Wireless mesh networking

[Rui Paulo]

On 26 May 2009, at 11:06, Ian Smith wrote:

> On Sun, 24 May 2009, Rui Paulo wrote:
>> Hi,
>> If anyone is interested in testing out wireless mesh networking under
>> FreeBSD, the project has now reached a point where you can transfer
>> packets between mesh nodes.
>
> Always a good point to celebrate :)
>
>> I try to keep the branch in sync with head (sometimes more than)
>> weekly. The branch is located at the FreeBSD svn repo and everyone  
>> can
>> fetch it:
>>
>> $ svn co http://svn.freebsd.org/viewvc/base/projects/mesh11s/
>
> Not that I could run it now or even soon, but I'm interested in  
> having a
> look at the code, mostly to try figuring out the scope of what layers
> this is working at, and noting that this is my first ever attempted  
> use
> of svn (and if it matters, on a 5.5-S box):
>
> sola% mkdir 802.11s
> sola% cd 802.11s/
> sola% svn co http://svn.freebsd.org/viewvc/base/projects/mesh11s/
> svn: PROPFIND request failed on '/viewvc/base/projects/mesh11s'
> svn: PROPFIND of '/viewvc/base/projects/mesh11s': 301 Moved (http://svn.freebsd.org 
> )
>
> Where to from here?  Might there be an old-fashioned tarball?

Sorry, what Brooks said.

>
>> To actually try out mesh networking you need ath(4) because ral(4)  
>> has
>> problems right now.
>>
>> After building and installing a new world and kernel, you need to  
>> do this:
>> # ifconfig wlan0 create wlandev ath0 wlanmode mesh channel 1 meshid  
>> mymesh
>> # ifconfig wlan0 inet w.x.y.z/q up
>>
>> Channel discovery for mesh networks is not yet implemented, hence you
>> need to manually specify the channel on which the mesh is running  
>> (all
>> nodes must be on the same channel and same meshid, just like regular
>> AP operation).
>
> Not more like regular ad-hoc operation?

Yes, it's more like ad-hoc, but I was just illustrating a point for  
those that are more familiar with hostap networks having several nodes.

> Pardon my ignorance.  I've followed your later wikipedia links and  
> many
> others from there, but still haven't got much of an overview.  I'm a
> little familiar with how OLSR works, and got some meaty clues reading
> about the OLPC XO-1 use of their subset of 11s, but that's it so far.

Well, you can try google for more information. The links I emailed  
were accessible to almost everyone. If you have a PowerPoint file  
reader, you will find much more information related to 802.11s on the  
web.

Regards,
--
Rui Paulo

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