[Olsr-users] Multi-hop OLSR

Ben West (spam-protected)
Thu Oct 11 22:09:24 CEST 2012


How are the laptops actually building the connections w/ each other?  I.e.
over their wifi adapters, or over a wired LAN?

Also, how are you ensuring the route N1 -> N2 -> N3?  If the laptops are
meshing wirelessly, it may be difficult to ensure OLSR actually choses your
desired route, due to transient fluctuations in wifi signal quality.

If you are not already doing so, I would recommend using the
LinkQualityMult parameter on each node specify negative biases for the
node(s) you do not want to be that node's next hop.

On Thu, Oct 11, 2012 at 9:36 PM, Ricardo T. Macedo <(spam-protected)>wrote:

> Hello,
>
> I've been working with OLSR protocol and I want to reproduce a scenario
> with multi-hops. I'm using iperf to generate traffic data packet in the
> network.
> In my tests, I'm using three notebooks with backtrack linux (backtrack 5
> R2). Every notebook (nodes), I labeled by N1, N2 or N3. N1 can communicate
> with N3 only through N2, in multiple hop way. Every node is running OLSR
> protocol. I try to run the iperf as a server in N1 ($ iperf -u -s -p 5000).
> In N3, I run the iperf as a client ($ iperf -u -c <IP_address_N1> -p 5000).
> In the node N3, I just run the OLSR protocol. In a single hop, I have no
> problem, but in multi-hop it doesn't work. OLSR is finding the multi-hop
> correctly, but when I try to send the data packet I get the "WARNING: did
> not receive ack of last datagram after 10 tries" error.
>
> Does anyone have any idea about what could be wrong?
>
> Thanks,
> Ricardo
>
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-- 
Ben West
(spam-protected)
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