[Olsr-dev] Which metric is currently running on OLSRd2

Henning Rogge (spam-protected)
Wed Mar 19 12:01:56 CET 2014


Olsrd2 runs an airtime metric as the default implementation, one that
we are in the process of standardizing:


It use a directional measurement of packet loss and link speed from
the linux wifi kernel to calculate.

There is also a variant that use a bi-directional packet loss
measurement as described in the original ETT papers.

There is no ETX implementation for OLSRd2, but of course if your
kernel cannot supply the link speed, the airtime metric degrades into
a packet loss metric.

Henning Rogge

On Wed, Mar 19, 2014 at 11:22 AM, Syed Salman Haider Rizvi
<(spam-protected)> wrote:
> Hi All ,
>       Just let u guys know the scenario . I m running 14 hops testbed for
> performance evaluation of (ETT vs ETX vs HC) on  olsrd2 . Last time i tried
> both ett and etx on my testbed but my route was not changing and even
> getting the same throughput on both ETT and ETX . So is there anyways to see
> which metric is currently on and for HC i will surely use olsrd1 but i think
> there will be a lot difference in the throughput maybe the size of olsrd1
> and olsrd2 packets are different ?
> Salman
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