[Olsr-users] Looking for dev to make custom plug-in for our network

Michel Blais (spam-protected)
Thu Jan 10 18:27:59 CET 2013

I know it can be use by other network than adhoc. We use it with success 
over a fixed wirless network including wired part of the network.

To explain a little we're a WISP covering rural area. Some of our main 
backhaul use 24 Ghz frequency heavilly affected by rain. When it happen, 
olsr will flap a lot between this link and backup link since without 
traffic on the link, when olsr route the traffic on a other link, it 
don't have any lost so will try back this link again. We need to disable 
those link manually for now so what we was thinking was to make a 
plug-in that would check link signal via SNMP, check more often if 
signal is over a first threshold and cut it if signal is over a second 
threshold. Since you can't remove a interface from olsr without 
restarting it, we we're thinking about blocking via iptables olsr paquet 
(in and out).

The other thing was for QoS. What we was thinking was that OLSR could 
drop traffic shapping over a link until the're no lost on this link. 
With olsr paquet priorised, that would mean that every traffic priorised 
like VoIP would also don't have any lost and bulk taffic over traffic 
shapping could be drop by the router instead of send it via the wireless 
link and affecting latency. This plugin should also have a treshold that 
if traffic shapping goes lower than this treshold, link should be 
disable instead and a alert should be send.

I know Markus mentionned on this list that it's possible to priorise 
olsr paquet without using traffic shapping to have full throughput of 
the link but in our case, router and wireless link are not on the same 
device, it's impossible to change QoS rule on those wireless link and 
latency is more important than throughput.

If the community want to do it, we could send a donation to the project 
(even if I don't see any way to do it on the web page) instead of paying 
dev for those plug in.

Le 2013-01-10 11:35, Ben West a écrit :
> OLSRd can (and has been) used in media besides adhoc 802.11 wireless 
> networks.  Conceivably, one could use it on wired transport layers 
> like a coaxial cable network, old-school "thick" Ethernet with vampire 
> taps, and possibly even CAN.
> (Meaning there may be segments of the OLSRd community who would find 
> the plugins useful.)
> Are there any details about the desired features of the plugins you 
> are willing to share publicly?
> On Thu, Jan 10, 2013 at 8:59 AM, Michel Blais 
> <(spam-protected) <mailto:(spam-protected)>> wrote:
>     Hi all,
>     We are looking for a dev that could make us 2 custom olsrd plug-in
>     for our network.
>     Those plug-in would be useless for olsrd community since not for
>     ad-hoc network.
>     Of course, we would pay for the work.
>     If somebody interessted, please contact me outside of the list.
>     Thanks
>     Michel
>     -- 
>     Olsr-users mailing list
>     (spam-protected) <mailto:(spam-protected)>
>     https://lists.olsr.org/mailman/listinfo/olsr-users
> -- 
> Ben West
> (spam-protected) <mailto:(spam-protected)>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.olsr.org/pipermail/olsr-users/attachments/20130110/a227cdb4/attachment.html>

More information about the Olsr-users mailing list