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A service-aware software-defined backhaul network routing method

A software-defined network and backhaul network technology, applied in the field of service-aware software-defined backhaul network routing, can solve problems such as lack of flexibility and scalability, and achieve feasibility and practicability, reasonable path planning, and network routing. The effect of cost optimization

Active Publication Date: 2018-12-18
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The traditional network architecture lacks flexibility and scalability, and has certain limitations in meeting the requirements of service integration and user experience

Method used

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  • A service-aware software-defined backhaul network routing method
  • A service-aware software-defined backhaul network routing method
  • A service-aware software-defined backhaul network routing method

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0024] The designer of the present invention combines the concept of SDN with service perception, and realizes that the service flow in the network can be measured and analyzed, and the routing of the service flow can be controlled to achieve performance goals, such as minimum overhead or load balancing, etc. When routing, select a path that is more in line with business requirements to achieve efficient forwarding and flexible path settings.

[0025] From the scheme outlined in the present invention, the SDN controller obtains the status information of nodes and links in the software-defined backhaul network; according to the characteristics of each service in the network flow at the edge node, after the network flow enters the software-defined backhaul network, it is controlled by the SDN The router sends the flow table of the data plane, and the...

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Abstract

The invention relates to a service-aware software-defined backhaul network routing method, characterized in that: with software-defined network controller as the core, the state information of the nodes and links in the software-defined backhaul network is obtained, and the flow is split into several service flows according to the characteristics of each service at the edge nodes; the software-defined network controller calculates the service flow routing path with the minimum total routing cost while measuring and analyzing the service flow parameter requirements. The method of the inventionconsiders the load of the network link and the network flow splitting and other constraints in the service-aware software-defined backhaul routing method, which not only can reasonably carry out pathplanning for the service flow, but also achieves good effect in routing overhead.

Description

technical field [0001] The present invention relates to the field of software-defined network (hereinafter referred to as SDN) routing, and specifically relates to a software-defined backhaul network routing method based on service awareness in a scenario where network service parameter requirements are considered. Background technique [0002] With the continuous development of information technology, the diversification of terminal services and the intensive network deployment bring new challenges to network research. The sensitivity of services to parameters such as delay or packet loss in different application scenarios is different. It is of great significance to study routing strategies from the perspective of service characteristics. The traditional network architecture lacks flexibility and scalability, and has certain limitations in meeting the requirements of service integration and user experience. Therefore, Software-Defined Networking (Software-Defined Network,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L12/803H04L12/851
CPCH04L45/38H04L47/125H04L47/24H04L47/2441
Inventor 刘旭朱雯慧赵学健朱晓荣杨龙祥朱洪波
Owner NANJING UNIV OF POSTS & TELECOMM
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