Aaron Gember-Jacobson, Computer Science Department, will present. Computer networks are essential infrastructure, especially in the midst of a pandemic. Unfortunately, computer networks are also fragile and prone to misconfiguration, as demonstrated by the campus network outage on March 24. My research focuses on designing systems for detecting and correcting misconfigurations before problems manifest. In this talk, I'll discuss the spectrum of systems that have been developed to mitigate network misconfigurations, and illustrate why systems that automatically "repair" configurations are often the most useful. I'll also discuss how these repair systems combine ideas from different areas of computer science to successfully address the challenges imposed by the scale and complexity of network configurations.