Data processing method supporting time triggering mechanism and SDN network system

A time-triggered and data processing technology, applied in the field of communication networks, can solve the problems of not meeting the strict requirements of delay and jitter, not forming a real-time SDN system, and immature development of SDN, so as to achieve the effect of meeting the needs of real-time transmission.

Active Publication Date: 2019-12-31
TSINGHUA UNIV
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Problems solved by technology

[0004] To sum up, the SDN system can effectively improve the flexibility of industrial networks, but it does not meet the strict requirements of industrial network application scenarios for network transmission delay, jitter and other indicators. The development of real-time SDN is not yet mature, and there is currently no Formed real-time SDN system

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  • Data processing method supporting time triggering mechanism and SDN network system
  • Data processing method supporting time triggering mechanism and SDN network system
  • Data processing method supporting time triggering mechanism and SDN network system

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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only some of the embodiments of the present specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of this specification.

[0027] The software-defined network has innovated the structure of the traditional network system, separated the network control function and the data forwarding function, directly controlled the network through the programmable software controller, and re-divided the network system into general forwarding hardware, software-defined network function and open source network Apply three elements to establish a unified and open port between each element...

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Abstract

The invention discloses a data processing method supporting a time triggering mechanism and an SDN network system. According to the method, corresponding adaptation is achieved on a controller and a switch. When the method is executed on a controller, the method comprises: according to the requirement for real-time transmission in a network, generating a current scheduling table of a target switchin the network through a scheduling table global calculation tool, and recording, by the current scheduling table, the forwarding moment and the forwarding destination port corresponding to a to-be-processed message; and sending the current scheduling table to a corresponding target switch to enable the target switch to store the current scheduling table, and forwarding the message according to the forwarding moment and the forwarding destination port in the current scheduling table. By adoption of the scheme provided by the invention, real-time characteristics can be introduced into an existing SDN system, so that characteristic configuration supporting time triggering can be transmitted between the controller and the switch.

Description

technical field [0001] This specification relates to the field of communication networks, and in particular, relates to a data processing method supporting a time trigger mechanism and an SDN network system. Background technique [0002] As a product of the deep integration of the new generation of information technology and manufacturing, the Industrial Internet is the key support for the new industrial revolution, and it puts forward higher requirements for industrial control networks. With the increase of terminal equipment, the flexibility, reliability and interoperability of industrial communication infrastructure need to be further upgraded. Integrating mature Internet information technology into the industrial architecture, the new architecture requires features such as support for openness, integration, collaboration, flexibility, and heterogeneity. [0003] Software-Defined Networking (SDN for short) is an emerging network structure. On the one hand, SDN separates...

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Application Information

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IPC IPC(8): H04L12/24H04L12/947H04L29/06
CPCH04L41/0803H04L49/25H04L69/06H04L69/26
Inventor 万海赵曦滨
Owner TSINGHUA UNIV
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