[Olsr-users] TCP flow in a 5-hops wifi network - experiment

Marco Mezzavilla (spam-protected)
Wed Jul 18 18:01:24 CEST 2012

Dear all,

I've correctly deployed my multi-hop wifi network, and I put OLSR into
I am evaluating TCP transmission flows by means of IRPEF+JPERF (such useful

My question is: have any of you ever experienced the following behaviour?
The TCP throughput falls to zero because OLSR TC messages collide, thus
provoking IP entries losses.
Hence, the path is corrupted, and the TCP transmission stops for few
seconds, until new TC messages are correctly received by all the nodes..

Thank you all in advance!


On Sun, Jul 1, 2012 at 5:10 PM, Juliusz Chroboczek <(spam-protected)>wrote:

> > does anybody know where I can find a nice tutorial explaining how to test
> > OLSR on real devices?
> There's a lot of peer-reviewed papers that you should lookg at.
> Scholar.google.com is your friend.
>   http://scholar.google.fr/scholar?q=olsr+benchmarks
>   http://scholar.google.fr/scholar?q=manet+benchmarks
> etc.
> You'll probably want to set up a non-trivial topology, and make three
> kinds of tests:
>   - packet loss and latency (ping);
>   - packet loss and latency for large packets (ping -s 1300);
>   - TCP throughput (iperf);
>   - TCP throughput with multiple flows (crossed iperfs);
>   - packet loss and latency in presence of a flow (iperf crossed with
> ping).
> Please do tell us about your results.
> -- Juliusz

Marco Mezzavilla
Ph.D. Student - SIGNET Group
Department of Information Engineering (DEI)
University of Padova - Italy
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