IGMP is a host-router signaling protocol, and it is used to manage the membership of Internet Protocol multicast groups for IPv4.
IGMPv3 adds "source filtering" function required to support SSM. Firstly, this paper analyses the improvements and implementation
of IGMPv3. Secondly, it points out the problems when applying IGMPv3 to IPTV carrying network. Then it presents the solutions by
improving IGMPv3 protocol to reduce channel zapping time which is one of the important metrics affecting the QoE in IPTV service.
Method to realize the end user authentication, authorization and accounting in the IP multicast security and authentication area by
extending the IGMPv3 protocol is described at last.
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