[OLPC Networking] Wireless Recommendations (Ricardo Carrano)

[Ricardo Carrano]

Greg,

Thank you for your message. Please, check comments inline.

On Fri, Aug 8, 2008 at 9:27 AM, Greg Smith <gregsmitholpc at gmail.com> wrote:
> Hi Ricardo,
>
> Interesting page with some great ideas. A few comments and questions
> after a quick read through.
>
> - It looks like you are making recommendations for development that
> should be done to improve the wireless networking. I can't quite tell if
> these are test cases, or suggestions for new code or suggested action
> items for volunteers. You may want to clarify that.

Those are recommendations that should result into code to be
implemented at firmware/driver level most of the times. And also
recommendations on how to implement test facilities and techniques.
Please note, most of them are fully documented and details will be
posted soon.

>
> - If your focus is on scale you should define the scale targets. You may
>  want to start with my modest goals defined at:
> http://wiki.laptop.org/go/9.1.0_Collaboration_Requirements#Scale

In my understanding, the recommendations are agnostic of scale
targets. They all must/should be implemented independent of the scale
targets.

>
> - You should tie each item in to a specific network environment. I
> suggest this list as the four key environments we want to support:
> http://wiki.laptop.org/go/Networking_scenarios

(same logic as above).

>
> - You should tie each item in to a specific use case. We seem to get
> lost in the technical jargon on this subject and lose site of the end
> user. As a result we never quite end up with something we can promise
> people will work :-( I suggest you tie the items in to these use cases:
> http://wiki.laptop.org/go/Use_Cases#Collaboration_Examples but any
> specific example of what the user does down to mouse clicks at the
> activities level will work.

(same logic again) The recommendations are agnostic of use cases. They
will benefit all use cases.

This is meant to be the most technical possible. It is, im my opinion,
very important to keep it this way. I subscribe to the principle of
acessibility you advocate for, I just don't think that's the case for
this page.

>
> HTHs. BTW great work lately on performance analysis. I look forward to
> meeting you when you get to Cambridge, MA.

Thank you! It will be my pleasure.
>
> FYI as soon as I get a chance (before end of next week for sure) I plan
> to post a Motorola PPT explaining how they do a wireless site survey.
> Unicast me if you want an early look. Great stuff from the wireless
> experts and real results from a survey they did in Colombia for use with
> XOs, including a BoM for covering a whole town.
>

Great! This seems very useful. It also seems connected to the
suggestions of Rafael on this thead, right?


> Thanks,
>
> Greg S
>

Cheers!
Ricardo

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>> Today's Topics:
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>>    1. Wireless Recommendations (Ricardo Carrano)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Wed, 6 Aug 2008 21:40:17 -0400
>> From: "Ricardo Carrano" <carrano at laptop.org>
>> Subject: [OLPC Networking] Wireless Recommendations
>> To: networking at lists.laptop.org
>> Message-ID:
>>       <a31fbec40808061840m65a0fcd1j394066c4c70b472 at mail.gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1
>>
>> Dear all!
>>
>> So, continuing with our current work on the recommendations for
>> improving scalability and reliability of the XO mesh, I started the
>> following wiki page:
>> http://wiki.laptop.org/go/Wireless_Recommendations
>>
>> There is a *lot* of meat to add there, but before going deep into that
>> I would like to ask for:
>>
>> - Comments/suggestions on the page structure;
>> - Check the completness of the list of recommendations;
>> - Suggest a better name (than Wireless Recommendations)
>>
>> Note: I'm sure the page is incomplete with relation to the
>> 802.11s/thin firmware future steps. Michiail, would you please add the
>> respective headings. I know you summarized that recently on a conf
>> call but I was constantly being kicked off due to a crappy skype
>> connection.
>>
>> As soon as we close the first round of discussions in the topics above
>> I'll move on and populate the pages. The idea is of course to move as
>> quickly as possible to the "action" phase.
>>
>> Cheers!
>> Ricardo
>>
>>
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