Source controllable multicast data transmission method and system thereof under SDN Environment

A multicast data and transmission system technology, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the waste of link bandwidth, multicast technology is difficult to achieve complete controllability and security, and network data flow control is not enough Flexibility and other issues to achieve the effect of improving data transmission efficiency, reasonable management, flexible and secure data transmission

Active Publication Date: 2015-10-14
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

In traditional networks, in order to improve data transmission efficiency, multicast technology is used in application scenarios where multiple data receivers exist, such as multimedia applications and group video services. It is difficult for broadcasting technology to meet the requirements of complete controllability and security
And in the distributed multi-copy storage scenario of the data center, file

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  • Source controllable multicast data transmission method and system thereof under SDN Environment
  • Source controllable multicast data transmission method and system thereof under SDN Environment
  • Source controllable multicast data transmission method and system thereof under SDN Environment

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0025] The technical scheme of the present invention is: the receiving end sends its own IP, MAC and network port information to the controller; the sending end first notifies the controller of its destination host set, the controller generates a destination multicast IP, and configures the SDN network device flow table forwarding rules, generate a reasonable data forwarding spanning tree, and n...

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Abstract

The present invention discloses a source controllable multicast data transmission method and a system under SDN Environment. The method comprises: a sender performs data transmission and autonomously appoints the collection of receiver host machines, in order to more flexibly control data transmission and improve data receiving safety; a controller finishes data control service and controls data transfer path generation, data transmission and other processes in a centralized manner based on a global view of network topology; the receiver finishes data receiving operation, differs from a multicast member program in the conventional network, needs no frequent communication with a network intermediate device to only have simple communication with the controller up to two times and wait or receive data in other time, so that data processing pressure of the network equipment is reduced, and link bandwidth is saved. The invention further provides a system realizing the above method. The source controllable features of the method and the system allows data transmission control capability to be improved, and allows data transmission efficiency to be developed due to data transmission based on SDN network.

Description

technical field [0001] The invention belongs to the technical field of data transmission of innovative networks, and more specifically relates to a source-end controllable multicast data transmission method and system in an SDN environment. Background technique [0002] Software Defined Network (Software Defined Network, hereinafter referred to as SDN) is an innovative network architecture. OpenFlow is a technical method to realize SDN. Transmission schemes and applications provide a good platform. [0003] SDN-based OpenFlow implementation technology includes at least three parts: OpenFlow switch, controller and OpenFlow protocol. Among them, the OpenFlow switch stores a flow table, which is composed of multiple flow table items, and each flow table item corresponds to a data forwarding rule; the controller completes all data control logic in the network. There are many open-source controllers, such as pox written in python, ryu, and floodlight written in Java. The contro...

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Application Information

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IPC IPC(8): H04L12/761H04L12/801H04L45/16
CPCH04L47/10H04L49/201
Inventor 王芳冯丹史庆宇朱挺炜万勇
Owner HUAZHONG UNIV OF SCI & TECH
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