Method for broadcasting IP multicast signal by using optical splitter

Abstract

The invention discloses a method for broadcasting an IP multicast signal by using an optical splitter. The method comprises the following steps: (1) arranging a central multicast source switch on a central node, configuring a multicast source address, and transmitting the received superior IP data source information in the form of IP multicast stream; (2) forcibly activating the transmitting port of a SPF of the central multicast source switch, and inputting an IP multicast stream optical signal into the IN port of the optical splitter; (3) splitting an input IP multicast stream optical signal into different paths of output ports, and accessing the SFP module receiving port of an inferior service switch; and (4) replacing an IGMP querier of the central multicast source switch by the generated IGMP querier of the inferior service switch, and broadcasting the IP data source information to the inferior service switch. The method has the advantages of simple networking structure, scheduling flexibility, high stability and security, high practicability and suitability for being expanded and applied to metropoliatan area single-direction IP data networks.

Description

technical field [0001] The invention relates to a method for realizing a two-way data transmission mode by using one-way broadcast, in particular to a method for an optical splitter to broadcast an IP multicast signal. Background technique [0002] The radio and television network system has become an important news media and an important tool for the people to obtain knowledge, culture and entertainment. It is one of the national information infrastructures with the highest household registration rate. Its characteristics determine that its own network transmission must be safe and secure. The operation and maintenance must have its particularity and sensitivity. [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...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for an optical splitter to broadcast IP multicast signals, realize the transmission that can only be completed by a two-way network in a one-way transmission mode, and overcome the defect that the existing two-way network function is not suitable for some services of the radio and television system

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