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A Realization Method of Accurately Forwarding IP Specific Source Multicast Data

An IP multicast, a specific technology, applied in the field of communication, can solve the problems that cannot meet the functional requirements, and achieve the effect of correct forwarding

Active Publication Date: 2017-12-19
山东联信大数据有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when there are two forwarding entries (multicast group, multicast source, PON port 1) and (multicast group, 0, PON port 2), the multicast flow of this source will only be forwarded from PON port 1, Instead of passing through PON port 2, it cannot meet the requirements of IGMP V3 protocol functions.

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  • A Realization Method of Accurately Forwarding IP Specific Source Multicast Data

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Embodiment Construction

[0052] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0053] In order to thoroughly understand the present invention, detailed steps and detailed interfaces will be provided in the following description, so as to explain the technical solution of the present invention. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions.

[0054] The invention provides a realization method of accurately forwarding IP specific source multicast data, and maintains hardware IP multicast table items according to the ...

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Abstract

The invention provides an implementation method of precisely forwarding IP (Internet Protocol) specific source multicast data. A hardware IP multicast forwarding table is respectively maintained according to multicast forwarding table items or PON (Passive Optical Network) port forwarding items, through two-stage multicast table items, the multicast stream of a specific source can be precisely controlled, the problem that the hardware multicast table items forwarded by all sources of EXCLUDE are inoperative due to a longest matching principle of three-layer table items, so that the correct forwarding of the multicast data is implemented.

Description

technical field [0001] The invention relates to the communication field, in particular to a realization method for accurately forwarding IP-specific source multicast data. Background technique [0002] IGMP (Internet group Management Protocol, Internet Group Management Protocol) is a protocol responsible for IP multicast member management in the TCP / IP (Transmission Control Protocol / Internet Protocol) protocol suite, used for IP hosts and Establish and maintain multicast group membership between its directly adjacent multicast routers. IGMP V3 is the third version of the multicast protocol. On the basis of being compatible with and inheriting from IGMP V1 and IGMP V2, it adds control over multicast sources. IGMP V3 adds filtering modes for multicast sources (filtering modes include INCLUDE, EXCLUDE, where IN CLUDE is an explicit requirement to receive multicast information from a specific multicast source, or the inclusion mode; EXCLUDE is an explicit requirement to reject ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18
Inventor 吴洋
Owner 山东联信大数据有限公司
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