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Method and apparatus for software defining satellite networking based on OpenFlow extended protocol

A software-defined and extended protocol technology, applied in electrical components, network topology, wireless communication, etc., can solve the problems of large satellite network occupation, large delay, lack of satellite network scalability, etc., to reduce the overhead of additional resources, The effect of simplifying communication protocol exchange and fast and efficient transmission

Active Publication Date: 2016-10-26
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the distributed nature of the communication protocol and the inability of the heterogeneous satellite network to operate collaboratively, it cannot reflect the dynamic changes in the topology of the satellite network in a timely manner. The delay in establishing a communication link in the satellite is relatively large, and the scalability of the satellite network is lacking. The satellite network takes up a lot of extra overhead, communication and information processing are easily affected by the environment, and the reliability of the dynamic networking of the satellite network is relatively low, so it is difficult to carry out joint resource optimization of the satellite network

Method used

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  • Method and apparatus for software defining satellite networking based on OpenFlow extended protocol
  • Method and apparatus for software defining satellite networking based on OpenFlow extended protocol
  • Method and apparatus for software defining satellite networking based on OpenFlow extended protocol

Examples

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Embodiment 1

[0086] In this embodiment, the software-defined satellite networking method based on the OpenFlow extension protocol includes:

[0087] Establishment of software-defined satellite network: Based on the OpenFlow extension protocol, use the central controller to establish a software-defined satellite network, monitor the operation status of each satellite, monitor the link status of the satellite network, and the usage status of satellite resources;

[0088] Application of software-defined satellite network: The OpenFlow central controller receives application service requirements, determines the data service transmission path, and adapts the resource occupancy status of each satellite according to the operating status of each satellite, the link status of the satellite network, and the usage status of satellite resources , to complete the transmission of the data service.

[0089] In this embodiment, the application of the software-defined satellite network specifically include...

Embodiment 2

[0102] This embodiment This embodiment is based on the software-defined satellite networking method of the OpenFlow extension protocol. On the basis of Embodiment 1, the OpenFlow central controller includes active and backup center controllers based on the OpenFlow extension protocol, and the backup center The controller performs information exchange and backup of real-time data, control instructions, control protocols, and control flow tables with the main central controller through hot backup;

[0103] If the main controller fails or breaks down, the standby central controller will automatically turn on the hot backup function, quickly switch all the control satellite network information of the main controller to the standby central controller, and quickly replace the main central controller through the standby central controller .

Embodiment 3

[0105] This embodiment is based on the software-defined satellite networking system of the OpenFlow extension protocol, including:

[0106] The satellite network system includes a plurality of satellites, wherein each satellite has a programmable hardware module; the programmable hardware module is used to obtain the operating status, link status, and resource usage status of the satellite;

[0107] The OpenFlow central controller is used to receive application service requirements, determine the data service transmission path according to the operating status of each satellite, the link status of the satellite network, and the usage status of satellite resources, adapt the resource occupancy status of each satellite, and complete the data service transmission; the OpenFlow central controller includes the active and standby OpenFlow central controllers. The standby central controller backs up the information of the active central controller through hot backup. When the active c...

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Abstract

The invention relates to a method and apparatus for software defining satellite networking based on OpenFlow extended protocol. The invention is designed for addressing problems in software defining satellite networking and establishing end-to-end service data transmission applied to service requirement. According to the invention, the method and apparatus introduce programmable characteristics of satellite assembly, through software defining OpenFlow extended protocol mechanism of a network, is capable of intelligentization integrated communication transmission exchange, forms uniform control function, dynamic changes of a suitable invoking strategy, and enhanced satellite network task connection rapid responding speed, uses the programmable networking technology of the spatial satellite assembly, and increases flexibility of satellite network networking and reliable transmission rate.

Description

technical field [0001] The invention relates to a software-defined satellite networking method and device based on an OpenFlow extension protocol. Background technique [0002] With the development of technologies such as deep space exploration, satellite communication, satellite positioning and timing service, with the help of the characteristics of large coverage and effective tracking of targets of the satellite network system, by using multi-level full-spectrum bands to obtain communication information technology, accurate time and space positioning can be provided. For reference, establish a high-reliability satellite network system with multiple network fusion processing elements. However, the satellite network has problems such as complex network structure, lack of compatibility of communication protocols, various types of mission services, frequent switching of interstellar links, and frequent changes in topology structure. Traditional satellite networking technology...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W40/12H04W76/02H04W84/06
CPCH04W24/04H04W40/12H04W76/10H04W84/06
Inventor 陈伯文
Owner SUZHOU UNIV
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