A combined group/tree approach for scalable many-to-many reliable multicast

We present the design, implementation, and performance analysis of group-aided multicast (GAM), a scalable many-to-many reliable multicast transport protocol. GAM achieves high quality ACK trees while keeping the tree maintenance overhead reasonably low in the presence of dynamic group membership an...

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Bibliographic Details
Main Authors: Wonyong Yoon, Dongman Lee, Hee Yong Youn, Seungik Lee, Seok Joo Koh
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Communications technology
Delay
Maintenance
Multicast protocols
Organizing
Routing
Scalability
Throughput
Transport protocols
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Description
Summary:We present the design, implementation, and performance analysis of group-aided multicast (GAM), a scalable many-to-many reliable multicast transport protocol. GAM achieves high quality ACK trees while keeping the tree maintenance overhead reasonably low in the presence of dynamic group membership and route changes. It is supported by a group configuration mechanism organizing the members in a multicast session into multiple small groups and a tree configuration mechanism maintaining logical trees according to the underlying multicast routing trees. With the two mechanisms, GAM builds a two-layer hierarchy of multi-level logical trees from which high-quality per-source ACK trees are generated. Simulation results show that the GAM protocol is more scalable than a NACK suppression protocol in terms of processing time for request/repair messages and recovery latency.
ISSN:0743-166X
2641-9874
DOI:10.1109/INFCOM.2002.1019384