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Wireless LAN IP multicast transmission anomaly quick detecting method

A wireless local area network and IP multicast technology, applied in transmission systems, digital transmission systems, and devices that provide special services in branch offices, etc., can solve problems such as inability to real-time detection and slow response, and achieve poor reliability, avoid influence, and promote effect of development

Inactive Publication Date: 2008-09-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method cannot be detected in real time, and the response speed is slow

Method used

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  • Wireless LAN IP multicast transmission anomaly quick detecting method
  • Wireless LAN IP multicast transmission anomaly quick detecting method
  • Wireless LAN IP multicast transmission anomaly quick detecting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Such as figure 1As shown, the wireless access point device for transmitting IP multicast is composed of a wireless interface module, a multicast member management module, an uplink interface module, an 802.1d bridging module, an IP routing module, a protocol application module and a configuration management module. The packets received by the wireless interface module of the device are forwarded to the uplink interface module through the 802.1d bridge module or the IP routing module, and the packets received by the uplink interface module are forwarded to the wireless interface module through the 802.1d bridge module or the IP routing module. When the wireless interface module or uplink interface module receives an IGMP (Internet Group Management Protocol) message or an IP multicast message, it is sent to the multicast member management module for processing: the multicast member management module processes the IGMP message received from the wireless interface module fi...

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PUM

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Abstract

The method checks rapidly out the abnormal user end, avoids the unnecessary retransfer and raises the reliability of IP group broadcast transfer. The processing during text sending includes: (a) The wireless accessing device (WAD) receives the data pack and passes the authorization against the aim wireless user end (AWUE), then judges the text number which AWUE allows to send to the hardware buffer (HB) of WAD. If AWUE allows sending text into HB, then sends the pack into the HB, otherwise disposes the pack. The processing during sending the back-dispatch includes: (b) after the sending is completed, if the WAD discovers that the pack sending is failure, it records the number of the continuous failure, reduces the text number for AWUE allowing to send into HB. When the number of the continuous failure reaches the preset max value, it defines that the user end is abnormal.

Description

technical field [0001] The invention relates to a method for realizing the service application of IP multicast technology in wireless local area network networking in the field of wireless communication, in particular to a method for transmitting IP multicast frames in an IEEE 802.11 wireless local area network (WLAN). Background technique [0002] As an access technology for network terminals, WLAN has the advantages of high access speed and simple wiring, and is more and more widely used in home networks. With the continuous development of broadband and video compression technologies, video and voice The demand for multimedia transmission over the network is growing rapidly. Currently more popular multimedia applications, such as real-time video and voice interaction, IPTV (Internet Protocol TV) and other applications, all require relatively high network bandwidth support, and the transmission of multimedia applications through wireless LAN technology has gradually become ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04L12/26H04L12/56H04L1/18H04L12/28
Inventor 孙旺强刘鹏午王占利
Owner ZTE CORP
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