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The Maestro Group Manager: A Structuring Tool For Applications WithMultiple Quality of Service Requirements

Author
Birman, Ken; Friedman, Roy; Hayden, Mark
Abstract
{\em Maestro} is a tool for managing sets of protocol stacks that satisfy varied quality of service or security requirements. Intended primarily for multimedia groupware settings, it permits a single application to efficiently operate over multiple side-by-side protocol stacks, each specialized to a different communication stream. Maestro can also be used to manage other sorts of external protocol stacks, for example to orchestrate connection setups that require coordinated actions at all endpoints in a multicast group. Our tools are fault-tolerant and secure; they can safely distribute session keys or handle delicate synchronization tasks that would otherwise complicate the managed stacks and potentially interfere with their quality-of-service objectives. Moreover, Maestro can automatically track subgroup membership on the basis of ``properties'', facilitating its use by developers who prefer not to work directly with multicast communication interfaces.
Date Issued
1997-02Publisher
Cornell University
Subject
computer science; technical report
Previously Published As
http://techreports.library.cornell.edu:8081/Dienst/UI/1.0/Display/cul.cs/TR97-1619
Type
technical report