[Olsr-dev] link quality vs. application packet loss
Sven-Ola Tuecke
(spam-protected)
Thu May 31 11:51:56 CEST 2007
Right. And there's a big difference between Broadcast and Unicast.
// Sven-Ola
"giuseppe de marco" <(spam-protected)> schrieb im Newsbeitrag
news:(spam-protected)
> Victor lyamtsev wrote:
>> Hi,
>> I tried to compare packet loss reported by OLSR demon ( Linux ) and
>> "iperf'" I am running between 2 wireless ad-hoc nodes
>> and I wonder why I don't see clear correlation... OLSR reports ILQ =
>> 0.3 ( 70 % packet loss ??) for "transmitter" node when I don't
>> stream any data. What makes this packet loss percentage so high? Can
>> someone advise me on what I can manipulate to change the number?
>> I tried to send enough UDP packets to "congest" the channel enough to
>> cause 70-80% packet loss in "iperf". The ILQ number can fluctuate up
>> and down for breif moments but on average stays the same. Should't
>> "Hello" packet loss change on the congested link? Is there any
>> difference on how "Hello" traffic is treated from application traffic,
>> e.g. does it have higher routing priority?
>> Thank you,
>> -v
>>
> Because OLSR compute the p.loss on HELLO messages basis and not on
> application data losses.
> G
>
>
> --
> Giuseppe De Marco, phD
> Toyota Technological Institute
> 468-8511 Aichi 2-12-1 Hisakata, Tenpaku-ku,
> Nagoya, Japan
> Email: demarco at toyota-ti dot ac dot jp
> Tel (int): +81 (052)-809-1802
> Skype-Id: giuseppe_dem2
>
>
--------------------------------------------------------------------------------
> --
> Olsr-dev mailing list
> (spam-protected)
> https://lists.olsr.org/mailman/listinfo/olsr-dev
>
More information about the Olsr-dev
mailing list