Adaptive service function chain path selection method and system for network function virtualization

Abstract

The invention discloses a network function virtualization adaptive service function chain path selection method and system, which includes a service function chain controller; the service function chain controller is provided with a service function chain communication module and a service function path selection module; The function chain communication module receives the request sent by the service requester, and communicates and releases the policy; the service function path selection module filters the service function instance and the service function path, calculates the benefit of the service function path, and selects the service function path with the best benefit. The invention proposes a service function path selection mechanism, which can reduce the load of each service function instance by filtering the service function path that can meet the requirements of the service chain type; it can disperse the load of the service function instance, avoid the system environment load from being too unbalanced, and can also reduce the load of each service function instance. A service function path with a relatively high service level protocol is provided; the invention requires an increased number of service chains for receiving services, and can reduce the packet loss rate.

Description

technical field [0001] The invention relates to the field of network services, in particular to a network function virtualization adaptive service function chain path selection method and system. Background technique [0002] With the rapid development of the Internet and the cloud, network service providers must add more dedicated hardware devices to provide specific network functions in order to provide more and more network services in the limited space of the computer room. The connection and settings are also very complicated. Therefore, under the future network, the traditional network construction method is bound to be unable to meet the demand for substantial growth, so Network Function Virtualization (Network Function Virtualization, NFV) technology is a solution. [0003] Network function virtualization can virtualize network functions, install them on virtualized machines in the form of software to provide network functions, and combine service function chaining ...

AI Technical Summary

Problems solved by technology

[0006] The establishment and configuration of the traditional network is a static and fixed mode, and the network topology and the physical network are in a coupled mode. Therefore, operators must go through a complicated configuration process to introduce new services and adjust the network service chain, and may also move to the original network. Connection deployment affects the original service supply, so the traditional network service supply model can no longer meet a large number of network service needs

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