[Olsr-users] QoS over OLSR

[Henning Rogge]

Am Wed September 16 2009 15:36:08 schrieb Owain Davies:
> QoS - Prioritisation of a subset of users' traffic.
Okay...

OLSRd does not handle the user traffic itself, it just set up kernel routes. 
So a first step might be to set up a traffic priorization on each node for 
certain traffic classes. Reserving capacity on a "path" is not enough for a 
wireless medium, because other transmitters will still jam you.

> Security - External mainly. Will only start to consider Internal if
> everything else goes really well. 
The easiest way to do this with OLSR would be encrypting all OLSR messages 
with a secret key and use IPsec for the unicast traffic.

> Multicast - Spares would be best. The
> demo will probably only be 10-20 devices, but the a full implementation
> could have hundreds, with tens of groups and people in a groups will
> usually also be physically in a group.
Like I said, we have a sparse multicast in the development tree (not for 
0.5.6), but it does not support multicast groups.

A multicast plugin with kernel based multicast forwarding would be a great 
thing, but difficult to implement in a MANET.

Henning

-- 
Diplom-Informatiker Henning Rogge , Fraunhofer-Institut für
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