Service hub
One service in the middle, the services it talks to around it. Tiny packets run along each spoke, out at a speed set by requests per minute and back at a speed set by latency; hover or focus a service and its link speeds up, the others calm down, and the line below reads that service's latency and traffic.
Service hub is part of Pro.
Get Pro to try it live and copy its code, along with every other element in the library.