[OLPC Networking] Mesh network?

Richard Dietrich richard at praxis-uk.com
Wed Sep 6 15:33:07 EDT 2006


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
>>>
>>>
>>
>
>



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