Scientist Exhibit

Radia Perlman

1951 – Present United States

Designed the Spanning Tree Protocol for reliable Ethernet network bridging

Radia Perlman

Overview

About Radia Perlman

Radia Perlman is a computer scientist and network engineer whose work made large computer networks more reliable and manageable. She designed the Spanning Tree Protocol, which allows Ethernet bridges to prevent loops while maintaining redundant paths. She has also contributed extensively to network routing, security, and protocol design. Her work became fundamental to the operation and evolution of networked computer systems.

Scientific Contribution

Key Discovery

Spanning Tree Protocol

A network protocol that prevents bridging loops and enables reliable Ethernet networks.

Life Timeline

Important Moments

1985

invention

Invents the Spanning Tree Protocol

While working at Digital Equipment Corporation, Perlman designed the Spanning Tree Protocol, enabling Ethernet networks to prevent bridging loops while retaining redundant paths.

1985

publication

Publishes the Spanning Tree algorithm

Perlman's work on distributed computation for network bridges provided the algorithmic basis for robust large-scale bridged Ethernet networks.

2014

award

Inducted into the Internet Hall of Fame

The Internet Society inducted Perlman for pioneering contributions to network routing and bridging technology.

2016

award

Inducted into the National Inventors Hall of Fame

Perlman was inducted for innovations in network routing and bridging, including the Spanning Tree Protocol.

Places & Networks

Institutions