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

  • Authors:
  • Ken Birman;Roy Friedman;Mark Hayden

  • Affiliations:
  • -;-;-

  • Venue:
  • The Maestro Group Manager: A Structuring Tool For Applications With Multiple Quality of Service Requirements
  • Year:
  • 1997

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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.