Abstract: Private WANs are increasingly important to the operation of enterprises, telecoms, and cloud providers. For example, B4, Google’s private software-defined WAN, is larger and growing faster than our connectivity to the public Internet. In this paper, we present a five-year evolution of B4. We describe the techniques employed to incrementally move from best-effort content-copy network to carrier-grade availability, while concurrently scaling up bandwidth to accommodate 100x more traffic. Bio: Shiyu Liang (nickname: Jeffrey), has been working for Google since 2015.  While at Google, Jeffrey has worked for several different groups related to software defined network. Currently, Jeffrey works for Google Cloud Network Infrastructure (a.k.a. NetInfra).  Jeffrey graduated from UCLA CS Department (Masters Degree), advised by Prof. Jens Palsberg.

Hosted by Professor John Cho