[Server-devel] mesh network

[John Watlington]

Sulochan,
     Ricardo is one of the people developing and testing the mesh for  
OLPC, and he
is already helping you.

If you can't hop from XO to XO, it sounds like your problems are not  
in the school server.
What channel are you using ?    Are you sure that both laptops and  
the server are on the
same channel ?    Are there any other 802.11 networks in the area ?    
What channel are they on ?

What does ifconfig and iwconfig report on all three machines ?

The networking on the XS side is best described by:
http://wiki.laptop.org/go/ 
XS_Configuration_Management#School_Specific_Configuration

Outside of setting a few special bits in the Active Antenna interface  
to get it to act as
a mesh portal, the setup is a standard networking gateway.  Those  
bits used to be set by:
/etc/init.d/olpc-mesh-config
http://dev.laptop.org/git?p=projects/xs- 
config;a=blob_plain;f=fsroot.olpc.img/etc/init.d/olpc-mesh- 
config;hb=HEAD
(and still are), but they are primarily set by a udev script  
(enabling hotplug of the active antennas):
/etc/udev/rules.d/10-olpcmesh.rules
http://dev.laptop.org/git?p=projects/xs- 
config;a=blob_plain;f=fsroot.olpc.img/etc/udev/rules.d/10- 
olpcmesh.rules;hb=HEAD

If your fwt_list doesn't show any other mesh nodes, start there...

John

On Feb 20, 2008, at 7:25 AM, sulochan acharya wrote:

> Hi John and Ivan,
> I am having  some trouble getting my mesh to fully work. Basically  
> i can get two antennas to work at the same time.
> They are both using the same firmware and work separately. Also i  
> cant hop from xo to xo to the server. It would be great
> if you guys can give me a great brief overview of how the  
> networking is handled by the XS. I am trying to set it up for the  
> Nepal pilot in April.
>
> thanks in advance,
> best
> Sulochan