PCIe is a natural platform to provide converged connectivity inside an enterprise or cloud data center. Virtually all devices including host, communication, memory, special-purpose ASIC, and FPGA chips have a direct connection to the mainstream PCIe interconnect technology, and many have multiple connections.
The challenge to achieving PCIe-enabled rack-level connectivity is two-fold. First is extending the PCIe architecture to allow true fabric capability, while still remaining 100 percent consistent with the specification. The second is designing and deploying a switch that can integrate the necessary functions within a reasonable power and cost envelope, and in a reasonable time-frame.
Regula s presentation describes such a switch. It explains the architectural enhancements developed to allow PCIe usage at the rack or mini-cluster level in the data center.
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