1Contents A brief problem statement NCP in the GEYSERS architectural layeringNCP main challengesNCP major innovationsAny-IT + Network Service conceptEnergy-efficiencyAchieving the GMPLS+/PCE+ NCPMain work itemsStarting points of workPlanned delivery of the major resultsExpected impact on SDOs
2NCP problem statementGrids, cloud computing and SOAs at large rely on a vital commodity: the networkAn ever-increasing number of distributed [super-]computing applicationsHighly-demanding requirements for dynamicity and flexibility in Net + IT resource control (e.g. automated scaling up/down)…but their network service(s) still treated as “always-on”Application layer unable to exploit the automatic control potentialities of the current optical (and not-optical) network technologiesIT resources dynamics completely uncorrelated from the network onesCommon trend to over-provision network services inefficient resource utilization in the network, above all in case of fault recovery
3NCP problem statement (cont’d) [DEMAND] More and more massive utilisation of these Net+IT services by end-users[OFFER] A rapid migration from telecommunication networks to global communication infrastructuresNetwork infrastructureComputing/storage elements (IT)Software and tools to control, monitor and manage the Net+IT servicesOften virtually composed on top of incumbent providers… and with a “revolution” in actors’ roles and responsibilities along the value-chainInfrastructure providers, network operators, virtual network operators,Service/Content providers, Over the Top (OTTs), etc.
4GEYSERS reference model RolesApplicationApplication InterfaceApp/Service ProvidersGMPLS+/PCE+Network Control Plane (Extended ASON/GMPLS and PCE Control Plane)(virtual)NetworkOperatorsLogical Infrastructure Composition LayerExplain all the concepts regarding diferent question:Partitioning, multiplexing, SLA, energy efficiency, LICL, GMPLS +, PCE +,a Holistic apporach that allow telco operators to go a to a new business modelNetwork operators will not only operate networks, but IT reosurces, so they need from the integrated frameworkdefine storyboard (doc word)Answer most of the quesitons inderectly by using this picturedefine diferent types of usersThe novelty in the GEYSER architecture lies in the following two layers: the Logical Infrastructure Composition Layer (LICL) and the Network Control Plane (NCP) layer. Under this architecture, several independent logical infrastructures can co-exist; isolated, yet sharing the same physical layer.Logical Infrastructure Composition Layer: This layer allows/supports the partitioning of the physical infrastructure, including both Optical Network and IT resources. It utilizes a semantic resource description and information modelling mechanisms for hiding the technological details of the physical layer from network operators. Logical resources are represented seamlessly using a standard set of attributes which allows the Control Plane to overcome the network and technology segmentation. Partitioning provides a 1:N logical representation of a physical resource from one or multiple domains. The logical infrastructure layer allows for dynamic and consistent monitoring of the physical layer and binding/associating the right security and access control policies. Furthermore, this layer constitutes application specific logical infrastructures by interconnecting the logical resources based on applications’ requirements.Network Control Plane: This layer is proposed as an extension of ASON/GMPLS and PCE, both in terms of architectural elements and protocol objects/procedures. The NCP layer is responsible for mapping applications requirements and control/management of the logical infrastructure composed by the LICL, seen and controlled just as a physical infrastructure. Each logical infrastructure can include both network and IT resources, and is controlled by a single instance of an NCP. The NCP is in charge of dynamic provisioning, monitoring and recovery functions. The main targeted features of the NCP layer are listed in the related objective in the previous section; these technical objectives will drive the specification of the NCP architecture and its prototype development.As part of its architecture, GEYSER will define the workflow that provides full interoperability and interaction between infrastructure providers and network operators (with its application service requirements) for planning, provisioning and accessing network and IT resources.The GEYSER architecture is also backward compatible and it is able to interact with its standard neighbouring domains at two levels:Transit level: where the GEYSER Network Control Plane can interact with control and management of neighbouring domains to request or provide resources (e.g. transient bandwidth).Hybrid infrastructure level, where the GEYSER Logical Infrastructure Composition Layer can interact with its neighbouring infrastructure domains to compose a logical infrastructure with the help of neighbouring infrastructures in offering their resources as a service.Infrastructure ProvidersNetwork InfrastructureIT InfrastructureResourcesIT: storage, computingIT: storage, computingoptical infrastructure4
5NIPS: Network+IT Provisioning Service Beyond a UNI, towards a App-to-Net i/fGeneralized semantics to describethe functional characteristics of both IT sites and NEs (exported from LICL)i.e. resource types, capabilities and availabilitiesE.g. sites, attached services, capabilities and capacities of network, computing and storage elements, etc.also the non-functional service characteristicsWorkflow descriptionsInteraction propertiesService Level AgreementsPricing/charging modelsetc.a service that allows the provisioning of network and IT resources in a single-step, through a set of seamlessly integrated procedures
6Planned features Provide a single reference point for the Application layer (Network+IT Provisioning Service interface – NIPS)[downward] e2e dynamic (advance) reservations with differentiated service guarantees (QoS but also resiliency) on a per-user/service basis[upward] Reporting SLA fulfilment for subsequent workflow adjustmentsCapability of dynamic e2e resource composition of Net + IT resources“One-step” Net+IT resource reservationScheduled/advance reservation (various degrees from fully distributed to centralized)Trusted mechanisms for accessing resourcesCoordinated recovery strategies for an overall service resiliency
7Planned features Supporting new connection paradigms, i.e. beyond p2passisted unicast (i.e. network quotations about performance and prices of <src, dst> pairs)restricted anycast (i.e. with a set of equivalent dst in which NCP+ will pick the best one)full anycast (i.e. dst choice totally delegated to NCP)Coordinated service provisioning and maintenance through the LICLDynamic provisioning, monitoring and recovery functionsLogical infrastructure re-planning based on TE considerations, network & SLA fulfilment benchmarkingBackward compatibility and interoperability with std GMPLS and PCEASON/GMPLS (by ITU-T and IETF CCAMP WG)PCE (by IETF PCE WG)UNI and E-NNI interfaces (by OIF + possible influences from OGF NSI WG)
9NCP major innovations AAA for net+IT provisioning services GEYSERS enhanced NCPApplication dynamics and granularity at the user-network interface(NIPS)Extended communication paradigmsassisted unicastrestricted anycastfull anycastNew service composition dynamics at the SOA layerBoD services planned + provisioned by the NCP but optionally hocked to the NMS decision flowCross-layer service monitoring and escalation of recovery proceduresScheduled BoD services handled by the NCP in a distributed/federated wayEnergy-efficient network + IT resource routing and provisioning
10Main work items for GMPLS+/PCE+ @Routing plane [GMPLS+/PCE+]Protocol extensions for Net+IT resource advertisementsNIPS route computationProcedures for inter-domain NIPS routing@Signalling plane [GMPLS+]Protocol extensions for Net+IT resource reservationsProcedures for seamless NIPS signallingProcedures for coordinated inter-layer recovery and escalationsNIPS interface specificationTo let end-user apps or the brokering/scheduling entities on the Enterprise Service Bus (ESB) stimulate the GMPLS+ NCP
11Reference specs and architectures ASON/GMPLS core specsITU-T SG15 work on ASON and Transport EthernetOIF for ASON Network Interfaces (UNI, E-NNI sig+rout.)IEFT RFCs & I-Ds forsignalling (G.RSVP-TE)routing (G.OSPF-TE)recovery mechanismssupport for multiple switching technologies (MRN/MLN)PCE architecture and inter-PCE commsOASIS SOA application requirements and frameworkOGF: NSI, OCCI?
12Expected impacts on SDOs e.g. by contributing toNSI-WGTentative ISOD WG
14Energy-data awareness and crunching Energy efficient approachLogical Infrastructure Composition LayerPartitioning and VirtualizationStatistically sharing of resourcesResource usage optimizationright-size infrastructureEnergy-awareSchedulingAllocationMinimize the number of concurrent powered on resourcespower down unused infrastructureExtended Control PlaneEnergy-aware Routing (GMPLS+/PCE+)Power consumption ON + IT (metadata info) disseminationcreate awarenessEnergy efficient Routing and provisioningprefer energy efficient resourcesPromote Optical networkingConsiderable energy saving compare to IP routerstraffic mapping on hybrid networks
15Starting point of work: prototyping & testing A number of existing platforms to be extended/usedFor GMPLS+/PCE+ (protocol stacks in Linux controllers)For std GMPLS/PCE (protocol stacks embedded in optical nodes)… and a solid R&D test-beds background from the teamTelco SME: Nextworks (NCP WP Lead)Telco manufacturers: ADVA, Alcatel-Lucent ItalyPan-European Carriers: InterouteService Providers: SAP AGTelecom Operators & NREN: Telefonica I+D, Polish PTT, PSNCUniversities and Research Centers: i2CAT, Univ. Essex, Univ. Amsterdam, Athens Information Technology, Tech. Univ. Braunschweig, IBBT1515
16Planned delivery of the major results [Q1-2011] GMPLS+/PCE+ architecture (high/low level)[Q1-2012] First prototypes for testbed integration and validations[Q3-2012] Final prototype releases