OpenStack Oriented Networking-VPP Network Optimization Method

This paper presents a method to deploy the virtual router on the network node of OpenStack platform by using the networking VPP (Vector Packet Process) as the virtual router. This method is dedicated to high-speed network tasks. It runs on the DPDK (Data Plane Development Kit) user space, does not use the kernel driver to obtain packets from the hardware. The sending, receiving and processing of messages are implemented in user space, which means less kernel calls, less context switching and faster processing. In this method, the computing nodes and network nodes are deployed separately, and the user mode forwarding work of network node data plane is transferred to VPP. VPP is used to realize the function of three-layer routing and forwarding, which can accelerate the east-west traffic of VLAN network, also can improve the performance of three-layer routing and forwarding by 3-5 times. By this method, the bottleneck of OpenStack network can be eliminated, the performance of data center network can be further optimized.