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A New Vision for Core Router Architectures

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If you have a question about this talk, please contact Eiko Yoneki.

The talk slides:

The Ludd demo video:

LUDD is an internal Cisco research project begun in 2008, with the goal of research into new approaches to delivering fault tolerant software for core routers. As core routers (the highest performance routers in the Internet) may not be familiar to some, we begin with an architectural overview of core routers and how they are used in the network. We then describe how software features are currently delivered, and describe the new models of software delivery and services we are exploring. An important point is the impact of these new models on the reliability, availability and maintainability of future core routers. We close with a discussion of example LUDD engagements with universities, researchers, and students in exploring and evaluating the new models.

Bio: Robert Broberg is currently a Distinguished Engineer at Cisco Systems. His career has spanned the networking industry since 1984. Key team contributions include the introduction of Internet capable PCs in 1986 through the electrical/optical shift for Internet traffic. In addition to his work at Cisco, Robert has worked at Bell Laboratories, Ungermann-Bass and AYR in key contributing positions, and through many paradigm shifts in the Internet.

Robert’s main current research interest is fault tolerant versioning systems as they apply to large scale Internet systems. Some documentation of his recent work is available at

This talk is part of the Computer Laboratory Systems Research Group Seminar series.

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