SDN/NFV-based virtual network function embedding method and system

Abstract

The invention relates to a virtual network function embedding scheme. In a first stage, the invention provides a virtual network function embedding method based on SDN / NFV, which improves the economic benefits of service providers while reducing the service delay. A virtual network function embedding problem is modeled as a many-to-one matching problem of a VNF and a physical node, so that joint optimization is performed on service delay and a ratio of income to cost of a service provider, and global optimal embedding is realized. In a second stage, the invention provides a virtual network function embedding system based on SDN / NFV, flexibility, intelligence and efficiency of physical network resource management are improved by fusing SDN and NFV architectures, and efficient embedding of virtual network functions is realized based on the virtual network function embedding method in the first stage.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a method and system for embedding virtual network functions based on SDN / NFV. Background technique [0002] With the rapid development of the Internet of Things and cloud computing technologies, the traditional network architecture can no longer meet the development requirements of emerging services. The traditional method of providing network services is realized through dedicated hardware devices, but the design, production and deployment costs of hardware middleware are high, and manual configuration and management of devices are required, which further increases the cost of service providers. [0003] Software-Defined Networking (Software-Defined Networking, SDN) and Network Function Virtualization (NetworkFunction Virtualization, NFV) provide an effective solution. Among them, the SDN architecture separates the data plane and control plane of network devices to realize...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional virtual network function embedding method only considers the problem from a single perspective, such as optimizing the entire service request delay from the perspective of business service quality or optimizing the service cost from the perspective of the service provider, which often fails to reach both parties. optimal state

In addition, the traditional virtual network function embedding method only considers the order of service arrival, but does not take into account the differences in the business itself, and cannot guarantee the service quality of delay-sensitive services, resulting in poor overall embedding performance

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