mesh networking with Wrt54g + OLSR

hello

I've built an integrated firmware for Linksys Wrt54g with the
following features :

- unik OLSR 0.44 : OLSR allow mesh networking
- micro-asp : a mini httpd server for administration and configuration
- DHCP on lan
- automatic traffic forwarding between all connected AP sharing same
SSID, channel and wep keys
- crontab for periodical tasks
- automatic installation with predifined parameters for new AP
that have never been modified having linksys defaults
- opensource firmware based on OpenWrt b4 with custom features
also available as source or binary firmware.

Y'll find some documentation in french here :

http://reseaucitoyen.be/index.php?OpenWrt
http://reseaucitoyen.be/index.php?OpenWrtMQ

and standard documentation for OpenWrt :

http://openwrt.ksilebo.net/

feedback would be appreciated.

Marc.

firmware and source are here :

http://wrt54g.free.fr/openwrt/b4/mq/

Hello Marc,

Do you have a link on reseaucitoyen.be that shows some performance data
? latency ? jitter ?

I want to be able to respond to Francis da Costas (MeshDynamics) post on
http://mark.cabiling.free.fr/mobilemesh/

Rgds
Mark

Marc wrote:

> hello
>
> I've built an integrated firmware for Linksys Wrt54g with the
> following features :
>
> - unik OLSR 0.44 : OLSR allow mesh networking
> - micro-asp : a mini httpd server for administration and configuration
> - DHCP on lan
> - automatic traffic forwarding between all connected AP sharing same
> SSID, channel and wep keys
> - crontab for periodical tasks
> - automatic installation with predifined parameters for new AP
> that have never been modified having linksys defaults
> - opensource firmware based on OpenWrt b4 with custom features
> also available as source or binary firmware.
>
> Y'll find some documentation in french here :
>
> http://reseaucitoyen.be/index.php?OpenWrt
> http://reseaucitoyen.be/index.php?OpenWrtMQ
>
> and standard documentation for OpenWrt :
>
> http://openwrt.ksilebo.net/
>
> feedback would be appreciated.
>
> Marc.
>

Mark Cabiling wrote:
> Hello Marc,
>
> Do you have a link on reseaucitoyen.be that shows some performance data
> ? latency ? jitter ?
>
> I want to be able to respond to Francis da Costas (MeshDynamics) post on
> http://mark.cabiling.free.fr/mobilemesh/
>
> Rgds
> Mark

I made some tests along time ago. Those tests was done in my house.
I have made a little mesh network working and linked together.
Two of the AP have no antenna to reduce spread range and build
multiples hops.


http://reseaucitoyen.be/index.php?OpenWrtMesureDeDebits

I was able make 300kB/s and ping results show about 3-4 ms
for each hops.

This is now a real test with 3 hops :

traceroute to 169.254.0.57 (169.254.0.57), 30 hops max, 38 byte packets
1 10.0.0.66 (10.0.0.66) 1.052 ms 0.589 ms 0.544 ms
2 wl51 (169.254.0.51) 2.669 ms 2.878 ms 2.321 ms
3 wl63 (169.254.0.63) 10.807 ms 4.180 ms 4.159 ms
4 wl57 (169.254.0.57) 12.618 ms 7.721 ms 7.037 ms

wl51-wl63 is about 850m omni directional antenna
wl63-wl57 is about 50m.

for stability, I've limited to 2Ms/s my mesh network.

I had a look at your page and the perfs seem good. However have u tried
adding devices to the mesh ? For example 3 or 4 laptops at the same time ?

Marc wrote:

> Mark Cabiling wrote:
>
>> Hello Marc,
>>
>> Do you have a link on reseaucitoyen.be that shows some performance
>> data ? latency ? jitter ?
>>
>> I want to be able to respond to Francis da Costas (MeshDynamics) post
>> on http://mark.cabiling.free.fr/mobilemesh/
>>
>> Rgds
>> Mark
>
>
> I made some tests along time ago. Those tests was done in my house.
> I have made a little mesh network working and linked together.
> Two of the AP have no antenna to reduce spread range and build
> multiples hops.
>
>
> http://reseaucitoyen.be/index.php?OpenWrtMesureDeDebits
>
> I was able make 300kB/s and ping results show about 3-4 ms
> for each hops.
>
> This is now a real test with 3 hops :
>
> traceroute to 169.254.0.57 (169.254.0.57), 30 hops max, 38 byte packets
> 1 10.0.0.66 (10.0.0.66) 1.052 ms 0.589 ms 0.544 ms
> 2 wl51 (169.254.0.51) 2.669 ms 2.878 ms 2.321 ms
> 3 wl63 (169.254.0.63) 10.807 ms 4.180 ms 4.159 ms
> 4 wl57 (169.254.0.57) 12.618 ms 7.721 ms 7.037 ms
>
> wl51-wl63 is about 850m omni directional antenna
> wl63-wl57 is about 50m.
>
> for stability, I've limited to 2Ms/s my mesh network.

Mark Cabiling wrote:
> I had a look at your page and the perfs seem good. However have u tried
> adding devices to the mesh ? For example 3 or 4 laptops at the same time ?

no, but there is no problems at all.

i'm currently building a meshed network with this technology ;
the main goal for this network is to share internet connection
or to pull ADSL away from where it is present.

I think we will not have probleme for small network under 20 units.
But I can figure for larger networks.