[OLSR-users] unstable routing tables with 0.4.8

[lee hughes]

hmm, do you mean that your processor is at >100% cpu time?

okay, if your olsd daemon is loosing packets or not processing packets
quick enough, then I suppose it will loose track of the network. In
fact cisco routers do the same thing when they 'go crazy'.

if you must use your routing infrastrucutre to run applications (not a
good idea really). then you could probably increase the priority of
the olsrd process using nice. that's not going to help if your machine
is swapping (memory bound) or you time scheduler is not that clever
(or too clever!). as I don't know what operating system your using, I
can't help you much.

if the network interface is (also) overloaded, then you can setup
iptables/qos and make sure olsr packets take priority over all other
incomming/outgoing traffic queue's. thus even if your links are full
of traffic, olsrd will also get through promptly.

what are you running olsrd on? why are you running applications on
your routers? ;-).

Laters,
Lee
'just because you can, does'nt mean it's a good idea'


On 8/2/05, Franca Delmastro <(spam-protected)> wrote:
>  
> Hi all! 
> I have done several experiments with olsr 0.4.8 and 22 nodes connected in ad
> hoc mode. 
> I noticed that, increasing the application level traffic, the number of
> neighbors in the routing table decreased until only 1-hop neighbors are
> maintained. Specifically after few seconds the topology passes from 22 nodes
> to 15, then from 15 to 10, then from 10 to 5 and until the end of the
> esxperiment the list of neighbors varyes from 5 to 1, all of them 1-hop
> neighbors. 
> Do you know if it can be a problem related to the management of TC messages
> and their forwarding?? 
> In addition there is some priority option set on olsrd socket in order to
> give a higher priority to routing traffic instead of other application
> traffic sent concurrently on the network??  
>   
> Thanks in advance for your help! 
> Franca 
> _______________________________________________
> olsr-users mailing list
> (spam-protected)
> https://www.olsr.org/mailman/listinfo/olsr-users
> 
> 
>