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A Consistent Update Method for Software-Defined Vehicular Network Forwarding Policy

A forwarding strategy and vehicle-mounted network technology, applied in the field of vehicle-mounted networks, can solve problems such as loop forwarding disconnection, data packets cannot be forwarded to the destination smoothly, and achieve the effect of improving efficiency and solving update inconsistencies

Active Publication Date: 2020-03-13
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the forwarding strategy is not static. The location of the vehicle changes all the time, and the change of the forwarding destination vehicle may require updating the forwarding strategy of each vehicle. If the strategy is simply updated for each vehicle, it will cause a forwarding loop (Loop ), forwarding circuit breaks and other consistency issues, that is, data packets cannot be forwarded to the destination smoothly

Method used

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  • A Consistent Update Method for Software-Defined Vehicular Network Forwarding Policy

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Embodiment Construction

[0025] The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art For personnel, it is understandable that some known structures and their descriptions in the accompanying drawings may be omitted; in order to better understand the patent of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and examples.

[0026] Specific embodiments of the present invention are described below:

[0027] A method for consistent updating of forwarding policies in software-defined vehicle-mounted networks. The specific steps are as follows: figure 1 Shown:

[0028] S1. Register the vehicles that enter the coverage area of ​​th...

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Abstract

The invention relates to a software defined on-board network forwarding strategy consistency updating method. A controller is used to issue a forwarding strategy to a vehicle set used for transmitting messages. When the forwarding strategy is required to be updated, the controller is used to update the forwarding strategy of every vehicle in a data forwarding link by using a software defined network consistency algorithm, and therefore a problem of inconsistent forwarding strategies is solved effectively, and therefore data packet transceiving efficiency is improved at the same time.

Description

technical field [0001] The present invention relates to the technical field of vehicular networks, and more specifically, to a method for updating consistency of forwarding policies of software-defined vehicular networks. Background technique [0002] The biggest difference between the vehicular network and the traditional network is that the forwarding nodes of the vehicular network are vehicles, and the network topology is composed of vehicles, so the forwarding nodes change all the time, and the network topology map changes all the time. On the other hand, the forwarding node of a traditional network is a router, and the position of the router is fixed after installation and deployment. In order to better manage the forwarding and receiving of messages, the centralized idea of ​​SDN can be used to perform calculations and deliver forwarding policies on the controller side in a unified manner, so as to overcome the large overhead caused by the original distributed network ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/24H04L12/755
CPCH04L45/021H04W40/248
Inventor 李俊杰吴维刚周萌
Owner SUN YAT SEN UNIV
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