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SDN controller and multicast control method

A control method and controller technology, applied in the field of network communication, can solve problems such as difficulties in multicast management of a large number of terminals, and achieve the effects of unified configuration, simple configuration, and improved performance

Active Publication Date: 2015-04-01
HARBIN YULONG AUTOMATION
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  • Description
  • Claims
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Problems solved by technology

[0005] In view of the above-mentioned shortcoming of prior art, the object of the present invention is to provide a kind of SDN controller and multicast control method, solve the difficult problem of EPON network to a large number of terminal multicast management in the prior art

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  • SDN controller and multicast control method

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Embodiment Construction

[0031] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] Such as figure 1 As shown, the present invention provides a kind of SDN controller, is applied in the PON network that comprises OLT and connected ONU (Optical Network Unit, optical network terminal), and described ONU access has client, such as set-top box or other...

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Abstract

The invention provides an SDN controller and a multicast control method. The SDN controller is applied to a PON network comprising an OLT and an ONU connected with the OLT, and the ONU accesses client terminals. The application program of an access permission is preset corresponding to each client terminal. The invention provides a multicast permission control table which comprises a multicast key field and an access permission field corresponding to the access permission. According to the multicast permission control table, a matching field corresponding to the multicast key field and an action type of flow table corresponding to the access permission field are generated and sent to the OLT to inform each client terminal of the access permission on each application and the corresponding action. The original controllable multicast function of the OLT is migrated to the side of the SDN controller, the Openflow flow table is expanded, the controllable multicast configuration of the whole PON system is relatively unified and simple, and the performance is greatly improved.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an SDN controller and a multicast control method. Background technique [0002] The traditional controllable multicast function is implemented with an OLT (optical line terminal, a terminal device used to connect to an optical fiber trunk line.). OLT shall maintain user multicast service authority control table to realize centralized control and management of user multicast. The user multicast service authority control table is the core of controllable multicast, and it is generally realized by software. Once a large number of clients (such as set-top boxes) apply for different multicast (Multicast) channels, the reading and writing of user multicast service authority control tables will become the bottleneck of SDN controllable multicast, resulting in service processing delays and other problems. Since the user multicast service authority control table is distrib...

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Application Information

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IPC IPC(8): H04L12/18H04L29/06H04L29/12
Inventor 翟跃
Owner HARBIN YULONG AUTOMATION
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