Receiver-initiated group membership protocol (RGMP): A new group management protocol for IP multicasting
Journal
IEEE Transactions on Broadcasting
Journal Volume
50
Journal Issue
3
Pages
279-288
Date Issued
2004
Author(s)
Yang, D.-N.
Abstract
This paper proposes a new group management protocol called Received-initiated Group Membership Protocol (RGMP) for IP multicasting. The dominant group management protocol on the Internet to date is the Internet Group Management Protocol (IGMP). Unlike IGMP based on a query/reply model, an RGMP host actively takes responsibility to refresh group membership on the neighboring multicast routers. Each RGMP host maintains a "refresh" timer per group. The refresh timer is reset once the suppression rule holds true for a received report message, where the report may be a join, departure, state change, or refresh message. The RGMP refresh timer is adjusted in a way to be adaptive and self-synchronized. This receiver-initiated, self-synchronized approach makes the RGMP suppression mechanism superior to that of IGMP v1/v2, because the latter can be applied only to periodical refresh messages. As a result, RGMP protocol overhead is significantly reduced over a wide variety of service scenarios compared to IGMP v3. In addition to the reduced protocol overhead, RGMP is robust, scalable and adaptive to serve as a group management protocol.
Subjects
Group management protocol; IGMP; IP multicast; RGMP
Other Subjects
Group management protocols; Internet group management protocol (IGMP); Multicast routers; Bandwidth; Mathematical models; Multicasting; Quality of service; Routers; Synchronization; Video conferencing; World Wide Web; Network protocols
Type
journal article
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