Re: [Autoconf] Closing summary on consensus-call for RFC5889modifications

"Dearlove, Christopher (UK)" <Chris.Dearlove@baesystems.com> Wed, 25 August 2010 08:44 UTC

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From: "Dearlove, Christopher (UK)" <Chris.Dearlove@baesystems.com>
To: "Charles E. Perkins" <charles.perkins@earthlink.net>
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Subject: Re: [Autoconf] Closing summary on consensus-call for RFC5889modifications
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I didn't make the definition, go back to RFC 2501. 

If the node is to be mobile, attaching at different points,
available as a destination to others, it has to be running
something.

-- 
Christopher Dearlove
Technology Leader, Communications Group
Communications and Networks Capability
BAE Systems Advanced Technology Centre
West Hanningfield Road, Great Baddow, Chelmsford, CM2 8HN, UK
Tel: +44 1245 242194  Fax: +44 1245 242124

BAE Systems (Operations) Limited
Registered Office: Warwick House, PO Box 87,
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-----Original Message-----
From: Charles E. Perkins [mailto:charles.perkins@earthlink.net] 
Sent: 24 August 2010 20:34
To: Dearlove, Christopher (UK)
Cc: autoconf@ietf.org
Subject: Re: [Autoconf] Closing summary on consensus-call for
RFC5889modifications


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Hello Chris,

A node can easily participate in an ad hoc network
without running OLSR or DYMO or any routing protocol.
Why make the restriction?  I don't understand the value
proposition of disenfranchising so many users and
invalidating so many use cases.

On 8/24/2010 1:55 AM, Dearlove, Christopher (UK) wrote:

> a node has been defined as a router plus possible hosts. If you've got
> a wireless device that wants to participate in a MANET it needs to be
> running an ad hoc routing protocol, i.e. it's a router.

Well, opinions vary here, to say the least.

>                                                  It may perform
> only a limited subset of routing functions - consider for example an
> OLSR node that does not wish to be a relay, only an endpoint.

I can agree, because the null set is a subset of any set.
Do you call a node that implements a null subset of the routing
functions to be a router?

>                       It can
> do that by setting WILLINGNESS equal to zero, and if it is built only
> to take such a role it can then throw away large chunks of OLSR code
> (for example it never sends TC messages). But the node still has some
> router functions.

For instance, could you name one?

>            This is the model of both RFC 2501 and 5889-to-be.
> The host can then get its addresses in any non-MANET-specific way on
> that node.

You didn't say why the node has to be a router, except by
pure dint of the logic that it has to be a router.

I don't find that terribly convincing -- and, I do find
it pretty harmful to the prospects of ad hoc networks.

RFC 2501 says:

>                                               ....       a set
>    of nodes--which may be combined routers and hosts--themselves form
>    the network routing infrastructure in an ad hoc fashion.

Let's take it as given that the routers in a MANET are the
nodes that establish the network connectivity (when possible).

Where does it say that a node that DOES NOT do this is then
disqualified for residence in an ad hoc network?

Regards,
Charlie P.



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