[Olsr-dev] Feedback on current OL

Hannes Gredler (spam-protected)
Mon Jun 9 10:24:14 CEST 2008


did you see UDP checksum errors in outgoing or incoming packets ?


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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