openvswitch: Extend packet attribute for egress tunnel info
OVS vswitch has extended IPFIX exporter to export tunnel headers to improve network visibility. To export this information userspace needs to know egress tunnel for given packet. By extending packet attributes datapath can export egress tunnel info for given packet. So that userspace can ask for egress tunnel info in userspace action. This information is used to build IPFIX data for given flow. Signed-off-by: NWenyu Zhang <wenyuz@vmware.com> Acked-by: NRomain Lenglet <rlenglet@vmware.com> Acked-by: NBen Pfaff <blp@nicira.com> Signed-off-by: NPravin B Shelar <pshelar@nicira.com>
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