{"id":161359,"date":"2011-04-27T00:00:00","date_gmt":"2011-04-27T00:00:00","guid":{"rendered":"https:\/\/newed.any0.dpdns.org\/en-us\/research\/msr-research-item\/the-data-center-network-l1-switch-protocol\/"},"modified":"2018-10-16T20:12:19","modified_gmt":"2018-10-17T03:12:19","slug":"the-data-center-network-l1-switch-protocol","status":"publish","type":"msr-research-item","link":"https:\/\/newed.any0.dpdns.org\/en-us\/research\/publication\/the-data-center-network-l1-switch-protocol\/","title":{"rendered":"The Data Center Network L1 Switch Protocol"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Chuck Thacker et al. have proposed a data center network design using FPGAs to implement the switching infrastructure. Inside each switch, the design uses time slot circuit switching of data cells via a distributed crossbar in the data plane and best effort forwarding of control messages via a high-speed ring in the control plane. The goal is to produce a system with minimum total complexity. Existing networks are extremely complex, have many different failure modes, and are difficult to scale out to the size of a large data center.<\/p>\n<p>The design fits in the context of a data center built in shipping containers. Each container holds a large number of servers and L0 switches, and holds two, top-level L1 switches, called A and B. Cables are run between all the containers to form a complete interconnection graph of the A L1 switches and likewise for the B L1 switches.<\/p>\n<p>This paper presents a TLA+ specification of the L1 switch infrastructure.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chuck Thacker et al. have proposed a data center network design using FPGAs to implement the switching infrastructure. Inside each switch, the design uses time slot circuit switching of data cells via a distributed crossbar in the data plane and best effort forwarding of control messages via a high-speed ring in the control plane. 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