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A method and system for implementing a content distribution network based on software-defined networking

A software-defined network and content distribution network technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve the problems of closed hardware specificity and management complexity of bearer networks

Active Publication Date: 2019-11-19
ZTE CORP
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Problems solved by technology

[0010] In order to solve the above-mentioned problems, the present invention provides a method and system for implementing CDN based on SDN, which can effectively solve the problems faced by CDNs such as the closedness of the bearer network, the specificity of hardware, and the complexity of management

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  • A method and system for implementing a content distribution network based on software-defined networking
  • A method and system for implementing a content distribution network based on software-defined networking

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Embodiment Construction

[0069] In order to make the purpose, technical solution and advantages of the application clearer, the embodiments of the application will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0070] figure 1 It is a flow chart of the method for implementing CDN based on SDN in the present invention, such as figure 1 shown, including:

[0071] Add CDN application functions at the SDN application layer; add CDN control functions at the SDN control layer; add CDN network entity resources at the SDN data forwarding layer.

[0072] It should be noted that in the solution based on SDN and NFV, adding network entity resources at the data forwarding layer can specifically add new hardware resources of the X86 general architecture and perform network programming based on the general ha...

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Abstract

This application discloses a method and system for realizing CDN based on SDN, including: respectively adding CDN application functions, control functions and network entity resources at the application layer, control layer and data forwarding layer of SDN; including: receiving a CDN application application When , the SDN application layer generates resource requirements and business orchestration information according to the CDN application application, so as to send the reservation application for the resources required by the CDN application to the SDN control layer, so that the SDN control layer can allocate the resources required by the CDN application, combined with network load balancing and The path policy generates the content routing table for data transmission, and then generates the L2 / L3 forwarding table, which is sent to the SDN data forwarding layer; when the SDN data forwarding layer receives the content distribution / delivery operation request, it executes the CDN business according to the L2 / L3 forwarding table related operations. The present invention realizes the system function of CDN based on SDN, effectively solves the complex problems of closed bearer network, exclusive hardware, and management faced by CDN, and realizes reasonable selection of CDN application network resources, engines, and forwarding paths.

Description

technical field [0001] The present application relates to content distribution technology, especially a method and system for implementing a content distribution network (CDN) based on a software-defined network (SDN) in a tightly coupled mode. Background technique [0002] SDN is a new network technology that has emerged in recent years. Its main features are separation of control and forwarding, open and programmable network, and separation of software and hardware. SDN enables traditional communication network equipment to be liberated from exclusive hardware binding, develop towards a general hardware platform plus custom software, and realize network function virtualization, network management simplification, and network deployment automation through open programming interfaces , thus greatly saving equipment cost, labor cost and deployment time compared with traditional network function realization and engineering implementation. Divided by architecture level, SDN is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/803H04L45/42H04L45/74H04L47/30H04L47/20H04L47/80
CPCH04L47/125H04L47/20H04L47/72H04L47/803H04L45/74591H04L47/83H04L41/0893H04L45/54H04L47/30
Inventor 王东
Owner ZTE CORP
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