Harvard has 6-gigabit connections to both Tier 1 Internet providers and Internet2. Between 10 and 20 terabytes of data moves across Harvards border every day. Despite this complexity, Harvard manages to categorize and record information about practically every packet crossing its borders. Harvard has built a dedicated monitoring system that takes all critical traffic, makes a copy of every packet and sends those copies to the network surveillance center. The Harvard Network Operations Center has a database with between 1,500 and 2,000 registered system and network managers.”]
Source: https://www.csoonline.com/article/2121838/network-surveillance–watching-the-wires.html