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Data centers are being built around the world to meet the exponentially increasing demands for cloud computing. The same increasing demands drive the networking speed increase from 10Gb/s to 100Gb/s or higher and the e2e latency reduction from milliseconds to microseconds. The traditional software-based TCP/IP, however, cannot keep up with the increasing demand. Consequently, RDMA (Remote Direct Memory Access), once introduced in HPC, now is experiencing a renaissance in Ethernet-based data centers, at a much larger scale. In this talk, we will discuss the safety and performance challenges, including the RDMA transport livelock, PFC deadlock, PFC pause frame storm, and many others that we have encountered in making RDMA deployable and manageable at scale, and the solutions that we have devised to address these challenges. We will also explore the new role that RDMA will play in a more heterogeneous system and networking infrastructure for the new era of machine learning.

Bio

Chuanxiong Guo is a Principal Researcher at Microsoft Research Redmond. Before that he was a Principal Software Engineering Manager at Microsoft Azure. He was a Senior Researcher at Microsoft Research Asia before he joined Microsoft Azure. His areas of interest include networked systems at large-scale, data center networking, cloud computing, systems availability and troubleshooting. He is currently working on RDMA support for large-scale deep-learning systems.

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The scope of 5G goes significantly beyond simply radio improvements. Embodied in 5G is a service architecture that incorporates concepts from SDN and NFV to enable mobile broadband to address new and demanding verticals. Ultimately the breadth of the 5G initiative will consume much of what ICT has to offer. This will ultimately expand the nature, utility and societal worth of radio connectivity in all dimensions.

This talk explores some of the technologies in 5G with a focus on how they will be combined to achieve information transfer and processing at the sort of scale required for the next generation of mobile broadband.

Bio

David Allan is a Distinguished Engineer at Ericsson, and a former distinguished member of technical staff at Nortel. He has been active in data telecommunications standards for over 20 years as a contributor and innovator; having some 80 patents in the field. He has been active for over 35 years as an architect, design engineer, and developer of real-time systems in diverse areas of technology ranging from process control and avionics to financial transaction processing. His current role at Ericsson is focused on 5G, and the evolution of fixed access. He also has a tendency to dabble in all aspects of telecommunications.

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