[Olsr-dev] Feedback on current OL

[Aaron Kaplan]

>
did you observe over a longer period of time?

My experience is that it takes a long time until ir really drops to  
1.0 (or slightly above)
due to the new exponential backoff.


> This new machine is getting a metric of 1.061 over the Ethernet link
> instead of 1.150 like the suspect machine. Just a question, why is the
> metric 1.061 instead of 1.000. I think that it is unlikely that an
> uncongested Ethernet link would drop a packet.
>
>>
>> /hannes
>>
>> David Murray wrote:
>>> Quoting Hannes Gredler <(spam-protected)>:
>>>
>>>> david,
>>>>
>>>> did you see UDP checksum errors in outgoing or incoming packets ?
>>>
>>> They are outgoing hellos. The interface is an Ethernet Interface.
>>>>
>>>> /hannes
>>>>
>>>> David Murray wrote:
>>>>> Hi guys, just a bit of feedback on the latest development branch
>>>>> found here [1]. I have had it running in my test setup (8 dual
>>>>> radio ALIX nodes) for about 3-4 days. It seems to be working
>>>>> great, however, one problem I have found is with the the metric.
>>>>>
>>>>> Currently, I have a 100mbit Ethernet link that is being given a
>>>>> metric of ~1.150. Iperf shows that this link provides ~100 mbit
>>>>> which means that there is nothing physically wrong with the link.
>>>>> To investigate a little further I pulled up wireshark and took a
>>>>> look at the OLSR hellos.
>>>>>
>>>>> The wireshark output was showing some UDP checksum errors "maybe
>>>>> caused by UDP checkum offload" on some olsr hello packets. Perhaps
>>>>> if anyone else is using this branch they could confirm whether
>>>>> they are also getting the errors or if it is something specific
>>>>> with my equipment.
>>>>>
>>>>> Thanks
>>>>> Dave
>>>>>
>>>>> [1] http://gredler.at/hg/olsrd/archive/tip.tar.gz
>>>>>
>>>>
>>>
>>>
>>
>
>
>
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