What This Document Is
This is a focused set of lecture materials from COMSCI 218, Advanced Computer Networks, at UCLA, centering on the critical topic of network scheduling. It delves into the principles and techniques used to manage packet transmissions across network channels, a foundational element of Quality of Service (QoS) and efficient network operation. The material originates from Professor Keshav’s course notes and references key research in the field.
Why This Document Matters
Students enrolled in advanced networking courses, or those preparing for related professional certifications, will find this resource particularly valuable. It’s ideal for supplementing classroom learning, preparing for assignments, or gaining a deeper understanding of the complexities involved in designing and implementing network systems that can handle diverse traffic types and demands. Understanding scheduling is crucial for anyone involved in network architecture, performance analysis, or QoS provisioning.
Topics Covered
* Fundamental concepts of network scheduling and its role in QoS.
* Fairness criteria in packet scheduling, including Max-Min Fairness.
* Performance metrics used to evaluate scheduling algorithms (delay, bandwidth, loss rate).
* Different scheduling approaches for best-effort and guaranteed service traffic.
* Work-conserving versus non-work-conserving scheduling strategies.
* Comparison of scheduling techniques like FIFO, Priority Queuing, and Round Robin.
* Considerations for per-flow versus per-class queueing.
What This Document Provides
* A detailed exploration of the core ingredients required for QoS support within a network.
* Key references to seminal research papers and resources in the field of network scheduling.
* An overview of control parameters and performance measures used in scheduling design.
* Discussion of performance bounds – deterministic and statistical – relevant to network applications.
* Conceptual frameworks for understanding schedulable regions and resource allocation.
