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Method and device for controlling multicast data flow

A technology of data flow and control group, which is applied in branch offices providing special services, data exchange details, data exchange network, etc. It can solve problems such as flooding of multicast data flow, and achieve the effect of improving control and protection and improving performance.

Inactive Publication Date: 2008-02-06
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0020] The purpose of the present invention is to provide a method and device for controlling multicast data flow, to solve the problem in the prior art that when there is no user in the multicast group, the multicast data flow arriving at the switching device will be flooded to the user interface question

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  • Method and device for controlling multicast data flow
  • Method and device for controlling multicast data flow
  • Method and device for controlling multicast data flow

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] The present invention further utilizes the multicast data stream to drive the formation of the multicast group membership table on the basis of the switching device generating the multicast group membership table when a user in the prior art joins the multicast group, and can realize multicast data After the stream reaches the switching device, even if there is no user in the multicast group at this time, the switching device still forms a multicast group membership table, and uses the multicast group membership table to prevent multicast packets from flooding in the LAN.

[0051] FIG. 6 is a schematic flowchart of a method for controlling a multicast data flow according to Embodiment 1 of the present invention. As shown in Figure 6, the meth...

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Abstract

The utiltiy model relates to a method and a device for controlling multicast data flow. The method includes the following steps: step one, when the data flow reaches the exchange device, the exchange device will judge whether the device itself has the group member relationship chart, if yes, the present invention will carry out the step two, if no, the present invention will carry out the step three; step two, the exchange device will transmit the data flow according to the terminal exit information of the group member relationship chart and stop the process; step three, the present invention will produce an invalid exit terminal or an empty group member relationship chart and will not transmit the data flow according to the exit terminal information of the group member relationship information. The present invention comprises an exchange device, The exchange device comprises a group manage mould to realize the control of the flood. The present invention can pervent multicast date flow of the exchange device flood spreading to customer port when the multicast group has no customer.

Description

technical field [0001] The invention relates to the technical field of multicast data flow control, in particular to a method and device for controlling multicast data flow. Background technique [0002] The Internet Group Management Protocol (IGMP, Internet Group Management Protocol) provides a necessary message mechanism for group membership maintenance between hosts and routers. [0003] When multicast hosts wish to join a specified multicast group and start receiving group messages, they send IGMP messages to notify the local multicast router. The router obtains the information of the host through IGMP, and maintains the multicast group membership table directly connected to the port on each port. The multicast host can also use some extended message mechanisms defined by Internet Group Management Protocol Version 2 (IGMPv2, Internet Group Management Protocol Version 2) to send messages to the local multicast router. The message is no longer of interest and wishes to l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/18H04L29/06H04L45/16
Inventor 高峰房海霞
Owner ZTE CORP