[olsr-dev] OLSR LQ Defaults

Andreas T√łnnesen (spam-protected)
Thu Nov 3 20:29:39 CET 2005


Sven-Ola, everybody,

Sounds good to me. IMO it's very cool that we get some defaults
based on rather long-term real-life usage :-)
If nobody objects to this these will be the LQ defaults for
0.4.10.

(We're very interested in this sort of feedback before the
release!)

- Andreas

> Andreas, Thomas et al.,
>
> yesterday evening I have some smalltalk with elektra about olsrd settings
> for more routing stabiltity. Because there are several devices currently
> running that Freifunk Firmware, I want to socialize about changed default
> settings prior to a mass deploy with the next FFF update. Currently, we
> use
> these defaults (a bit slower than the settings proposed with the source
> package to save CPU power with a more static not moving nodes setup):
>
> Pollrate                0.5
> TcRedundancy            2
> MprCoverage             3
> LinkQualityWinSize      18
> LinkQualityLevel 2
> UseHysteresis no
> Interface "ethX"
> {
>         HelloInterval           5.0
>         HelloValidityTime       90.0
>         TcInterval              15.0
>         TcValidityTime          90.0
>         MidInterval             15.0
>         MidValidityTime         90.0
>         HnaInterval             15.0
>         HnaValidityTime         90.0
> }
>
> Elektra points out, that it would be more stable with olsrd-0.4.10 if
> TcInterval is shorter than the HelloInterval. This may overcome the
> "routing
> loop problem" encountered occasionally because topology info is spreaded
> more frequently. My suggestion: Hello=10, TC=5, Validity stays 90. Also: a
> change of LinkQualityWinSize to 100. This makes HelloInterval *
> LinkQualityWinSize < HelloValidityTime). OK? Caveats? Any Comments?
>
> TIA Sven-Ola
>
>
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