AGAVE: A liGhtweight Approach for Viable End-to-end IP-based QoS Services



About AGAVE:












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AGAVE's key objective is to develop an approach for open end-to-end service provisioning in order to support added-value IP-based services. The focus of the project is on the core networks of the Internet, and "end-to-end" means across these core networks. Quality of service, reliability and availability will be enabled through different Network Planes within domains, whose interconnection will form global Parallel Internets that will support the needs of well-defined services, with VoIP being a key service. Specific sub-objectives are to:

  • Identify a representative set of services and associated quality and reliability requirements to drive the parallel Network Planes, e.g. VoIP, video-conferencing and streaming, VoD and VPNs.

  • Specify a business model for the stakeholders - including customers, SPs and INPs - identifying relevant open interactions, i.e. SLSs required, between SP-INP for service provisioning, INP-INP for end-to-end network provisioning and SP-SP for end-to-end service provisioning.

  • Identify the requirements and design an open interface to allow IP added-value service software to interact with the underlying network resources for service operation, opening up INP networks in order to foster an added-value IP-based service market.

  • Develop a reference architecture for the planning, provisioning and control of QoS-enabled networks that support parallel planes for service separation, focusing on an approach that can be easily deployed, operated and managed.

  • Investigate a number of approaches for parallel plane separation to support QoS-aware networking, relying principally on differentiated routing, with differentiated forwarding mainly in access links. Options include multi-topology IGPs for relatively soft guarantees, MPLS TE LSPs for stricter guarantees and LSPs with bandwidth reservations for very strict guarantees.

  • Investigate the inter-domain extension of these planes to form Parallel Internets and the inter-connection of non-adjacent QoS-enabled domains for contiguous support of end-to-end services.

  • Investigate how to select and control optimal inter-domain paths, considering improvements and extensions to BGP and cooperative traffic engineering mechanisms between domains. Consider MPLS LSPs and IPv4/IPv6 tunnels to realise those paths.

  • Devise intra- and inter-domain traffic engineering approaches for the coexistence of the Network Planes and Parallel Internets respectively, considering load sharing, resilience and scalability.

  • Evaluate and validate the overall approach, architecture, algorithms and protocols through simulation studies to assess performance and scalability and through testbed prototypes for proof-of-concept implementation.

  • Benefit from the key position of some AGAVE partners in the IETF, ETSI, ITU-T and IPsphere Forum to contribute project results to these bodies and also to publicise them in international conferences and journals and participate in consensus forming activities in the context of the FP6 IST programme.

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Page updated by David Griffin June 2008