Internet/telecommunications convergence and the
fact that IP is becoming the ubiquitous multi-service delivery platform
is leading to the separation of service and network concerns, with
distinct roles of Service Provider (SP) and IP Network Provider
(INP). SPs have started to deploy added-value services in addition
to plain Internet access. Given the best-effort nature of the Internet
and the current lack of inter-domain QoS, providing such demanding
services over multiple administrative domains is difficult. This
is of immediate concern to telcos who are in the process of migrating
traditional telephony services to VoIP. AGAVE aims at solving the
problem of end-to-end service provisioning over IP networks by studying,
developing, and validating a new inter-domain architecture based
on Network Planes that will allow multiple INPs to provide Parallel
Internets tailored to service requirements.
AGAVE will specify an open connectivity service
provisioning interface to allow SPs to interact with underlying
INP network resources for the provision of end-to-end IP-based added-value
services. The project will investigate a range of Traffic Engineering
techniques to realise Network Planes and Parallel Internets, depending
on service requirements and the capabilities of transit domains.
A lightweight QoS approach will be developed, based on the principles
of differentiated routing with inherent load balancing and resilience,
without requiring universal deployment of differentiated forwarding.
The proposed solution will be deployable with small incremental
additions to the existing best-effort Internet.
The validity and performance of the proposed architecture
will be evaluated through simulations and prototype implementations
of the developed approaches and protocols. The project will actively
contribute to standardisation activities in this area, most notably
to the IETF and the IPsphere Forum.