[ovs-discuss] OVS - Netflow/IPFix export of custom metadata.

Ben Pfaff blp at ovn.org
Wed Sep 25 17:12:26 UTC 2019


I'm sure the OVS project would accept IPFix improvements to export more
fields or metadata, if anyone would like to prepare patches for that.

On Fri, Sep 13, 2019 at 10:41:22PM +0900, Motonori Shindo wrote:
> Rajesh,
> 
> OVS supports NetFlow V5 and IPFIX (a.k.a. NetFlow v10). NetFlow V5 as a
> protocol can't export information other than the pre-defined information
> element such as src/dst IP address, src/dst port number, protocol, nexthop
> address, input/output interface, etc. IPFIX, on the other hand, has
> extensibility and can export additional information. However, IPFIX in OVS
> only exports information similar to NetFlow V5. It doesn't have a
> configuration knob to have it export additional information element.
> 
> Regards,
> 
> Motonori Shindo
> 
> 2019年9月13日(金) 21:01 Rajesh Kumar <rajesh.kumar at certesnetworks.com>:
> 
> >
> > Hi,
> >
> > The inbuilt OVS netflow export feature seems to export the 5 basic info
> > present in the packet  (src dst mac,src dst IP, port).
> > Is there any option to export other data present in a packet.
> >
> > Without OVS, I was able to do netflow export using a tool called pmacctd.
> > It supported exporting basic netflow data and custom metadata (this was
> > present as part of the packet itself at specific byte location). There was
> > a way to specify custom data with packet pointer bytes, length in pmacctd
> > tool. Just wanted to check whether any such option in current OVS setup.
> >
> >
> >
> >
> > Thanks,
> > Rajesh kumar S R
> > _______________________________________________
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> > discuss at openvswitch.org
> > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
> >

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