Group broadcast realization in IP telecommunication network system
A technology of telecommunication network and IP network, applied in the direction of transmission system, electrical components, data exchange through path configuration, etc., can solve the problem that multicast technology cannot be directly applied
Inactive Publication Date: 2009-12-02
信息产业部电信研究院 +1
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The system structure of this IP telecommunication network system is very different from the existing IP network based on the Internet design concept. Therefore, the existing multicast technology cannot be directly applied to the IP telecommunication network system, and must be combined with the IP telecommunication network system. To improve the multicast capability and meet the needs of business development
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[0039] figure 1 It is an explanation of the IP telecommunication network system on which the present invention depends. The IP telecommunication network system includes at least one multiple-address connectionless data network (hereinafter referred to as NCT data network), multiple IP networks, and multiple edge gateway devices ED. The IP network mentioned here includes but is not limited to IP metropolitan area network, access network or user premises network, which is connected to the NCT data network through the edge gateway device ED; each NCT data network also includes at least one address mapping device ADT ; All devices in the NCT data network and the edge gateway device are assigned an NCT data network address, all devices in the IP network and the edge gateway device ED are assigned an IP address, and the mapping relationship between the IP address and the NCT data network address It is stored in the address mapping table in the address mapping device ADT; the edge gate...
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A method for implementing multicast in an IP telecommunication network system, which is used to implement multicast initiated by a user applying to a network management device. The IP telecommunication network system includes at least one multiplexed connectionless data network, multiple IP networks, and multiple edge gateway devices. The multiplexed connectionless data network has at least one address mapping device, and the packets in the IP network use IP addresses. The grouping in the relocation connectionless data network adopts the relocation connectionless data network address, and the multicast realization includes (1) multicast application; (2) multicast tree establishment; (3) multicast communication; (4) multicast Finalize four steps. In the multicast implementation process, the user applies to the network management to establish a multicast, the network management instructs to reset the connectionless data network node equipment to configure resources, and the network management instructs the address mapping device to establish a multicast association table and build a multicast tree. The method lays a technical foundation for realizing the multicast service in the IP telecommunication network system.
Description
Technical field [0001] The invention relates to a method for realizing multicast in an IP telecommunication network system, in particular to a method for realizing multicast initiation by a user applying to a network manager, and belongs to the field of communication technology. Background technique [0002] Multicast refers to the delivery of the same message to more than one destination. In the IP network, the use of multicast technology can achieve efficient data transmission from one point to multiple points in the IP network. Because it can effectively save network bandwidth and reduce network load, IP multicast technology has broad application prospects in real-time data transmission, multimedia conferences, data copying, games, and simulation. [0003] In the multicast technology of the IP network, packets are sent to a certain subset of nodes in the network. This subset is called a multicast group, which is identified by a single IP address. This address is called a multi...
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IPC IPC(8): H04L29/02H04L12/28
Inventor 蒋林涛胡筑华马玉发刘文红蒋林蔚王英
Owner 信息产业部电信研究院