Multicast data transmission method and device

A technology of multicast data and transmission method, applied in the field of communication, can solve the problems of router specification limitation, compatibility, and the inability of BIDIRPIM protocol to be widely used, and achieve the effect of smooth connection and flexible deployment

Active Publication Date: 2011-04-20
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] It can be seen that BIDIR PIM is a relatively new multicast routing protocol and has a good application prospect. However, when deploying the BIDIR PIM protocol, all routers in the network are required to support the BIDIR PIM protocol, which leads to the application of the BIDIR PIM protocol. The range is very limited
In actual use, some routers can only supp

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  • Multicast data transmission method and device
  • Multicast data transmission method and device
  • Multicast data transmission method and device

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Embodiment Construction

[0049] The core idea of ​​the present invention is to realize the smooth docking of BIDIR PIM and PIM SM by implementing BIDIR PIM Relay technology on the RP device supporting PIM SM, without requiring all devices in the PIM SM domain to support the BIDIR PIM protocol, thereby finally realizing The flexible deployment of BIDIR PIM and PIM SM makes the BIDIR PIM protocol widely used.

[0050] The transmission method of a kind of multicast data that the present invention proposes is applied in the multicast network that comprises BIDIR PIM domain and PIM SM domain, and needs to carry out the transmission of multicast data between described BIDIR PIM domain and PIM SM domain, in The multicast network includes a multicast source, a receiver, a BIDIR PIM Relay, and an RP in the BIDIR PIM domain, wherein the BIDIR PIM Relay is an RP in the PIM SM domain, and the BIDIR PIM Relay is connected to the BIDIR PIM Relay Device connections in the BIDIR PIM domain described above, such as ...

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Abstract

The invention discloses a multicast data transmission method, which comprises that: a bidirectional protocol independent multicast (BIDIR PIM) Relay receives multicast information from a protocol independent multicast sparse mode (PIM SM) domain; the BIDIR PIM Relay sends the multicast information to equipment connected with the BIDIR PIM Relay in a BIDIR PIM domain according to pre-established neighbourship, wherein the neighbourship is the neighbourship between the BIDIR PIM Relay and the equipment in the BIDIR PIM domain; and the equipment in the BIDIR PIM domain sends the multicast information to an RP in the BIDIR PIM domain, and the RP in the BIDIR PIM domain completes the multicast data transmission process according to the multicast information. In the method, the flexible layout of the BIDIR PIM and the PIM SM is realized, and a BIDIR PIM protocol is widely applied.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for transmitting multicast data. Background technique [0002] With the development of network services such as IPTV (Internet Protocol Television, interactive network television) and video conferencing, multicast services are more and more widely used on the network. As a communication method parallel to unicast and broadcast, multicast technology can It effectively solves the problem of single-point transmission and multi-point reception, thereby realizing efficient data transmission from point to multipoint in the network, saving a large amount of network bandwidth and reducing network load. Use multicast technology to conveniently provide new value-added services, including online live broadcast, Internet TV, distance education, telemedicine, Internet radio, real-time video conferencing and other information services that require high real-time band...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L29/06H04L12/56
Inventor 游君平
Owner NEW H3C TECH CO LTD
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