[Olsr-dev] Different time and interval configurations

[Henning Rogge]

Am Freitag 20 Juni 2008 10:53:03 schrieb Mitar:
> What are consequences of having nodes with different *interval (like
> HelloInterval) and *time (like HelloValidityTime) values in a mesh?
Hello intervals are important for discovery time of new links. Long intervals 
mean longer time to discover/loose links, small intervals spam traffic.

Hello timeouts are similar for link cleanup (how long does it take to forget a 
link completely), but they are not as important as intervals because of the 
ETX implementation.

> It is not maybe even good that they would be a little different and so
> make recovery even more "organic" and non-deterministic? Maybe having
> those values being a random value would also be interesting? Or some
> adaptation/learning algorithm where nodes would gradually come to the
> optimal values by themselves?
We have plans to change the hello intervals depending on the mobility of a 
node, but there are other concepts to use "stability of links" as a 
measurement for hello intervals.

Henning


*************************************************
Diplom Informatiker Henning Rogge
Forschungsgesellschaft für
Angewandte Naturwissenschaften e. V. (FGAN) 
Neuenahrer Str. 20, 53343 Wachtberg, Germany
Tel.: 0049 (0)228 9435-961
Fax: 0049 (0)228 9435-685
E-Mail: (spam-protected)
Web: www.fgan.de
************************************************
Sitz der Gesellschaft: Bonn
Registergericht: Amtsgericht Bonn VR 2530
Vorstand: Dr. rer. nat. Ralf Dornhaus (Vors.), Prof. Dr. Joachim Ender 
(Stellv.)