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BIER: Tony Przygienda

Mirjam Kühne

Supporting service meshes and multicast has always been a challenge on IP networks; BIER provides an answer to these problems.

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MPLS: Ross Callon

Mirjam Kühne

Multiprotocol Label Switching, or MPLS, underlies much of the magic that makes large-scale transit networks run, and is a precursor to concepts like controller-based SDN.

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MPLS/TE: George Swallow

Mirjam Kühne

Traffic engineering is an interesting case study in using packet based mechanisms to solve problems traditionally solved with circuit switched network technologies. George Swallow is one of the original designers of MPLS/TE.

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Pseudowires: Luca Martini

Mirjam Kühne

In the first few decades of networking, circuit switched solutions reigned supreme. When packet switched networks were fully adopted, network engineers discovered there were some problems that were still best solved with circuit switched technologies--hence the invention of emulated point-to-point …

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LISP: Dino Farinacci

Mirjam Kühne

Location and identity are often bundled into a single "thing" in IP networking. One attempt to separate these two is the Locater Identifier Separation Protocol, or LISP. Dino Farinacci is the inventor of LISP.

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ILNP: Saleem Bhatti

Mirjam Kühne

Mobility problems in networks did not arise with the data center fabric and virtualized load. ILNP was designed to support mobility in IP networks on a campus or global scale.

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Backplanes: Kenneth Duda

Mirjam Kühne

Many different kinds of backplanes have been used to connect line cards and other components in network devices like routers, switches, and firewalls. The original custom-designed busses gave way to plain Ethernet busses, then to crossbars and Clos fabrics. Along the way more exotic designs, such a…

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Backpack: Yuval Bachar

Mirjam Kühne

The concept of disaggregation could not be taken seriously before the rise of merchant silicon. Yuval Bachar designed the Backback, one of the first "white box" routers in the world.

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Silicon Switching Engine: Tony Li

Mirjam Kühne

Software switching on general purpose processors was the rule in early networks; in fact, one of the original differences between a router and a switch was whether packets were switched in hardware or software. In this recording, Tony Li discusses the first hardware switching router, the SSE, which…

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Divergence of Routing and Compute: Dinesh Dutt

Mirjam Kühne

In many ways, routers and switches are just special purpose computing platforms. How did they come to be considered completely different kinds of devices? Dinesh Dutt joins the history of networking to explain.

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