Addressing the Challenges of Web Data Transport

6/17/98


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Table of Contents

Addressing the Challenges of Web Data Transport

Motivation

Outline

The Web Data Transport Problem

#1: Multiple Independent Components

#2: Short and Bursty Transfers

Challenges and Solutions

Guiding Principles

Outline

TCP Basics

TCP Loss Recovery

TCP Congestion Control

HTTP Basics

Separate Connections

Competing TCP Connections

Outline

Shared Connection (P-HTTP)

P-HTTP

New Solution

Methodology

Outline

TCP Session

TCP Session

#1: Integrated Congestion Control

#2: Connection Scheduling

Sharing with TCP Session

Competing TCP Connections

#3: Integrated Loss Recovery

Loss Detection Algorithm

Performance

Packet Loss

Summary of TCP Session

What’s still missing?

Outline

TCP Fast Start

Fast Start Dynamics

Fast Start Issues

Protect Others

Protect Oneself

TCP Fast Start Performance

FS with changed network load

Summary of TCP Fast Start

Synergy Between TCP Session and TCP Fast Start

Outline

Summary of Contributions

Principles Revisited

Future Work

Summary of Contributions

 Author: Venkata N. Padmanabhan

Email: padmanab@cs.berkeley.edu

Home Page: http://www.cs.berkeley.edu/~padmanab