Multicast management method and two-layer equipment

A technology of layer 2 equipment and management method, applied in the field of multicast management in the field of communication technology, and can solve problems such as waste of bandwidth resources

Active Publication Date: 2011-05-25
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] The purpose of the present invention is to provide a kind of multicast management and two-layer equipment, to solve the problem of the waste of bandwidth resources caused by the forw

Method used

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  • Multicast management method and two-layer equipment

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Embodiment Construction

[0048] In order to solve the problem of wasting bandwidth resources caused by the multicast flow forwarded from its router port in the existing IGMP Snooping multicast management technology, the embodiment of the present invention extends the IGMP Snooping protocol to a certain extent, so that the multicast flow is only sent to the required port forwarding.

[0049] Generally speaking, in the embodiment of the present invention, increase IGMP Snooping indication information in IGMP query message, when the switch that enables IGMP Snooping receives such IGMP query message, no longer set corresponding port as router port, but Set to "query port", the query port only forwards IGMP messages and does not forward multicast streams; when receiving IGMP report messages from this port, add this port to the outbound port of the corresponding multicast forwarding entry Forwarding of multicast streams.

[0050] Embodiments of the present invention will be described in detail below in con...

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Abstract

The invention discloses a multicast management method and two-layer equipment, which are applied to the two-layer equipment using Internet group management protocol (IGMP) snooping. The two-layer equipment is characterized in that an inquiry port list is set in an IGMP snooping list item on the two-layer equipment. The multicast management method comprises the following steps that: when the two-layer equipment receives IGMP inquiry messages, a port receiving the IGMP inquiry messages is set into an inquiry port; after the two-layer equipment receives the IGMP inquiry messages form the inquiry port, the inquiry port is added into an outlet port list in a corresponding multicast transmitting list item according to multicast addresses required to be added; and the two-layer equipment transmits the received IGMP messages according to the inquiry port and transmits received multicast flows according the multicast transmitting list item. When the multicast management method and the two-layer equipment provided by the invention are adopted, bandwidth resources in the multicast transmitting process are saved.

Description

technical field [0001] The invention relates to a multicast management technology in the technical field of communication, in particular to a multicast management method and a layer-2 device applied to a layer-2 network using the IGMP Snooping protocol. Background technique [0002] With the development of IP video surveillance technology, the deployment of IP video surveillance is becoming more and more extensive. The IP video surveillance network mainly consists of IPC (IP camera) or analog cameras, as well as encoders, hardware decoders, network transmission storage devices and management systems. composition. In the video monitoring system, the monitoring personnel can monitor the remote scene in real time through the video client, and can also play back and investigate the case through on-demand stored video files. However, since there are a large number of cameras or IPCs in the video surveillance network, if unicast is used for on-demand, bandwidth and equipment reso...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/18H04L45/16H04L45/74
Inventor 袁飞周迪顾雷雷陈乾业余剑声
Owner NEW H3C TECH CO LTD
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