CMPUT429/CMPE382 Winter 2001

3/18/02


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Table of Contents

CMPUT429/CMPE382 Winter 2001

I/O to External Devices and Other Computers

Networks

Example Major Networks

Networks

Interconnections (Networks)

More Network Background

ABCs of Networks

A Simple Example

Questions About Simple Example

A Simple Example Revisted

Software to Send and Receive

Network Performance Measures

Universal Performance Metrics

Example Performance Measures

Total Latency Example

Total Latency Example

Total Latency Example

Total Latency Example

Simplified Latency Model

Overhead, BW, Size

Measurement: Sizes of Message for NFS

Impact of Overhead on Delivered BW

HW Interface Issues

SW Interface Issues

CM-5 Software Interface

Network Media

Costs of Network Media (1995)

Connecting Multiple Computers

Example Interconnects

Switch Topology

Important Topologies

Topologies (cont)

Butterfly

Summary: Interconnections

Review: Performance Metrics

Connection-Based vs. Connectionless

Connection-Based vs. Connectionless

Routing Messages

Deterministic Routing Examples

Store and Forward vs. Cut-Through

Store and Forward vs. Cut-Through

Congestion Control

Congestion Control (cont.)

Practical Issues for Inteconnection Networks

Practical Issues

Cross-Cutting Issues for Networking

Protocols: HW/SW Interface

Protocol

TCP/IP packet

Example Networks

Connecting Networks

Example Networks

Example Networks (cont’d)

Examples: Interface to Processor

Packet Formats

Example Switched LAN Performance

Networking Summary

Author: Randy H. Katz

Email: amaral@cs.ualberta.ca

Home Page: www.cs.ualberta.ca

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