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Talks & Seminars
Title: Recent Advances in Network Routing and Bridging Protocols
Radia Perlman, Intel Labs Fellow
Date & Time: January 12, 2011 10:00
Venue: Lecture Hall, 3rd floor, KR bldg
Abstract:
Network Protocols are usually taught with the concept of layers. Although it is a great way to start thinking about network protocols, when one sees the reality of networking today, it is very confusing. Layer 2 is supposed to deliver a packet of information from one node to a neighbor node. Layer 3 is supposed to create paths and forward packets. But in today’s networks, routing and forwarding are done at both layers 2 and 3. Why would that be? The only way to understand this is to understand the history. Radia Perlman will explain the story behind how spanning tree bridges were invented, why it was a bad idea, and why it is still popular today (it is how Ethernet works today). She will also discuss TRILL (TRansparent Interconnection of Lots of Links), a new standard intended to replace spanning tree Ethernet.
Speaker Profile:
Radia Perlman is a Fellow at Intel Labs. She came to Intel less than a year ago. She is the inventor of the spanning tree algorithm which is the heart of modern day Ethernet, and a lot of innovations that make link state routing protocols robust and scalable. In particular she is the designer of IS-IS, a routing protocol widely deployed in ISPs. She has also made major contributions in security. She is the author of “Interconnections” and coauthor of “Network Security”, textbooks widely used in the classroom and by engineers. She has PhD in computer science from MIT, holds about 100 issued patents, and has received various awards such as the Sigcomm lifetime achievement award in networking, the Usenix lifetime achievement award, and an honorary doctorate from KTH.
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