Table of Contents
PPT Slide
Other Contributors
Outline
Introduction
QoS at Different Traffic Granularities
Hierarchical Resource Sharing
Hierarchical Resource Sharing
Packet Scheduling Algorithm
Traffic Control Mechanisms and Timescales
Hierarchical Resource Scheduling
Previous Work
Our Approach
Hierarchical Generalized Processor Sharing
GPS Example
H-GPS Example
GPS and H-GPS Properties
Packet vs. Fluid System
Packet Approximation of Fluid System
Approximating GPS with WFQ
Packet Approximation of H-GPS
H-GPS Example
Approximating H-GPS: Decision at Time 11
Packet Approximation of H-GPS
H-GPS and H-WFQ Example
H-GPS and H-WFQ Example
PFQ and H-PFQ
A More Accurate Approximation of GPS
H-GPS and H-WF2Q Example
WF2Q+
Example Hierarchy
Uncorrelated Cross Traffic
Correlated Cross Traffic
H-GPS and H-PFQ
Limitation of GPS and H-GPS Model
Service Curve QoS Model
Service Curve QoS Model
Fairness
Hierarchical Fair Service Curve Model
Fundamental Conflicts
H-FSC Scheduling Algorithm
H-FSC Algorithm
H-FSC Complexity
Delay and Fairness Properties of H-FSC
PPT Slide
PPT Slide
Implementation Status
PPT Slide
NSF vBNS Network
Local Darwin Testbed
Router Node Architecture
Simple Virtual Network Experiment
Base-line Case: No Hierarchy
Link-sharing at Root Node
Test Case: Two Levels of Resource Hierarchy
Link-sharing at Root Node
Link-sharing at Interior Application Node
PPT Slide
Ongoing Work
High Speed Implementation
High Speed Implementation (2)
Core-Stateless Implementation
Wireless Networks
Darwin: Electronic Value-added Services Market
Resource Virtualization
Summary
References
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