Virtual network function reliability deployment method based on backup revenue and remapping

Abstract

The invention discloses a virtual network function reliability deployment method based on backup revenue and remapping. The method comprises the following steps: firstly, introducing a dual-sharing backup mechanism, wherein the reliability of the service function chain is effectively improved, meanwhile, resource occupation of backup is reduced as much as possible, the resource utilization rate ofthe system is improved; and then providing a reasonable and efficient virtual network function remapping method for the virtual network function which is not subjected to reliability backup in the service function chain. The method provided by the invention is used for solving the problem that the reliability of the service function chain is reduced due to the fact that the virtual network function in the service function chain is subjected to backup recovery after a fault occurs and the reliability of the virtual network function is changed after remapping for the first time.

Description

technical field [0001] The invention relates to a virtual network function reliability deployment method based on backup revenue index and remapping, and belongs to the field of network technology. Background technique [0002] 5G is a new generation of mobile communication system for the development of mobile communication needs after 2020. With the full arrival of 5G networks, network virtualization technology has become one of the key technologies for network service model transformation and the basis for dynamic and elastic deployment of network services. Network function virtualization softwareizes the network functions on the original dedicated hardware, and realizes them by virtual network functions deployed on general-purpose servers. While reducing operating costs and improving the flexibility of network functions, it also leads to the emergence of some new problems. For example, the reliability of network services is affected by network functions, and failures of ...

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Problems solved by technology

[0005] Technical problem: The purpose of this invention is to model the reliability of virtual network functions during deployment, improve the traditional redundant backup method, and propose a virtual network function reliability deployment method based on backup income and remapping , introduce a dual-shared backup mechanism, add a backup revenue strategy, effectively improve the reliability of the service function chain, and at the same time reduce the resource occupation of backup as much as possible, improve the resource utilization of the system; and aim at the failure of reliability in the service function chain A reasonable and efficient virtual network function remapping method is proposed for the backup virtual network function; for the first time, a method is proposed to solve the problem of service failure caused by the reliability change of the virtual network function in the service function chain after backup recovery and remapping. Problems with reduced reliability of function chains

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