[Olsr-dev] Fwd: "Mesh" Dreams = OLSR
L. Aaron Kaplan
Tue Aug 24 19:25:03 CEST 2010
Reuben asked me to forward this to the olsr list.
Maybe OLPC gets a fresh start with mesh + OLSR. Who knows...
Begin forwarded message:
> From: "Reuben K. Caron" <(spam-protected)>
> Date: August 24, 2010 4:13:14 PM GMT+02:00
> To: OLPC Devel <(spam-protected)>, (spam-protected)
> Cc: "L. Aaron Kaplan" <(spam-protected)>
> Subject: "Mesh" Dreams = OLSR
> Where Mesh != 802.11s but rather an adhoc, self healing, self organizing routable network.
> Imagine a world where Sugar on a Stick machines can communicate on the same network as an XO laptop. A world where mesh capabilities are hardware agnostic allowing anyone to bring up a mesh network by booting a live cd.
> Imagine a school full of XOs where some are connected to Adhoc Channel 1, some to Channel 6, and some to Channel 11. Now think of an XO that has two USB Wireless Adapters each connected respectively to one of those channels. This central XO also has a third USB ethernet dongle or a 3G wireless modem attached to it. Consider how this simple setup could provide Internet to everyone in the school. Consider the ability to actually create "Mesh Portal Points," that allow one connection to provide an Internet connection to many hops down the line.
> Consider the benefits of using open source software versus our closed source firmware and partnering with communities like Freifunk whose network is ~ 800 node, guifi.net is almost 10k nodes in Barcelona, Athens Wireless is 5k nodes.
> These things are all almost immediately possible by using OLSRd software. Over the past few months, I have tested and built small networks around my neighborhood to consider the feasibility of such software. Now I realize there is a difference between small and large networks but I think it is something we should consider.
> As I have said, please *consider * all of these things with a fresh perspective and try to forget about the prior mesh battles.
> Let's think of solutions that will actually make this work. Some things to consider from Aaron Kaplan, a member of the OLSR community, cc'd here:
> "How to scale networks?
> -The key is to have multiple channels, smart channel selection/assignment, automatic txpower control and low interference between nodes!
> -In a sense, it is funny but true: the quieter the devices become, the better everybody can "hear" his mesh partner.
> -Summary: layer 2 is king for scalability , only then do you need to look at layer 3 optimizations (and with OLSR.org we already took care of that part"
> I hope that we can come together to re-group and re-think how we OLPC and SugarLabs do connectivity and utilize the open opportunities available to create such solutions.
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