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Interoperable Intelligent Optical Networking: Key to future network services and applications

Interoperability: Key issue for carriers and ISPs. Interoperable Intelligent Optical Networking: Key to future network services and applications. OIF Carrier Group. Carrier Participation. OIF Carrier Involvement. Carrier’s integral members of OIF: OIF Carrier Working Group

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Interoperable Intelligent Optical Networking: Key to future network services and applications

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  1. Interoperability: Key issue for carriers and ISPs Interoperable Intelligent Optical Networking: Key to future network services and applications OIF Carrier Group

  2. Carrier Participation

  3. OIF Carrier Involvement • Carrier’s integral members of OIF: OIF Carrier Working Group • Established in 2001 with charter to develop requirements and guidelines for services and functions to be supported by future optical networking products • Guiding OIF work to address pressing issues within carrier networks • Providing detailed requirements for developing specifications • Carrier participation in other working groups • Ensuring that technical solutions being developed address network and service requirements • Contributing to technical solutions and interoperability agreements

  4. Intelligent Optical Network: Motivations • Scalability • Reduced carrier-specific management system development • Technology reuse • Distributed intelligence (control plane) • Mesh topologies • Dynamic network reconfigurability • Network is “database” • New service enabler • Reduced capital expenditure – mesh restoration • Reduced inventory and dependence on forecasts • Improved customer service: reduced provisioning times • Reduced management system development costs • Accurate, real-time state information • Bandwidth on Demand • Optical VPNs • Scheduled connections

  5. Manchester connection provisioned Intelligent Optical (Transport) Networks Seattle Portland Minneapolis Cambridge Detroit NYC Salt LakeCity Phil Wash.DC Chicago San Francisco Denver Newark Kansas City St Louis Raleigh Los Angeles San Diego Phoenix Atlanta Dallas Austin Orlando Houston Intelligent Optical Network Element Tampa Transport link Ft. Lauderdale

  6. Service Provider A Admin Domain Service Provider B Admin Domain I-NNI Control Plane Interfaces User Domain A (OIF UNI 1.0 & 2.0) Inter-carrier External Network Network Interface (E-NNI) User Domain Z UNI User to Network Interface (UNI) (OIF UNI 1.0 & 2.0) Service provider 1 Intra-carrier External Network Network Interface (E-NNI) (OIF NNI 1.0) E-NNI Domain A1 Domain A2 I-NNI I-NNI Internal-Network Network Interface (I-NNI)

  7. OIF Interoperability Agreements • OIF develops interoperability agreements and manages interoperability testing: • Physical Link Layer • Networking • Networking agreements focused on UNI and intra-carrier E-NNI • UNI 1.0 interoperability agreement finalized November 2001 • Interoperability event staged Supercomm 2001 and OFC 2003 • UNI 2.0 interoperability agreement in progress • NNI 1.0 interoperability agreement in progress • Capabilities demonstrated in early interoperability event OFC 2003

  8. Network-to-Network Interface (NNI) • NNI: interworking between “control domains” to provide: • Summarized topology and reachability information across domains • Signaling for connection establishment, removal and restoration • Immediate NNI applications: • Interworking between (already deployed) proprietary control planes • Scalability • Interworking different transport network technologies • E.g., all-optical and opto-electronic • NNI 1.0 is scoped to intra-carrier E-NNI

  9. Dissimilar control issues • Different vendors • Multiple profit centers NNI Intra-Carrier NNIMetro-Core Example • Different metro / core domains • Different economics • Different services Intercity Metro Metro Customers

  10. Optical User to Network Interface(O-UNI) • O-UNI: allows clients (e.g., IP routers) to dynamically request bandwidth from the intelligent optical network • Signaling for connection establishment, modification, deletion and query • No topology information exchanged between IP and optical network • Potential UNI applications: • Reduced operations overheads – simplified provisioning of new IP router connectivity • New services: bandwidth on demand, optical Virtual Private Networks (VPNs) • Integrated IP and optical failure recovery mechanisms

  11. Connection request O-UNI Optical Network UNI • Client requests new connection between client source and client destination • Client sees optical network as a “cloud” • Optical network responsible for routing connection to client destination

  12. Conclusions • Intelligent optical networking is a reality • Large scale network deployments • End-to-end provisioning • Implementation agreements and standards are critical to future intelligent optical networks • Network-to-Network Interface (NNI) • Optical User to Network Interface (UNI) • Carrier participation ensures that developing implementation agreements and standards meet network and service requirements

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