
members, gets a route per destination with CGR and forward one copy per
downstream branch with an EB carrying the remaining destination to serve
for that branch (similarly to Xcast). Volume management can still be
improved.

I believe a group 0 was introduced to advertise membership within a region.

Best,

Olivier


Le mar. 13 déc. 2022 à 23:39, Sipos, Brian J. <Brian.Sipos@jhuapl.edu> a
écrit :

> Scott,
>
> Would you be interested in reviving the IMC endpoint draft [1] and
> updating the membership petitions for BPv7 and potentially multiple groups?
>
> If so, I would be happy to review and contribute to the document. I have
> some feedback about group registration and comments/questions about service
> identification. I also have some questions about how an ION-based network
> would bootstrap a multicast tree currently.
>
> Thanks,
>
> Brian S.
>
>
>
> [1] https://datatracker.ietf.org/doc/html/draft-burleigh-dtnrg-imc-00
>
>
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