[OLPC Networking] Mesh network?

[Jim Gettys]

Please understand that OLPC is working with governments (since they
usually control education), and that one of our premises is to saturate
any area we enter.  We are "One Laptop per Child", not "One Laptop Per
100 Children".

So part of what we are doing in our discussions with them is figuring
out the best/most cost effective way to connect a particular school/area
to the Internet.

So we expect that internet connectivity will go into schools into which
the laptops go, pretty much hand in hand.

I think this "what if" does not make much sense in this context.
                                   Regards,
                                    - Jim Gettys, OLPC.


On Wed, 2006-09-06 at 20:33 +0100, Richard Dietrich wrote:
> I think you have misunderstood.. what if there is no connection to the 
> internet even for the first laptop?
> How do you provide it?
> R
> On 6 Sep 2006, at 20:26, Krishna Sankar ((ksankar)) wrote:
> 
> > ;o) Good question. In simple my mind, the connectivity and deployment
> > scenarios are as follows:
> >
> > A)	Mesh connection to each other, enabling kids to play together,
> > games, learning, writing, music et al. For example introducing the
> > chamber music masters and try to form an orchestra together ! Another
> > example is using a Wiki collectively to write stories or essays ....
> > Annotation, IM, .. All requires connectivity ...
> >
> > B)	At school, running school software, connected to each other and
> > to the class room server
> >
> > C)	And of course the traditional scenario, at school or home,
> > connected to internet.
> >
> > D)	I have only very limited exposure, but methinks, Internet is
> > more pervasive. And the hope is that Internet will reach more and more
> > into areas (OLPC being one of the catalysts)
> >
> > Thoughts ?
> >
> > <k/>
> >
> >> -----Original Message-----
> >> From: Richard Dietrich [mailto:richard at praxis-uk.com]
> >> Sent: Wednesday, September 06, 2006 12:18 PM
> >> To: Krishna Sankar (ksankar)
> >> Cc: networking at laptop.org; MBurns
> >> Subject: Re: [OLPC Networking] Mesh network?
> >>
> >> All very well guys -  but go back one stage
> >>
> >> What are you going to connect it too?
> >>
> >> I want to put them in a South African township of 1 million
> >> people, so the school kids can use them.. but there is no
> >> internet connection.
> >> And if thats in a township.. what chance do you stand in rural areas?
> >> The mesh has to link into something.
> >>
> >> So yes, technically interesting.. but?
> >>
> >> Richard
> >> On 6 Sep 2006, at 20:10, Krishna Sankar ((ksankar)) wrote:
> >>
> >>> Interesting question. Actually I was also thinking about the same
> >>> issue ! From my (limited) view :
> >>>
> >>>  	a)    There will be py level interfaces - dials, gages, switches
> >>> and control knobs and a coherent programming model. We do
> >> need APIs at
> >>> that layer.
> >>> 	b)    But the majority of the work would be done at the L1/2/3.
> >>> 	c)    The mesh (802.11s) will be implemented as a Layer1/L2
> >>> artifact
> >>> 	d)    The mesh mobility networking primitives would be more of
> >>> OLSR/AODV/DYMO (more of DYMO/OLSR than AODV) than normal
> >> OSPF. Could
> >>> be OSPF v3 with mobility as well.
> >>> 	e)	We also would need to work with D-Bus, the Avahi
> >>> layer(mDNS, local network forming et al) as well as the twisted
> >>> framework (if that is part of the distribution)
> >>> 	f)	And we should not forget IPv6 !
> >>> 	
> >>>
> >>> Cheers
> >>> <k/>
> >>>
> >>>
> >>> ________________________________
> >>>
> >>> 	From: networking-bounces at laptop.org
> >>> [mailto:networking-bounces at laptop.org] On Behalf Of MBurns
> >>> 	Sent: Wednesday, September 06, 2006 11:42 AM
> >>> 	To: networking at laptop.org
> >>> 	Subject: [OLPC Networking] Mesh network?
> >>> 	
> >>> 	
> >>> 	Has there been a clear plan on how to achieve the mesh network?
> >>> Will it be some python script/framework that acts like a router,
> >>> maintaing a routing table and OSPF of available nodes? Or
> >> is even that
> >>> too high-level, and the mesh capabilities will be done at
> >> some lower
> >>> layer?
> >>> 	
> >>> 	I am generally interested in how it will be
> >> implemented, either from
> >>> scratch or from existing technology.
> >>> 	
> >>> 	Michael Burns
> >>> 	Network Engineering
> >>> 	Oregon State University
> >>> 	
> >>> _______________________________________________
> >>> Networking mailing list
> >>> Networking at laptop.org
> >>> http://mailman.laptop.org/mailman/listinfo/networking
> >>>
> >>>
> >>
> >
> >
> 
> _______________________________________________
> Networking mailing list
> Networking at laptop.org
> http://mailman.laptop.org/mailman/listinfo/networking
-- 
Jim Gettys
One Laptop Per Child