[Olsr-dev] getting the etx value to a destination

Henning Rogge (spam-protected)
Wed Jul 15 17:03:41 CEST 2009


Am Mittwoch 15 Juli 2009 16:30:19 schrieb ZioPRoTo (Saverio Proto):
> > 13:42:38.975 DEBUG(plugins) src/obamp.c 421: ROUTING TO node
> > 172.16.100.1 costs 131072
> > 13:42:38.983 DEBUG(plugins) src/obamp.c 421: ROUTING TO node
> > 172.16.100.4 costs 65536
>
> I just noticed that I get this numbers
>
> 65536 = 1x2^16
> On 1 hop with no packet loss
>
> 131072 = 2 x 2^16
> On two hops with no packet loss
>
> So to get the ETX I divide this value by 2^16 ??
Yes, this values make sense... but you SHOULD NOT assume that "65536" is 
"good", because it depends on your routing metric.

Henning
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