Evolution of the DISN-Pacific towards an integrated ATM infrastructure

The Defense Information Systems Agency (DISA) is currently upgrading the Defense Information System Network (DISN) in the Pacific into an operational wide area network service based on asynchronous transfer mode (ATM) technology. The fielding of ATM technology in the DISN-Pacific will adhere to DISA established system specifications, which are based on the ATM Forum and ITU-T standards. The transition to ATM will provide high bandwidth information transfer for all of the day-to-day business transactions for DOD users. The DISN-Pacific transition to an integrated ATM infrastructure is scheduled to be completed in three defined phases: near-term, mid-term, and far-term. Each phase will encompass a series of discrete steps or enhancements that together will form a single, integrated infrastructure of systems and services. This paper provides information on the progress of planned activities for realizing the transition of the DISN-Pacific into an integrated infrastructure that will contribute to the end goal of a worldwide ATM network across DISN