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Method for multicast source control on access device

A technology for accessing equipment and control groups, which is applied in the branch office to provide special service devices, digital transmission systems, data exchange networks, etc., and can solve problems such as lack of multicast source control

Active Publication Date: 2007-05-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] However, the above process lacks control over the multicast source, that is, if other users in Figure 1 privately send 224.1.1.1 and other multicast streams, pc1 may also receive them. With the development of multimedia services by operators, Controllable and manageable multicast is very necessary

Method used

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  • Method for multicast source control on access device
  • Method for multicast source control on access device
  • Method for multicast source control on access device

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Embodiment Construction

[0036] The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments.

[0037] As shown in FIG. 2 , assuming that the access device 130 has only three ports: port 1, port 2, and port 3, wherein port 1 is connected to pc1 (such as a personal computer 110), and port 2 is connected to pc2 (such as a personal computer 120). Port 3 is connected to an upper layer network device (streaming media server 140, etc.). The process of controlling the source port of the multicast stream is as follows:

[0038] Through the configuration on the access device 130, port 3 is set as the source port of all multicast groups. When there are multiple ports on the access device, the multiple ports can be set as source ports of the multicast group, and the source ports are connected to upper-layer network devices such as the streaming media server 140 through the network.

[0039] When pc1 (for example, personal computer 110) appli...

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PUM

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Abstract

The invention relates to a method for controlling multicast source on access device, wherein said method comprises that: 1, at least one user sends multicast request to the access device, to request accessing into the multicast group of program; 2, access device informs superior network device about the multicast request, and receives the data sent from superior network device, to be transferred to user; when the access device receives the data of multicast group, judges if the data is requested to access by user; if it is, transferring the data to user, or else, losing said data. The invention can user obtaining the user access information of multicast group on access device, via sending multicast inquire report; and the access device will not transfer the multicast flow sent by user privately; and the access device will not transfer the multicast flow not requested by user.

Description

technical field [0001] The invention relates to the field of multicast network technology, in particular to a method for controlling a multicast source on a device. Background technique [0002] Compared with broadcast and unicast, multicast is point-to-multipoint delivery or multipoint-to-multipoint delivery. The difference between multicast and unicast is that when a host uses unicast protocol to send the same data to n hosts, the sending host needs to send to n hosts respectively, and send n times in total. When a host uses the multicast protocol to send the same data to n hosts, it only needs to send once, and the data will be copied by routers and switches in the network. This can save the system resources and bandwidth of the host sending the data, and can also selectively copy to the host that requires it. Broadcasting can only be broadcast within a local area network or a dedicated broadcasting network. [0003] Because multicast has the above-mentioned advantages...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/18H04L47/32
Inventor 田平钱浩洋姚义
Owner ZTE CORP
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