SPAND: Shared PAssive Network performance Discovery

5/26/98


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Table of Contents

SPAND: Shared PAssive Network performance Discovery

SPAND: Shared PAssive Network performance Discovery

The Problem

Why Does It Matter?

Research Contributions

Questions to Answer

Our Approach:Shared Passive Measurements

Previous Work vs. SPAND

What Iím not doing

Outline

Outline

Outline

Related Work: Probing Algorithms

Probing Algorithms

Probing Algorithms

Probing Algorithms

Related Work: Server Selection Systems

Server Selection Systems

Related Work vs. SPAND

Related Work vs. SPAND

Related Work vs. SPAND

Related Work vs. SPAND

Related Work vs. SPAND

Outline

Outline

Benefits of Shared & Passive Measurements

Benefits of Sharing Measurements

Benefits of Sharing (Contd.)

Benefits of Sharing (Contd.)

Benefits of Passive Measurements

Benefits of Passive Measurements (Contd.)

Outline

Outline

Design of SPAND

Design of SPAND (Contd.)

Design of SPAND

Design of SPAND

Design of SPAND

Design of SPAND

Design of SPAND

Design of SPAND

Outline

Outline

Implementation Status

Implementation Status

Heuristics at Packet Capture Host

Accuracy Metrics

Is Performance Stable?

Is Performance Stable?

Is Performance Stable?

Showing Accuracy: Methodology

Distribution of Reports

Distribution of Reports

Servicing Perf Requests

Accuracy of Perf Responses

Accuracy of Perf Responses

Remaining Sources of Error

Outline

Outline

Research Plan

Research Plan

Research Plan

Research Plan

Research Timeline

Research Timeline

Research Timeline

Conclusions

Future Work

Author: Daedalus Group

Email: stemm@cs.berkeley.edu

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