As part of the CC* grant we are monitoring both on and off campus network performance using perfSONAR.
Here are three links for real time network performance.
At Colby: https://gw-213.pfsnr.colby.edu/toolkit/
At UNH Research group http://perf-rcc.unh.edu/toolkit
The northeast research network monitoring can be found at:
with more explicit (tables of numbers) information on our hosts at:
The old way to check on system performance is at http://schupflab.colby.edu/mrtg (including nscc loads and much, much more)