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

Abstract

The invention discloses an adaptive service function chaining path selection method and system for network function virtualization. The system comprises a service function chaining controller, whereinthe service function chaining controller is provided with a service function chaining communication module and a service function path selection module; the service function chaining communication module receives a request sent by a service requester, and performs communication to issue a policy; and the service function path selection module filters service function instances and service function paths, calculates the benefits of the service function paths, and selects the service function path with the optimum benefit. According to the scheme of the invention, a service function path selection mechanism is proposed, and by filtering the service chain type of which the service function paths can meet the requirements, the load of the service function instances can also be reduced; the load of the service function instances can be dispersed, the phenomenon that the load of the system environment is too unbalanced can be avoided, and the service function path of a relatively high service-level protocol can also be provided; and according to the invention, the number of service chain requirements for receiving services can be increased, and the packet loss rate can be reduced.

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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