In 1992, SDSC received an NSF award ``Interagency ATM Connection at the San Diego Supercomputer Center'' to collaborate with DOE and NASA to explore the suitability of ATM technologies for building and operating interagency networks. Network implementation of the ATM DOE/ESnet testbed started in February 1995, and we are now revising the workscope to reflect the evolution of the NSFNET to its new architecture.