SDN (Software Defined Network) environment important node information acquisition method

Abstract

The invention discloses an SDN (Software Defined Network) environment important node information acquisition method. The method is used for selecting important nodes in a network so as to carry out key monitoring and key deployment on network services. The method includes the following steps that: related information of a forwarding plane and a network service program are collected; and the important degrees of forwarding nodes are subjected to quantitative analysis, and then, focused information acquisition can be performed on the network services. According to the method, selected parameters include the following four parts: 1) communication traffic; 2) network topology; 3) forwarding node liveness; and 4) network service information, wherein the network service information is indexes related to the evaluation of the urgent degree of the deployment of the services by the forwarding nodes and can be selected from indexes provided by specific network services according to the specific network services. With the method of the invention adopted, the information acquisition work of the network services is optimized, and the number of network service information acquisition nodes can be decreased, and excellent service effects can be obtained.

Description

technical field [0001] The invention relates to the field of network information processing, in particular to a method for collecting important node information in an SDN environment. Background technique [0002] Software Defined Networks (Software Defined Networks, SDN) is a new network architecture proposed by decoupling the data forwarding layer and the management layer in the traditional network. Because SDN provides a unified programming northbound interface for network management and developers, enabling it to conveniently manage the network and provide various new network services, this architecture has been widely used. For example, Google applies the SDN framework in its backbone network to improve device resource utilization; Amazon AWS provides large-scale elastic computing cloud services through the SDN architecture. [0003] In the SDN architecture, the controller, as the core component, not only provides the data forwarding flow table for the lower-layer forw...

AI Technical Summary

Problems solved by technology

Existing researches on the controller work optimization problem are all carried out for specific problems, which makes the scalability of the research results very limited, and lacks the algorithm research with high scalability.

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