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From: Marek Lindner <mareklindner@neomailbox.ch>
Subject: Re: Batman-adv packet retranslation
Date: Mon, 25 May 2020 10:57:16 +0200
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On Sunday, 24 May 2020 23:53:05 CEST Alexey Ermakov wrote:
> > As Marek pointed  out, you told batman-adv that the  eth0 interfaces have
> > for some reason a link speed of 0.1 [Mbit/s] (or 1 [100Kbit/s] - what the
> > actual unit is for B.A.T.M.A.N. V). And unfortunately, 88% (for the hop
> > penalty) of 1 [100 Kbit/s] is in integer arithmetic 0 [100 Kbit/s]. And 0
> > whatever/s is just discarded by B.A.T.M.A.N. V [1] and not considered for
> > routing traffic - hey, this path ends up as being 0 and therefore
> > useless.
> > The reason why you want to set the link to 1 [100 Kbit/s] has to be
> > figured
> > out by yourself. But for a (during forwarding) strictly monotonic
> > decreasing, integer value, it is a bad starting point to set it to 1
> > [whatever-unit] for a multi-hop setup.
> 
> I have three interfaces on each node:
> eth0 - radio modem, speed 145 kbit/s (see desiription below)
> eth1 - ethernet, speed 100mbit/s
> eth2 - radio modem 10kbit/s (hasn't been tested yet)

Before we go to the next setup, can you confirm that your virtual setup works 
as expected once the throughput is not set to 0.1 MBit/s ?

Kind regards,
Marek


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