Although packet forwarding with VPP and DPDK can now scale to tens of millions of packets per second per core, lack of alternatives to kernel-based sockets means that containers and host applications cannot take full advantage of this speed. To fill this gap, VPP was recently added functionality specifically designed to allow containerized or host applications to communicate via shared-memory if co-located, or via a high-performance TCP stack inter-host.
In this talk, we will provide an overview of the major components of the host stack: shared memory fifos, session layer, TCP stack, communications library and discuss how existing and new applications could leverage the benefits of this new architecture.
