Re: [6lowapp] Proposed charter for 6LoWAPP BOF

I agree there is a need for more than request/response messaging, but 
WS_*  gives me pause for constrained devices and links. It is probably 
the most compute intensive, bandwidth hungry way to interface HAN-like 
endpoints.

>
> Hi Cullen,
>
>     >----- Message de Cullen Jennings <fluffy@cisco.com> sur Sat, 31 
> Oct 2009 11:29:41 -0600 -----
>     >Pour:        arjun.lists@hsc.com
>     >cc:        Don Sturek <donsturek@grid2home.com>om>, 6lowapp@ietf.org
>     >Objet:        Re: [6lowapp] Proposed charter for 6LoWAPP BOF
>     >
>     >On Oct 29, 2009, at 12:11 , Arjun Roychowdhury wrote:
>     >
>     > ...
>     >OK - The way I want to try and derive us towards a decision here 
> is  
>     >get a list of candidate protocols then for each one ask the 
> yes/no is  
>     >the their agreement that we should do a mapping to that protocol. 
>  The  
>     >protocols I have heard so far are HTTP, SNMP,  SMTP. So two 
> questions
>     >
>     >1) what other protocols mapping should we do?
>
> The charter has significantly changed these days and I would like to 
> re-state the need for
> seamless interfacing between 6lowapp and the DPWS world. DPWS is a low 
> cost SOA solution at
> device level and will play a major role in future Building and 
> Industrial Automation systems
> (embedded in zone controllers, Automation servers, industrial 
> PLCs...). Besides, in some
> cases, native support of DPWS in VISTA and Windows 7 network explorer 
> might help in simplifying
> discovery and commissioning of devices.
> The HTTP REST model proposed in the new charter is sufficient for 
> simple get/set operations but
> I join Vlad Trifa when saying that there are requirements for more 
> than just request/response
> messaging patterns like e.g. publish/subscribe (multicast). IMO 
> seamless interfacing with WS_*
> (at least straightforward proxying) must be provided to ensure 
> efficient integration of 6lowpan networks
> in upcoming architectures.
>
> Regards.
> Nicolas
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