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Service function chaining dynamic deployment method based on QoS (Quality of Service) guarantee

A service function chain and dynamic deployment technology, which is applied in the field of dynamic deployment of service function chains based on QoS guarantees, can solve problems such as increasing the length of service function chains, increasing end-to-end delay, and reducing resource utilization

Active Publication Date: 2018-07-06
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

It should be noted that the existence of these redundant VNFs will increase the length of the service function chain, thereby increasing the end-to-end delay of the service, which is very unfavorable for the delay-limited SFC, and reduces the utilization of resources

Method used

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  • Service function chaining dynamic deployment method based on QoS (Quality of Service) guarantee
  • Service function chaining dynamic deployment method based on QoS (Quality of Service) guarantee
  • Service function chaining dynamic deployment method based on QoS (Quality of Service) guarantee

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Embodiment Construction

[0037] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] figure 1 is a schematic diagram of a scene example where the embodiment of the present invention can be applied. Consider a network functions virtualization architecture composed of NFV orchestration and control frameworks. figure 1 The left side of the represents the orchestration and management functions of the system, which consists of a management and orchestrator (management and orchestrator, MANO) and a software defined network (software defined network, SDN) controller. Among them, MANO includes three parts: business orchestration, virtual network function management, and virtualized infrastructure management, which are respectively responsible for the management of SFC service requests, VNF connections, and global infrastructure resources on the right side of the figure. The infrastructure of the underlying network (physica...

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Abstract

The invention relates to a service function chaining dynamic deployment method based on QoS (Quality of Service) guarantee and belongs to the technical field of mobile communication. According to themethod, on the basis of 5G network slicing, resources are flexibly configured through utilization of a software defined network and a network function virtualization technology. In order to improve the QoS of communication business in slice networks, a reliability requirement oriented service function chaining deployment model is established. According to the model, a service function chaining dynamic deployment scheme based on the QoS guarantee is designed with the purpose of minimizing the end-to-end delay. According to the scheme, node positions and reliability are taken into comprehensiveconsideration; virtual network functions are deployed through utilization of a novel node arrangement method, and the load of the networks is balanced. In a chaining mapping process, the QoS is improved through selection of the delay shortest path which satisfies a reliability requirement. According to the method, the end-to-end delay of the service function chaining is reduced, the deployment reliability is ensured, and a request acceptance rate and a resource utilization rate are improved.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and relates to a dynamic deployment method of a service function chain based on QoS guarantee. Background technique [0002] At present, the mobile network industry is rapidly evolving to 5G, and the three new application fields of "mobile broadband enhancement", "large-scale Internet of Things", and "low latency and high reliability communication" will play an important role. The 5G network has high flexibility to cope with the business changes of mobile operators, especially the concept of network function virtualization enables the infrastructure to flexibly meet the diversification of vertical application requirements. Network slicing is a technology for flexible configuration of resources in wireless virtual networks, which can be quickly deployed and managed centrally. It mainly uses software defined network (software defined network, SDN) and network function virtualization (...

Claims

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Application Information

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IPC IPC(8): H04W28/24H04L12/727H04L12/24H04W28/08H04L45/121
CPCH04L41/5022H04L41/5051H04L45/121H04W28/24H04W28/08
Inventor 唐伦赵培培周钰杨友超马润琳陈前斌
Owner CHONGQING UNIV OF POSTS & TELECOMM
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