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Method and device for processing multicast source filtering entries

A processing method and technology of a processing device, applied in the field of communications, can solve the problems of wasted bandwidth, high complexity, poor real-time performance, etc., and achieve the effects of improving real-time performance, reducing CPU overhead and bandwidth occupancy

Active Publication Date: 2017-02-15
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] In existing implementations, the hardware multicast source filter table relies on software topology discovery, which is highly complex and poor in real-time performance; in order to improve topology real-time performance, software topology discovery needs to send packets frequently, resulting in a waste of bandwidth; high Frequency topology judgment and calculation increases CPU consumption

Method used

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  • Method and device for processing multicast source filtering entries
  • Method and device for processing multicast source filtering entries
  • Method and device for processing multicast source filtering entries

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see figure 2 , figure 2 It is a schematic flowchart of a method for processing a multicast source filtering entry in Embodiment 1 of the present invention. The specific steps are:

[0038] Step 201, when the stack port of the member device is up, send a multicast source filtering learning message to other member devices through the stack port of the member device, and the message carries the source ID and path distance.

[0039] Wherein, in step 201, the path distance carried by the multicast source filtering learning message is used to determine the distance between the member device receiving the multicast source filtering learning message and the member device sending the multicast source filtering learning message. path distance, and the source ID is the ID bound to the local service port.

[0040] In a specific implementation, the path distance can be realized through packet hop count and TTL.

[0041] The multicast source filtering learning message is only s...

Embodiment 2

[0054] This embodiment describes in detail that when a member device receives a multicast source filtering learning message through a stack port, it obtains the source ID and path distance carried in the multicast source filtering learning message; according to the acquired source ID and path distance, and The specific process of generating the multicast source filter entry corresponding to the source ID by the stack port receiving the multicast source filter learning message.

[0055] (1) When the number of member devices forming the stack system is an odd number and there is a multicast source filtering entry corresponding to the acquired source ID locally, the step of generating the multicast source filtering entry corresponding to the source ID The method is:

[0056] When it is determined that there is a filter stack port in the multicast source filter entry, and the stack port is different from the stack port that receives the multicast source filter learning message, pe...

Embodiment 3

[0087] In this embodiment, TTL is used as an example to realize the path distance. When a member device receives a multicast source filtering learning message through a stack port, it obtains the source ID and TTL carried in the multicast source filtering learning message. The specific process of generating the multicast source filtering entry corresponding to the source ID and TTL of the source ID and TTL of the multicast source, and the stack port receiving the multicast source filtering learning message.

[0088] see Figure 4 , Figure 4 It is a schematic flowchart of a method for processing multicast source filtering entries in Embodiment 3 of the present invention. The specific steps are:

[0089] Step 401, when a member device receives a multicast source filter learning message through a stack port, it obtains the source ID and TTL carried in the message.

[0090] The TTL carried by the member device sending the multicast source filtering learning packet is the pre-c...

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Abstract

The invention discloses a method for processing multicast source filtering table items. The method includes: each member device sends a multicast source filtering learning message through the stacking port when the stacking port is up, and the hardware forwarding chip is mainly used, and the software simply cooperates Implement the processing of multicast source filtering entries. Based on the same inventive idea, the present invention also proposes a device, which improves the real-time performance of processing multicast source filtering entries, and reduces CPU overhead and bandwidth occupation.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for processing multicast source filtering table items. Background technique [0002] Ethernet switch stacking technology can interconnect multiple switches together to form a distributed switching architecture and operate as a logical switching entity. [0003] From a management and configuration point of view, a distributed switching architecture looks like a switching device; from a performance point of view, each switch in the distributed switching Layer traffic communication services make local forwarding decisions. [0004] Support stacking Multiple switching devices can be connected to each other to form a "combined device". We call this "joined device" a stack system, and each device that makes up the stack system is called a member device. After multiple member devices form a stack system, they become a whole in terms of management and use. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/18H04L45/74
Inventor 梁学伟
Owner NEW H3C TECH CO LTD