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The needs for packet processing in a Kubernetes environment continue to evolve, and we have seen that many Cloud Native Functions require higher performance than offered by conventional networking solutions. To achieve the performance needs of these applications while continuing to support abstraction from the physical network interfaces, an interface called AF_XDP (Address Family - Express Data Path) is described along with potential use cases. A key part of this is to support the existing Kubernetes abstractions such as CNI (Container Network Interface), and to be based off of Linux network driver interfaces. Comparisons to existing alternatives will also be addressed.
- Brian Skerry, Principal Engineer, Intel