ATMOS (ATM OPTICAL SWITCHING) - SYSTEM PERSPECTIVE

The expected traffic growth from new broadband services will require n etwork capacities that can be beneficially provided by optical WDM tra nsport networks. Optical packet techniques are essential for large net works to provide flexibility and granularity. A layered network archit ecture with a transparent optical layer and optical packet layers has been elaborated. Four switching concept options for large optical ATM switch fabrics in the public network and small access nodes are presen ted. The technology for the related key functions of space and wavelen gth switching was developed in the RACE ATMOS project and the feasibil ity of concepts and technologies was verified in four system demonstra tors.