On Wed, Jul 10, 2013 at 10:44 AM, Baptiste Jonglez <[email protected]> wrote: > Hi, > > I just realized I forgot to write about the Babel workshop at Pas Sage > en Seine, which was more than two weeks ago. > > I first gave a short presentation, mostly to recall basic network > concepts, see [1] or [2] (in French). The slides are available > at [3]. > > Then, there was about one hour of workshop: people could come with > their laptop, install babeld and ahcpd and connect to the mesh network > deployed there. > > There were about 15 people with laptops, and someone had a router (but > I don't think he managed to connect it to the mesh, unfortunately). > Most people got it working, but some didn't. We've had one kernel > panic, and a few people that were on the wrong ad-hoc cell, even > though they were using the same channel; we might have hit the cell > limit, or simply a bug in their wireless driver.
Perhaps you ran into the BSSID problem I did, where some devices ended up on the wrong BSSID? > > The base network was built using a raspberry pi (exporting a route to > the Internet) and four TP-Link WR703N, of which two were talking with > the raspberry pi over the existing wired network. Everybody was using > the same wireless channel. > > Shortly after the workshop, the network looked like this: > > http://ze.polyno.me/babel/babelweb-pses2013-1.png > > Another capture showing feasible routes: > > http://ze.polyno.me/babel/babelweb-pses2013-2.png > > There are about ten screenshots of babelweb available at [4]. > > > The goal was to get people to discover and play with Babel, and show > that it works in practice; I consider this workshop a success on this > regard, even though it was somewhat disorganized. The workshop was > held on Saturday, but a few people connected to the mesh network again > on Sunday :) I'm pretty fond of the netgear 3800 at this point. Also the picostations and nanostations are working out well. > On Fri, Jun 21, 2013 at 02:46:57PM +0200, Juliusz Chroboczek wrote: >> I've just received this from our common friends: >> >> http://www.pps.univ-paris-diderot.fr/~jch/cantine-20130621.jpeg > > Nice shot! > > We actually haven't used the Foneras, since we experimented with the > TP-Link WR703N [5] on OpenWRT AA. > > These routers are small but excellent. Compared to the Fonera, they > draw almost no power: a Fonera gets very hot within tens of minutes, > while the TP-Link were still cold after 3 days of intensive use. > > Since they have an USB port, it would be easy to turn them into cheap > multi-radios routers using an USB dongle. > > However, they have a few drawbacks: > > - limited flash space. A friend successfully bundled babeld, ahcpd > and tor, but it was tight. > > - no external connector for antenna. Note that there are hardware > hacks to do this anyway [6]. > > > Regards, > Baptiste > > [1] http://lacantine.ubicast.eu/videos/22-06-2013-124257/ > [2] http://transmission.progval.net/PSES2013/reseau_mesh.mp4 > [3] http://ze.polyno.me/babel/slides-mesh-pses-20130622.pdf > [4] http://ze.polyno.me/babel/babelweb-pses2013-nomac.tar > [5] http://wiki.openwrt.org/toh/tp-link/tl-wr703n > [6] http://wiki.openwrt.org/toh/tp-link/tl-wr703n#hardware.mods > > _______________________________________________ > Babel-users mailing list > [email protected] > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/babel-users -- Dave Täht Fixing bufferbloat with cerowrt: http://www.teklibre.com/cerowrt/subscribe.html _______________________________________________ Babel-users mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/babel-users
