![]() ![]() She has more than 130 patents her most recent (#10,298,551, for an algorithm that helps preserve privacy when devices share information) was granted on May 21, 2019. Radia Perlman defied norms, kicked down obstacles, and became a living legend in a field that demands nothing short of genius out of its top minds. ![]() Radia Perlman, inventor of the underlying algorithm, recounts how it was first developed. Perlman went on to do more fundamental work in networking, security, and privacy. 1 Citations 3 Altmetric Metrics The spanning tree protocol is a key component of today’s Ethernet. in 1984, is, with slight modifications, still used today. Her famous “spanning tree” algorithm, which she invented at Digital Equipment Corp. Perlman used her knowledge of mathematics to design more robust algorithms for routers and prove that they were mathematically correct. This is complicated business, and the early algorithms for routing packets had major flaws that could potentially crash the entire internet. Packet routing lets any two computers on the network communicate with each other, no matter how many links in the network the packets must transverse. ![]() They let computers exchange data in chunks called packets that find their way through the data network like a package moving by truck, rail, or air. In a recent in-depth profile on the life and career of Perlman (2014 Internet Hall of Fame inductee), Steven Johnson follows her career with steps along the way including her perseverance as the sole woman in her freshman undergraduate class at MIT to her development of the spanning tree protocol and her influence on younger professionals. That’s where routers and switches come in. ![]()
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