Re: [Roll] Fwd: New Version Notification for draft-ko-roll-mix-network-pathology-00.txt

[Abdussalam Baryun <[e-mail]>]

Hi John,

I like the work, as I always beleive that LLN is has mixed nodes of
different  capabilities,
the work I am doing has in the routing aspects similar which is about node
ability NAP [*]. However, I support your work as well,

Comments on your draft 00:
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section 4>N is operating in non-storing mode so without a source routing
header, it will forward the packet back to S. Thus the packet bounces
between N and S.

A node should not forward to prefered next-hop towice, or it should never
forward (while it doesn't know the path to destination) to a node which
already send the packet to it.
----------------
section 5>A new mode of operation (MOP) that allows a node to choose either
   to implement the storing or non-storing features, or both.  The
   changes below are made compared to the original storing and non-
   storing modes.

you may add, that there are alot of LLN possibility of it nodes non-store
and store modes, as destinations maybe store or/and non-store and the root
also maybe store and/or non-store. IMO, this section is still not complete
to cover all possibilities.

-------------------------------------------------------------------------------------------------------------------------------

In my work [*] I name this operation mode you refer, as node ability. The
node will choose the mode depending on the ability metric. However, your
draft is interesting because this pathology function will be within the
routing RPL function and depending on OF.

[*] http://tools.ietf.org/id/draft-baryun-roll-nap-00.txt

Best Regards

Abdussalam Baryun
University of Glamorgan, UK
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