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Technical Approach
The EXPERT platform now contains 14 ATM switches, ATM/N-ISDN and ATM/Frame Relay interworking units, medium adapters to enable cells to be transported over PDH transmission systems, the support of 2 Mbit/s circuit emulation, terminal adapters for the attachment of standard workstations, PCs, TV and video equipment (including 3-D), CD-audio and N-ISDN terminals. Current versions of ITU-T and ATM Forum signalling schemes are also installed, and will be upgraded during the lifetime of the project. ATM access equipment (including an ATM Passive Optical Network) and an integrated services switch have been developed within the project and recently integrated into the platform. New interworking capabilities to mobile networks, will be contributed by projects with which EXPERT is collaborating.
Multimedia applications and sophisticated traffic generation and analysis equipment (including a new network performance evaluation tool) will be used to demonstrate the optimal integration and control of a wide variety of traffic sources.
Available Applications:
Summary of Trial
The collection of broadband facilities offered by EXPERT (applications, terminal equipment, ATM switches, signalling capabilities and network interworking units) is unique in Europe. The EXPERT project will therefore provide the platform for a number of trials to be performed by other ACTS projects in the fields of mobile, multimedia (in the Finnish Multimedia Programme), charging and signalling for ATM, telecommunication and CATV network integration, tele-learning and TMN aspects.
Own project developments will enable trials of cost-effective ATM access and multi-service integration to take place. With the development of a new network performance evaluation tool the project is also validating traffic engineering aspects for optimising the utilisation of broadband network resources.
Through the involvement of common partners, EXPERT expects to make joint trials with the Swiss, Dutch, Finnish, UK, Danish and Norwegian National Hosts. EXPERT is currently taking part in the G7/GIBN application trial for »Virtual Classrooms« in conjunction with similar broadband facilities of the CANARIE testbeds in Canada.
Successful trials for the distribution of large data files, collected by satellite, to sites in Europe have also already been carried out with the DGXII Centre for Earth Observation; further trials are expected.
The EXPERT Platform
Key Issues
Expected Impact
By providing an well-organised substantial platform for the purpose of making Operation Trials within Europe and abroad, EXPERT contributes significantly to the ACTS Programme. Its own hardware and software developments are in areas which are critical in order to turn ATM technology into commercial services. The many issues surrounding the exploitation of statistical multiplexing are also being evaluated in EXPERT to give PNOs vital information for the dimensioning of networks and users confidence that requested QoS can be maintained.
Contact:
Martin Potts ASPA Berner Technopark, Morgenstrasse 129 3018 Berne Switzerland Tel: +41 31 999 42 80 Fax: +41 31 999 34 22 E-mail: potts@tech.ascom.ch
List of Domains and Chains
HS Networking Domain
Network Interworking Chains
List of participants