In
total, 3 phases were planned in VITAL, each phase lasting a year.
VITALv3 has included new features, new subsystems, new reference
points, new components and modifications to the VITALv1/VITALv2
components. VITALv3 is composed of the Access Session Control
Subsystem, Service Session Control Subsystem, Subscription Management
Subsystem, Discrete Terminal Mobility Subsystem, Connection Management
Subsystem, Resource Configuration Management Subsystem, Fault
Management Subsystem.
Media Lab of NTUA has been involved in VITALv3 phase of the project.
Its effort in WP1 of Vitalv3 is dealing with the specification and
implementation of the Access Session Control Subsystem Chat and the
Shared Whiteboard Application for the Teletraining Service. More
specifically, the role of Media Lab in this work package, is to
contribute to the enhancement of the existing software and hardware and
the development of new software and Graphical User Interfaces (GUIs)
for the chat and teletraining applications, in order to support
teleconference facilities inside the university campus.
In WP2 of VITALv3 Media Lab has contributed to the description of the
Fault Management System including the information models, the
computational models and the interface specification of the Fault
Management components. Fault Management Subsystem is part of the TINA
Network Resource Architecture and provide means to detect, locate and
correct abnormal behaviour of the components in the TINA connection
management (LNC-ATM, NML-CP, EML-CP and RA). It is composed of the
Testing/Diagnostic Server (TDS), the Alarm Manager (AlarmM) and Fault
Co-ordinator (FC). This subsystem use the DPE service Notification
Server to handle the alarms. NTUA is specifically interested in
studying and applying the TINA supporting technologies in the
detection, localization and correction of abnormal behaviour of
telecommunication networks and their environments.