[Olsr-dev] Network topology if there is a node get down?

[Henning Rogge]

Am Montag 16 Juni 2008 08:06:10 schrieb Agung Septiadi:
> I have OLSR network which has topology like this.
> ...
What version of olsrd are you using ?

> Why
> all applications was disconnected after there is a node get down,
> whereas all applications was still connecting if there are node get up
> offering better link?
> Was OLSR doing something wrong?

The problem (depending on the version) might be the timer settings. With a 
hello interval of 6 seconds and a large LQ-Windowsize olsrd will be slow to 
discover a link has been broken.

Maybe you can test this settings ? (especially because you have a small net 
with powerful nodes):

DebugLevel    0
Interface "ath0"
{
    HelloInterval        2.0
    HelloValidityTime    20.0
    TcInterval            3.0
    TcValidityTime        30.0
    MidInterval            15.0
    MidValidityTime        300.0
    HnaInterval            10.0
    HnaValidityTime        120.0
}

LinkQualityFishEye 1
IpVersion    4
ClearScreen     yes
Hna4
{
}
Hna6
{
}
AllowNoInt    yes
IpcConnect
{
     MaxConnections  0
     Host            127.0.0.1
}
UseHysteresis    no
LinkQualityLevel    2
LinkQualityWinSize    20
Pollrate    0.1
TcRedundancy    2
MprCoverage    2

Plus the Hna4 on the gateway
> On Gateway (Node D), I have added HNA configuration
> Hna4
> {
>   0.0.0.0 0.0.0.0
> }

Henning


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