Scalable, High Speed Time Synchronization (D012) New ideas Dynamic peer discovery using engineered multicast schemes Automatic, authenticated peer selection for ubiquitous distributed protocols Multiple overlapping hierarchical subtree organization for redundancy and diversity Maximize service performance relative to crafted metric and constraints S1 S2 S1 S1 S2 S1 S2 * * S2 S2 S2 Clients Clients S1 S2 S1 S2 S1 S2 * * * S2 S2 S2 Clients * to buddy (S2) Impact Minimize dependence on prior configuration data Avoid intricate case-by-case analysis of failure/fallback/recovery scenarios Provide automatic reconfiguration in case of network reconfiguration or failure Schedule (third year) Test and refine NTP autokey authentication scheme Test and refine NTP autoconfigure scheme Complete NTPv4 beta test and deploy University of Delaware: David L. Mills 17-Jan-19