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Controller deployment method and system in SDN network, and route computing method and system in SDN network

A path calculation and controller technology, applied in the transmission system, digital transmission system, data exchange network, etc., can solve the problem of large amount of calculation, etc., and achieve the effect of improving adaptability, ensuring adaptability, and effective deployment

Inactive Publication Date: 2016-11-09
NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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Problems solved by technology

[0007] Aiming at the technical problem of large amount of calculation in the path calculation method in the prior art, the present invention provides a method for deploying a controller in an SDN network, a method for calculating a path, and a system thereof

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  • Controller deployment method and system in SDN network, and route computing method and system in SDN network
  • Controller deployment method and system in SDN network, and route computing method and system in SDN network
  • Controller deployment method and system in SDN network, and route computing method and system in SDN network

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Embodiment Construction

[0020] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] In an embodiment of the present invention, the environment is a wide-area large-scale environment.

[0022] A controller deployment method in an SDN network in a wide-area large-scale environment. In terms of controller deployment, controllers are classified according to the control scope and control authority of the SDN controller, which can be divided into multiple levels. The lowest-level SDN controller is responsible for The SDN switch is directly controlled, and the upper-level SDN controller is responsible for direct control of the lower-level SDN controller; device for direct control.

[0023] Furthermore, after completing the deployment of the SDN controller in the above-mentioned wide-area environment, a distributed processing method for path calculation based on a divide-and-conquer strategy is adopted, and the...

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Abstract

The invention relates to route computing in an SDN network. The invention discloses a controller deployment method in the SDN network. The method comprises the steps of dividing at least three SDN controllers into at least two levels according to control ranges of SDN controllers, wherein the lowest-level SDN controllers are responsible for directly controlling SDN switches, and the upper-level SDN controllers are responsible for controlling the lower-level SDN controllers; dividing the SDN switches into domains with the number of the lowest-level SDN controllers, wherein the domains are controlled by the corresponding lowest-level SDN controllers; and abstracting networks directly controlled by the lower-level SDN controllers into virtual networks composed of virtual switches, wherein the virtual networks are controlled by the upper-level SDN controllers of the lower-level SDN controllers. Through leveled control of the controllers, the first-level controllers only need to control the virtual networks composed of the next-level controllers; and therefore, the computing load of the SDN controllers in the system can be effectively reduced. The invention also discloses a controller route computing method in the SDN network, a controller employment system and a route computing system.

Description

technical field [0001] The present invention relates to the technical field of SDN network, in particular to a kind of controller deployment in SDN network [0002] Method, path calculation method and system thereof. Background technique [0003] Software-defined networking (SDN) technology is a new network architecture that breaks the traditional network organization and application mode, and has the characteristics of logical centralization, separation of control and forwarding, open interface, and software definition. SDN technology enables the data plane of the network to focus on service data forwarding, thereby effectively improving the forwarding performance of the network. Since SDN is a logically centralized network architecture, it is usually required that the path calculation work of the entire network be concentrated on a unique logical node of the entire network to achieve centralized control of network resources. [0004] At present, the means to achieve cent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/721H04L12/803
CPCH04L41/12H04L41/145H04L45/44H04L47/125
Inventor 李默嘉曾浩洋田永春姜永广邓伟华王新
Owner NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP
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