Adtran Gmbh

Jared Lee Bell

Neil M Jensen

Jonathan T Pardeck

Multicast delivery of channels of information using an Internet Group Management Protocol (IGMP) is improved by implementing a smart immediate leave to avoid either excessive bandwidth utilization or undesired gaps in deliver of an IGMP channel to a host, such as a set top box. The smart immediate leave technique checks a channel-host list associated with a network interface of a proxy or a Digital Subscriber Line Access Multiplexer (DSLAM) to ensure continued delivery of IGMP channel information to remaining hosts connected to the IGMP channel on the network serviced by the network interface.

Smart immediate leave for internet group management protocol (IGMP) system

Flexibility of handling of multicast information using an Internet Group Management Protocol (IGMP) is improved by overcoming failures to respond to group specific queries. Such failures occur when heterogenous host devices are used on a common network. When a failure to respond to a group specific query is experienced, a general query is used to obtain information that was not provided by the group specific query.

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Madison, AL, United States of America

Jared Lee Bell