Real-time data distribution system and method based on Openflow protocol

An openflow protocol and real-time data technology, applied in the network field, can solve problems such as network performance difficulties, and achieve the effects of flexible network resource configuration, efficient and flexible configuration, and improved utilization.

Inactive Publication Date: 2017-02-15
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Current methods either address application dynamics or focus on network resource utilization, and are all based on static dedicated networks or overlay networks, which makes it difficult to set network performance on demand

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  • Real-time data distribution system and method based on Openflow protocol
  • Real-time data distribution system and method based on Openflow protocol
  • Real-time data distribution system and method based on Openflow protocol

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] The present invention proposes a real-time data distribution system and method based on the Openflow protocol for distributed real-time applications. The system combines data distribution services and a software-defined network framework. The system structure is as follows figure 1 shown. The system mainly includes underlying network equipment, DDS interface API (also known as southbound interface), controller, DDS agent, northbound interface and application services. Among them, the DDS agent, DDS interface API and routing agent in the underlying network device are the components of the DDS system, and the northbound interface, controller, southbound interface, OF switch and Openflow protocol are the components of the software-defined network. The SDN in this system supports the Openflow protocol, and realizes data storage and forward...

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Abstract

The invention provides a real-time data distribution system and method based on an Openflow protocol. A communication framework proposed by the invention combines a DDS and an SDN to support efficient dynamic distributed application. The system mainly includes an underlying network device, a DDS interface API, a controller, a DDS agent, a northbound interface and an application service. The DDS agent, the DDS interface API, and a routing agent in the underlying network device are components of the DDS system. The northbound interface, the controller, a southbound interface, an OF switch, and the Openflow protocol are components of the software defined network. The SDN brings flexibility to the network and provides the set of on-demand dynamic communication network service quality. The invention distributes a corresponding flow table for a device in a data forwarding plane by using a Meter table mechanism achieving a QoS function in the Openflow protocol, allocates the network resources collectively and improves the utilization rate of the whole network.

Description

technical field [0001] The present invention relates to the field of network technology, more specifically to a real-time data distribution system and method based on the Openflow protocol. Background technique [0002] With the rapid development of control, communication, computer and other technologies, the architecture of various application systems presents a network-centric trend, which puts forward higher requirements for real-time, dynamic and flexible communication networks. At the same time, it is hoped that each participant in the system has a loosely coupled relationship, and QoS requests also need to support flexible interaction mechanisms and communication modes. Existing publish / subscribe systems can provide loosely coupled communication patterns, but lack proper system control and application-level QoS support. Therefore, there is an urgent need for a system based on the publish / subscribe model that can effectively and reasonably control the QoS parameters re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/10H04L67/60
Inventor 曾鹏李栋刘金娣李志博俞雪婷杨明
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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