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Internet Group Management Protocol Fails In A Radio LAN Environment
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Written by Administrator
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Saturday, 09 August 2008
Internet Group Management Protocol Fails In A Radio LAN Environment
To those that think IP Multicast works in a radio environment there is one little problem. IGMP is not a reliable protocol. How IGMP attempts to gain reliability is by sending several copies of its messages. For example; the IGMP join group message will be sent several times, after all, isn’t it ok as long as the intended receiver of the IGMP message is aware of this “feature”. The problem is when it comes to the radio LAN environment packet loss is often so high that those little IGMP packets are often stepped on. The failure of this “feature” was observed at the INTEL Wimax lab in Hillsburo Oregon by Worldcast and INTEL engineers. So, in order to create a dynamic steam of point-to-multipoint data in a radio LAN environment a new mechanism is needed to overcome the inadequacies of IGMP -
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| Last Updated (
Saturday, 09 August 2008 ) |