On October 30, 2014 at 1:26:24 AM, Graham, Mark 
(mark.gra...@anglia.ac.uk(mailto:mark.gra...@anglia.ac.uk)) wrote:
> I am experiencing something similar. I have tested OVS NetFlow with a bunch 
> of collectors, and experienced no problems at all.

That’s because NetFlow v5 is not extensible like IPFIX, so it’s logical for 
NetFlow collectors to only support a fixed set of elements.

> However I have not found a single collectors that supports IPFIX from OVS. 
> Tcpdump and wireshark both show that IPFIX is on the wire. Several collectors 
> will see the stream but omit the timestamp – which I guess is due to the 
> IPFIX template being used?

Yes, very probably.
We welcome patches to extend or improve the templates to make them work with 
more collectors, or at least information about which elements are expected by 
popular collectors.

> Do you have any recommendations as to a collector please?

I’ve heard people have successfully used recent versions of nfdump to collect 
IPFIX from OVS:
http://nfdump.sourceforge.net/
-- 
Romain Lenglet
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