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HS Networking Domain
Network Interworking Chains

Platform for Engineering Research and Trials

Main Objective
EXPERT is enhancing the RACE II testbeds of EXPLOIT and TRIBUNE with new ATM access equipment, including an ATM Passive Optical Network and an integrated service CPN switch, making it even more representative of a future broadband network. The platform is being used to determine critical factors in ensuring integral ATM network performance, i.e. the integration of different service types (real-time and non real-time) and their control to ensure the maintenance of end-to-end QoS. A major role of the platform is also the support of the ACTS Programme, through the participation in European and inter-continental trials and the hosting of other ACTS projects in order that they can fulfil their objectives.

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.

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The EXPERT Platform

Key Issues

Achievements
EXPERT is already validating and demonstrating the ability to maintain end-to-end QoS in a mixed (real-time and non real-time) environment (including ABR) through the implementation of a range of integrated traffic control functions including signalling, Connection Admission Control, Usage Parameter Control, routing mechanisms and resource management schemes.
The platform is already being used as the basis for several ACTS projects to validate their own results, and also to facilitate inter-Programme, international and inter-continental trials.
The platform with its wide variety of broadband equipment, also serves as a practical showcase for the ACTS Programme as a whole.

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:
					(email removed)
				

List of Domains and Chains
HS Networking Domain
Network Interworking Chains

List of participants

CH
Association Swiss Telecom PTT/Ascom
CH
Alcatel STR
B
Alcatel Bell
CH
Ascom Tech
D
Deutsche Telekom
CH
Ecole Polytechnique de Lausanne
SF
Helsinki Telephone Company
GR
Intracom SA Hellenic Communications
I
Italtel
F
Laboratoire d´Electronique de Philips
IRL
Lake Communications
NL
Lucent Technologies
D
Mikroelektronik Anwendungszentrum Hamburg
GR
National Technical University of Athens
SF
Nokia
UK
Queen Mary and Westfield College
NL
Royal PTT Nederland KPN Research
F
Simulog
RO
Technical University of Cluj Napoca
D
Technical University of Dresden
DK
Tele Danmark
E
Telefonica de Espana
N
Telenor Research and Development
IRL
Teltec
E
Universitat Politecnica de Catalunya
B
University of Antwerp
B
University of Ghent
D
University of Stuttgart

DCSIMG