Method for realizing simplified IGMP multicast surrogate

Abstract

The present invention relates to numerical information transmission in network technique, especially referring to simplified IGMP multicasting proxy implementation method. It contains host computer transmitting IGMP adding request message requesting connecting preset multicasting group; IGMP multicasting proxy sending said request message to authentication module to make authentication, at the same time checking whether said host computer applied channel already establishment, if it is not establishment then transmitting Said request message to multicasting router requesting said channel; if authentication fail then IGMP multicasting proxy transmitting leaving message to multicasting router. The present invention raises host subscriber switch channel speed, reducing hardware requirement, simplifying software process.

Description

[technical field] [0001] The invention relates to the transmission of digital information in network technology, in particular to a simplified realization method of IGMP multicast agent. [Background technique] [0002] The IGMP (Internet Group Management Protocol) protocol runs between the host and the multicast router directly connected to the host, and is a protocol used by the IP host to report the membership of the multicast group. Through the IGMP protocol, on the one hand, the host can notify the local router that it wants to join and receive information about a specific multicast group through the IGMP protocol; on the other hand, the router periodically queries whether the members of a known group in the LAN are Active status. The main function of the IGMP protocol is to solve the problem of occupying bandwidth when broadcasting on the network. In the network, when sending broadcast information to all clients, the switch that supports IGMP will send the broadcast i...

AI Technical Summary

Problems solved by technology

[0013] 1. It is required that the switching fabric can support L3 functions and support the IGMP protocol to capture the host CPU, but the chips that can realize these functions are expensive, and the software workload is relatively large, and the requirements for the CPU are relatively high;

[0014] 2. To realize the four functions of the above standard IGMPPROXY, the software processing process is complicated;

[0015] 3. For the multi-member multi-channel under the DSLAM (Digital Subscriber Line Access Multiplexer), the CPU needs to process a large number of messages in real time, occupying a large amount of CPU resources, which requires high CPU, and it is difficult to guarantee the timeliness of processing. If Improving the CPU performance will increase the cost. If the CPU performance is not improved, the processing speed of user requests and the number of concurrent user request processing will be reduced.

Images