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IP (Internet Protocol) multicasting signal method of OTN (Optical Transport Network) broadcast

A technology of IP multicasting and network broadcasting, which is applied in the direction of data exchange network, selection device of multiplexing system, digital transmission system, etc. It can solve the problem that the two-way network is not suitable for some services of the broadcasting and television system, and achieve saving network investment costs , Troubleshooting is simple and practical

Active Publication Date: 2013-08-28
GUANGXI RADIO & TV NETWORK
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for broadcasting IP multicast signals on an OTN network, which overcomes the defect that the existing two-way network function is not suitable for some services of the radio and television system

Method used

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  • IP (Internet Protocol) multicasting signal method of OTN (Optical Transport Network) broadcast
  • IP (Internet Protocol) multicasting signal method of OTN (Optical Transport Network) broadcast
  • IP (Internet Protocol) multicasting signal method of OTN (Optical Transport Network) broadcast

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Embodiment Construction

[0026] The technical solution of the present invention will be further described in detail according to the drawings and examples below.

[0027] like image 3 As shown, the networking structure is that a central multicast source switch is set up at the central node, and only a single-fiber IP multicast signal is output from the SFP module. The signal is divided into two channels through the electrical cross-connection capability of the OTN network. One channel is the signal from OTN equipment A to OTN equipment B station. At the same time, the other channel crosses through to the next OTN equipment C; the other routes the signal from OTN equipment A to OTN equipment D. After the signal reaches OTN equipment D, OTN equipment D divides the signal Lower-level service switching 3, and another channel crosses through to the next OTN device C, and passes the signal back to the OTN device A of the central node, OTN device A→OTN device B→OTN device C→OTN device D and OTN device A→OT...

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Abstract

The invention relates to an IP (Internet Protocol) multicasting signal method of OTN (Optical Transport Network) broadcast. The method comprises the following steps that a central multicasting source exchanger is erected on a central node, and received superior IP data source information is sent out in an IP multicasting streaming mode; a sending port of the central multicasting source exchanger SFP (Small Form-factor Pluggables) is forcibly activated, so that an IP multicasting streaming optical signal is input into an access of OTN equipment of the OTN central node; the IP multicasting streaming optical signal is sent to the OTN equipment of each subsite in a cycle; a business OUT optical port of the OTN equipment of each subsite is butted with an IN port of an inferior business exchanger SFP module; the IP data source information is broadcasted to an inferior business exchanger by the inferior business exchanger; and the IP data source information is visited by terminal equipment through the inferior business exchanger. By using the method, the OTN channel utilization rate can be increased, the equipment cost and line resources are saved, and the method has the advantages of high stability and safety and strong practicability, and is an OTN innovation application.

Description

technical field [0001] The invention relates to a method for realizing a two-way data transmission mode by using one-way broadcasting, in particular to a method for broadcasting an IP multicast signal on an OTN network. Background technique [0002] With the vigorous development of video, data services, and large-grain private lines, higher requirements are placed on line bandwidth. The SDH backbone network with a traditional 10G bandwidth capacity is gradually weakening in the face of diversified and high-bandwidth services. , most operators have built their own OTN trunk transmission network to meet the increasing business needs of expansion. [0003] With the improvement of the integration of IP equipment, the increase of bandwidth, and the diversification of transmission equipment support, digital TV transmission IP brings highly intensive equipment, high concentration of information, and flexible business scheduling. It is a trend in the development of digital televisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/761H04Q11/00H04L45/16
Inventor 张伟华赵冠臣吴润宗徐洪亮朱莹德杨京蔡坤于浩高欣谈毅谭俊光刘荣毅刘志东王沛
Owner GUANGXI RADIO & TV NETWORK
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