Multicast message forwarding control method and apparatus of switch device

A technology of multicast message and control method, applied in the field of communication, can solve problems such as failure to perform necessary control, user harm, etc., and achieve the effect of enhancing security and user experience, and saving bandwidth and switch resources.

Inactive Publication Date: 2017-01-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the switch does not control the establishment of this relationship. That is, as long as the port receives the IGMP protocol message, the switch will establish the relationship between the group and the group membership according to the protocol content and perform corresponding multicast forwarding. Cause some harmful or useless information to be forwarded to users, causing harm to users

Method used

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  • Multicast message forwarding control method and apparatus of switch device
  • Multicast message forwarding control method and apparatus of switch device
  • Multicast message forwarding control method and apparatus of switch device

Examples

Experimental program
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Embodiment 1

[0023] This embodiment provides a multicast message forwarding control method of a switch device, the method is used to control the multicast forwarding to filter some unsafe or meaningless information, because the multicast forwarding is divided into the following two stages : The stage of establishing the group-to-group membership relationship; the corresponding forwarding stage is carried out according to the membership relationship. In the second stage, the relationship between the multicast group and the group membership has been established, and the corresponding multicast stream will be sent to the corresponding member port. At this time, it can be controlled through ACL, but this will consume a lot of ACL entries and switch resources, so In this embodiment, the goal of controlling multicast forwarding is achieved by controlling the establishment of the relationship between the multicast group and the group members.

[0024] figure 1 It is a flow chart of the multicast...

Embodiment 2

[0034] This embodiment describes in detail the multicast packet forwarding control method of the switch device provided in the above-mentioned embodiment 1 by disclosing more technical details.

[0035] like figure 2 As shown, the multicast message forwarding control method of the switch device provided in this embodiment includes the following steps:

[0036] Establish configuration files corresponding to each control entry used to filter multicast packets, and provide users with a configuration interface;

[0037] According to the user's configuration, write each control item into the configuration file in a certain format;

[0038] Get the IGMP message before the IGMP message enters the IGMP Snooping module, and obtain the multicast source IP and destination IP.

[0039] Read the configuration content in the configuration file to form a linked list;

[0040] Traverse the linked list and compare each control entry with the multicast source IP and destination IP obtained ...

Embodiment 3

[0065] This embodiment provides a device for controlling multicast message forwarding of a switch device, which is used to implement the method for controlling multicast message forwarding of a switch device provided in Embodiment 1 and Embodiment 2 above, and the device can be set on a switch Inside.

[0066] Image 6 It is a structural block diagram of the multicast message forwarding control device of the switch device provided in Embodiment 3 of the present invention, as Image 6 As shown, the device 60 includes the following components:

[0067] Obtaining module 61, used for obtaining the protocol IP address and the destination IP address interconnected between the source networks of the multicast group from the received IGMP message;

[0068] Matching module 62, for matching the source IP address and destination IP address of the multicast group with the preset source IP address and destination IP address;

[0069] The control module 63 is configured to prohibit the f...

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Abstract

The invention provides a multicast message forwarding control method and an apparatus of a switch device, which is used to solve a problem that a switch may send harmful or useless information to a user in a current multicast technology. The method comprises the following steps of acquiring a protocol IP address and a destination IP address which are interlinked between source networks of a multicast group from a received IGMP message; matching a source IP address and the destination IP address of the multicast group with a source IP address and a destination IP address which are set in advance; and in the case of successful matching, forbidding forwarding the IGMP message, and in the case of matching failure, forwarding the IGMP message to an IGMP Snooping module so that a relationship is established between the multicast group and group members. By using the method and the apparatus of the invention, filtering of some identified harmful or useless multicasts is achieved and safety of user data is guaranteed.

Description

technical field [0001] The invention relates to the communication field, in particular to a multicast message forwarding control method and device for switch equipment. Background technique [0002] Multicast technology effectively solves the problem of single-point transmission and multi-point reception, and realizes efficient point-to-multipoint data transmission in the IP network, which can greatly save network bandwidth and reduce network load. As a communication method parallel to unicast and broadcast, the significance of multicast is not only in this, but more importantly, it can use the multicast characteristics of the network to conveniently provide some new value-added services, including online live broadcast, Internet TV, remote Internet information service fields such as education, telemedicine, Internet radio, and real-time video conferencing. The realization of multicast technology is to establish the corresponding relationship between multicast groups and me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/761H04L45/16
CPCH04L49/201
Inventor 唐利
Owner ZTE CORP
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