The Free On-line Dictionary of Computing (30 December 2018):

Active Measurement Project

    (AMP) An NLANR project
   undertaking site-to-site measurement across the HPC
   networks.  This work is intended to compliment the
   measurements taken by MCI and Abilene within the networks'
   infrastructure.  Currently round trip times, topology, and
   packet loss are being measured.

   (2004-01-18)