Summary

• Physical resource can be dynamically partitioned as a set of virtual resources with a hierarchical relationship

• Different entities (organizations, service providers, and applications) can independently specify entity-specific policies for their portions of the virtual resource hierarchy

• Admission control and hierarchical scheduling ensure policies are met for all entities

  • QoS provided for both individual traffic streams and traffic aggregates of different entities

• Collaborative and competitive resource sharing seamlessly integrated

• Abstraction applicable to other resources (CPU) also

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