Lightweight network function virtualization system and virtualization method

Abstract

The invention discloses a general lightweight network function virtualization system and a corresponding virtualization method. Based on the popular virtual switch pipeline technology in the current data center, a simple and common application program interface API is provided for most of the virtual network function VNF. The VNF uses the lightweight remote call protocol JSONRPC to call the application program interface API, so as to achieve direction control of the local software definition network SDN flow table in which the partial function of the VNF can be written, and the partial function of the VNF is locally completed. Virtualization of network functions is realized by using the virtualization system and the virtualization method of the invention, and all the network traffic is prevented from being imported into the remote VNF processing and the VNF load is reduced. At the same time, some traffic is no longer imported into the remote VNF, thereby slowing down the network load and reducing the communication delay.

Description

technical field [0001] The invention relates to the fields of software-defined network SDN and network function virtualization NFV, and in particular to a lightweight network function virtualization system and a virtualization method thereof. Background technique [0002] Network function virtualization refers to the technology of replacing dedicated physical devices with general-purpose software. Take the initial network model of the Neutron module in the cloud operating system OpenStack as an example. In the model, the two network functions of virtual router and NAT are deployed on a separate physical node. As a network node, all communication must pass through the network node. point (can also be deployed in a virtual machine, but the performance is worse). In this network model, the communication between different network segments needs to pass through the virtual router, and the communication between the same network segments also needs to pass through the virtual rout...

AI Technical Summary

Problems solved by technology

Take the initial network model of the Neutron module in the cloud operating system OpenStack as an example. In the model, the two network functions of virtual router and NAT are deployed on a separate physical node. As a network node, all communication must pass through the network node. point (can also be deployed in a virtual machine, but the performance is worse)

In this network model, the communication between different network segments needs to pass through the virtual router, and the communication between the same network segments also needs to pass through the virtual router, which leads to too high load on the network nodes, and the virtual router implemented by software has completely become a virtual router. performance bottleneck

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