LONG - Laboratories over Next Generation NetworksLONG (IST-1999-20393) is an European project funded by the IST programme LONG. It aims to foresee and solve problems related to the design, configuration and deployment of Next Generation Telecommunication networks specially when new services and applications are carried out across them. The new version of the IP protocol, IPv6, will become an integral part of these Next Generation networks. In addition to this, the proliferation of new high bandwidth and asymmetric access technologies, like ADSL and CATV, will also shape the network design of these Next Generation Networks.
On the other side, applications must be aware of the advanced services provided by the networks and protocols, and must take into account the impact of the underlying network. LONG aims at gaining an in-depth knowledge in the design and deployment of IPv4/IPv6 transition scenarios, as well as in the operational inter-working when heterogeneous access (ADSL, CATV, ISDN) and transport (IP/ATM, IP/SDH, IP/WDM) technologies are in place. The integration of IPv6 with advanced network services, such as multi-homing will be validated in LONG.
On the other hand, LONG focuses on extending the framework of applications, so that they benefit from the services provided by these Next Generation networks.
In order to achieve these goals, LONG faces the following objectives:
Technical ApproachThe LONG objectives will be fulfilled by a set of distinct Workpackages.
Network Design and Deployment will ensure that a high performance testbed is in place. The testbed will connect the partners using the pan European research network infrastructure and will incorporate IPv4/IPv6 migration scenarios and advanced services like QoS, multi-homing, multicast, mobility or security. LONG will identify and select the mechanisms to provide these scenarios and services. The incorporation of a mixture of different access (ADSL, CATV, ISDN) and transport technologies (IP/ATM, IP/SDH, IP/WDM) will be one of the design goals. Collaborative Work Environment will adapt and validate representative applications to the next generation network scenarios, e.g. ISABEL, standard services, MBONE applications, etc. The interoperability with the IPv4 versions will be preserved.
IPv6 is being seriously considered as a real fact for Next Generation Networks, which are going to be
developed. It includes some new advanced mechanisms such as autoconfiguration, security, QoS, better
multicast support and mobility. The main point is that every IPv6 node has these
mechanisms ready to activate by default, so that developing such services will be easier and more cost
effective since no additional software needs to be installed in any node.
One of the applications, which are going to be migrated to IPv6, is ISABEL (http://isabel.dit.upm.es) which is a tele-conference and tele-meeting application which has been successfully used with IPv4. The idea is not only to adapt the application but study how these real time applications can be improved with the advanced IPv6 properties.
Once ISABEL is migrated to IPv6, LONG participants expect not only to do internal project tests and tele-meetings but also to distribute public events to some sites not participating in the LONG project (from other IST project members for instance).