Hi Ben, Thanks for review. In my opinion, the ofp_port may be the same on different bridge. If so, we still don’t differentiate the flows in this scenario. That’s why I choose to use odd_port.
Bests, Daniel > On Jul 5, 2016, at 5:22 AM, Ben Pfaff <b...@ovn.org> wrote: > > On Thu, Jun 30, 2016 at 08:48:43PM -0700, Daniel Benli Ye wrote: >> In virtual evironment, IPFIX is unable to differentiate flows >> between pair of VMs on different virtual network if their IP/mac >> are same. >> >> Network: >> VM1 <---- VNI1 ----> VM3 >> VM2 <---- VNI2 ----> VM4 >> >> In terms of IP/mac: >> VM1 == VM2 >> VM3 == VM4 >> >> Send 10 packets each from VM1 - VM3 and VM2 - VM4 >> Expectation: >> - Normal IPFIX record for 10 packets from VM1-VM3 >> - Tunnel IPFIX record for 10 packets from VM1-VM3 >> - Normal IPFIX record for 10 packets from VM2-VM4 >> - Tunnel IPFIX record for 10 packets from VM2-VM4 >> What really is: >> - Normal IPFIX record for 20 packets from VM1-VM3 (or VM2-VM4) >> - Tunnel IPFIX record for 10 packets from VM1-VM3 >> - Tunnel IPFIX record for 10 packets from VM2-VM4 >> IPFIX is unable to differentiate that VM1-VM3 and VM2-VM4 are actually >> 2 different flows for normal record. >> >> Add ingress and egress interface which are the odp_port in the OVS >> bridge to differentiate the flows above. Use IPFIX Information Element >> identifiers "ingressInterface" and "egressInterface" in rfc5102 to >> carry the information. >> >> Signed-off-by: Benli Ye <dani...@vmware.com> >> >> --- >> v1 -> v2: >> - Use 32bit odp_port instead of ofp_port. >> - Fix some "sparse" warnings. > > I don't understand why this switches from ofp_port to odp_port. The ODP > port numbers are not part of the Open vSwitch external interface; they > are only an implementation detail. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
