[ovs-discuss] Questions about IPFIX

Greg Rose gvrose8192 at gmail.com
Thu Jun 8 20:32:20 UTC 2017


On 06/06/2017 05:18 AM, Felix Konstantin Maurer wrote:
> I accidentally only responded to you, so here again what I wrote.
> Thanks for the quick response! If tested it now but so far I see no
> difference. All IPFIX packets have the same flowStartDelta and flowEndDelta.
> 
> Furthermore, about the first lines in ipfix_cache_aggregate_entries?
> 
> line 1457
>      to_start = &to_entry->flow_start_timestamp_usec;
>      to_end = &to_entry->flow_end_timestamp_usec;
>      from_start = &from_entry->flow_start_timestamp_usec;
>      from_end = &from_entry->flow_end_timestamp_usec;
> 
>      if (*to_start > *from_start) {
>          *to_start = *from_start;
>      }
>      if (*to_end < *from_end) {
>          *to_end = *from_end;
>      }
> 
> Is that not supposed to update the timestamps of the old entry, into
> which the new stats are merged?
> 
> Regards
> Felix
> 

Felix,

I've been doing further testing on this and noticed that the code in the patch I
submitted is never even being touched.

I'm debugging it but I am also working on some other bugs.  I'll work on this as I
find time to do so.

Thanks,

- Greg


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