[Battlemesh] testing status

Markus Kittenberger Markus.Kittenberger at gmx.at
Fri Mar 30 11:18:59 UTC 2012


On Fri, Mar 30, 2012 at 12:54 PM, Yeoh Chun-Yeow <yeohchunyeow at gmail.com>wrote:

> Hi, Markus
>
> It is still working as usual. No problem. But with multicast/broadcast
> at default rate (1Mbps), the coverage of the node will be larger since
> node located further can hear the beacon frame. 802.11s is still able
> to use the mcast_rate of 6Mbps but the iw utilities currently in our
> test firmware is not available

hmm what means not available?

(my fault to not provide Nico in
> advanced).
>
> By the way, can someone explain why adhoc mode needs to increase the
> multicast rate to 6Mbps?
>
adhoc mode does not need 6mbps, "our" routing protocols also do not need a
specifiy multi-cast rate,.

but having it on 1mbit, means protocol traffic needs more airtime. (which
especially in large networks (with more protocol traffic) gets an issue)

and additionally 1mbit mcast-rate means that the link-quality detection
which is based on packetloss or protocol traffic, will test the link with
an quite "unrealistic" rate, leading to detection of links which for any
higher througput are undesireable anyways

therefore in many community networks we usually use a higher multicast rate.

>
> -- Chun-Yeow
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