[manet] Re: MANET WG Charter and MANET Internetworking

Hi Chrisopher,

> -----Original Message-----
> From: Christopher Dearlove <[email protected]>
> Sent: Thursday, June 26, 2025 12:10 PM
> To: Templin (US), Fred L <[email protected]>
> Cc: [email protected] List <[email protected]>; [email protected]
> Subject: Re: MANET WG Charter and MANET Internetworking
> 
> This is more of an aside, but hopefully of interest,
> 
> Cluster heads aren’t the only possible way to do this. There was an interesting piece of work by someone at the Ecole Polytechnique (I think
> one of Thomas Clausen’s students) on forming OLSRv2 (or it might have been far enough back it was OLSR) domains within a MANET using a
> form of pressure that would cause nodes to move from a high pressure large domain to a low pressure smaller domain, but also for very small,
> also high pressure, domains to merge. At least that’s my recollection. Never had time to properly investigate it. And I’m not proposing it as a
> solution here, just to note at least one other way of doing things.
> 
> And then of course once you have divided, now you have to make it work. I know we did (mostly unpublished, there are few hints in one
> OLSRv2 motivation paper) work on that (we took the division as given, not emergent) and I know others did too.

Yes, that sounds interesting. Here again, Segment Routing seems applicable as a way of spanning
the domains, which might dynamically change in their size and shape as network conditions evolve.
The need is to maintain a dynamically-changing Segment List that can go into a Segment Routing
Header. This is Segment Routing and MANET routing applied at the adaptation layer so that the
network layer sees a stable and fully-connected virtual link.

This all naturally fits with the past work on proactive protocols and I think also could apply to
the reactive. It therefore does not change any of the MANET routing protocols - it augments them.

Fred

> > On 26 Jun 2025, at 20:00, Templin (US), Fred L <[email protected]> wrote:
> >
> > Thank you, Donald and Chris, for getting this discussion started. So as to not top-post either of you,
> > I want to just briefly extend this chartering discussion to also include MANET clustering as supported
> > by Segment Routing. It should be possible, for example, for a larger MANET to be dynamically organized
> > into smaller clusters with each cluster formed around one or more cluster heads. Segment Routing
> > extensions then allow for navigation of the clusters to support Internetworking for deeply-clustered
> > MANET routers. Can we add something about this to the draft charter text?
> >
> > Fred
> 
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