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Radia Perlman: The Forgotten Architect of The Internet: How a Simple Algorithm and a Poem Prevented the Collapse of Modern Networks (Sumsum's Marginalia: Forgotten Architects of Technology) - Softcover
Book 4 of 4: Sumsum's Marginalia: Forgotten Architects of Technology
Synopsis
Most of the machinery that holds the digital world together is invisible. You open a laptop, a page loads. Underneath, thousands of small decisions are made by devices you never see.
This book is about one of the people who taught those devices how to decide.
Her name is Radia Perlman. If you work in networking, you have used her work without knowing it. If you have studied for a networking certification, you met her algorithm in a chapter you were tempted to skip.
In the 1980s, Ethernet made it easy to put computers on a wire. Bridges made it easy to extend the wire. But no one solved what happens when that wire loops back on itself. A single message could become a storm and collapse the entire network.
Radia Perlman's answer was the Spanning Tree Algorithm (STP) - a distributed election, a set of cost comparisons, and a rule that gave every part of the network exactly one path. A tree built without a builder, from nothing but local comparisons. It is the reason your WiFi, your office switch, and the modern Internet don't eat themselves.
She also explained it in a two-verse poem - perhaps the most famous piece of technical verse ever written.
This is Book 4 in "Sumsum's Marginalia: Forgotten Architects of Technology" series.
What you will learn:
- How Ethernet loops created broadcast storms and why early networks collapsed
- How the Spanning Tree Algorithm works, step-by-step, with a small example you can trace by hand
- How a clean mathematical idea became an IEEE standard
- Why IS-IS, TRILL, and RBridges were needed after STP
- Ten timeless design lessons for anyone who builds distributed systems
This book is an independent, non-fiction history based on public sources. It describes the poem's argument in the author's own words; it does not reproduce the poem. It includes two original diagrams by the author.
For programmers, network engineers, and technically curious adults. No networking degree required.
The invisible foundations deserve to be seen.
"synopsis" may belong to another edition of this title.
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Radia Perlman: The Forgotten Architect of The Internet: How a Simple Algorithm and a Poem Prevented the Collapse of Modern Networks (Sumsum's Marginalia: Forgotten Architects of Technology)
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