EECS 122, Lecture 20

4/6/99


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Table of Contents

EECS 122, Lecture 20

Congestion Control Model

Congestion Control Model

Congestion Control Model

Relationship to Window Sizes

Goal of Congestion Control

What Happens at a Router

What Happens at a Router

FIFO Queues

Observations on FIFO

Variants on FIFO

Traffic-Sensitive Queuing

Fair Queuing (and R/R)

FQ Details

FQ Details

Observations on FQ

General Packet Handling Model

Active Buffer Management

Random Early Detection (RED)

RED Operation

RED Operation

RED Characteristics

Congestion Avoidance & Control

Congestion Control Taxonomies

Open Loop Congestion Control

Closed Loop Congestion Control

Perspective on Approaches

Evaluation Criteria

Effectiveness

Network Power

Jainís Fairness Index

Congestion Control with TCP

Challenges for TCP

Author: kfall

Email: kfall@cs.berkeley.edu

Home Page: http://www-inst.eecs.berkeley.edu/~ee122