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Olivier Jahreis - Nokia Siemens Networks - High Capacity DWDM Systems

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Broadband World Forum 2011 - Olivier Jahreis - Nokia Siemens Networks - High Capacity DWDM Systems

Broadband World Forum 2011 - Olivier Jahreis - Nokia Siemens Networks - High Capacity DWDM Systems

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  • 1. Nokia Siemens NetworksHigh Capacity DWDM Systemsfor Converged Packet OpticalOliver JahreisHead of Product Management DWDM1 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 2. Outline Converged Optical Packet – Metro network architectures Converged Optical Packet – Core network architectures Product requirements Converged switching and transmission Flexibility on WDM layer High capacity networking Control plane convergence2 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 3. High capacity backhauling for mobile networks Access Aggregation to SAE-GW 2G/3G/LTE BSC RNC 2G/3G/LTE WDM transport for any NGM, Ethernet or IP network Application: Pros & Cons: Evolution: • Capacity expansion of any + unlimited capacity – WDM • Operate TDM systems till fibre based network removes scalability end-of-life, then migrate to • Co-existence of legacy and constraints when moving to packet-only aggregation packet transport networks LTE + lowest latency through optical signal processing3 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 4. High capacity backhauling for residential access Access Aggregation Core Access networks migrate Optical to optical (NGOA) Network PON  NGOA DSL WDM transport for any access type traffic Application: Pros & Cons: Evolution: • Video applications cause + unlimited capacity – WDM • Convergence of access and strong bandwidth growth removes bandwidth bottle aggregation with Next • DSL and even more PON necks caused by bandwidth Generation Optical Access remove bottle necks in the hungry residential customers (NGOA) access4 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 5. Outline Converged Optical Packet – Metro network architectures Converged Optical Packet – Core network architectures Product requirements Converged switching and transmission Flexibility on WDM layer High capacity networking Control plane convergence5 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 6. Converged Core Packet Optical Network Architecture Mobile Backhaul Converged Packet Optical Core Network MME Packet Centric SAE-GW eNB Backhaul Network MWR BTS MWR Residential fixed Backhaul Packet Optical Transport Network: converged packet and TDM services integrated with WDM optical devices Next Gen. Optical Access IP Peering Enterprise services Packet Optical Transport Network Leased line services MPLS-TP / IP-MPLS Application: Advantages: Evolution: • Converged core for all traffic + unlimited capacity • Smooth transition to all- types + Packet and TDM services on packet networks • Traffic aggregation, one platform provisioning, and protection6 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 7. Outline Converged Optical Packet – Metro network architectures Converged Optical Packet – Core network architectures Product requirements Converged switching and transmission Flexibility on WDM layer High capacity networking Control plane convergence7 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 8. Converged switching and transmission – P-OTS Access Metro Core P-OTS applications Efficiency: • aggregation and grooming (ODU-x) UMTS, UMTS HSPA, LTE HSPA Capacity, and Filling • end-to-end multi-service MSPP the lambdas… provisioning ETH Voice TDM • Restoration with GMPLS OTN Voice • Multi-Domain networks (TCM, E- Leased Lines ETH NNI) Virtual Private Networks CET OTN P-OTS High-Speed High Speed ETH Internet Internet TDM OTN P-OTS - best suited IP TV IP TV DWDM • Transition from TDM to Video on Video on Ethernet (service-agnostic …and restoration, Demand Demand Services router bypass switch) • high scalability (multi Terabit) • Cost efficient bypass of routers The P-OTS switch feeds Metro traffic efficiently (OTN vs IP Router cost-per-bit) into core DWDM8 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 9. Outline Converged Optical Packet – Metro network architectures Converged Optical Packet – Core network architectures Product requirements Converged switching and transmission Flexibility on WDM layer High capacity networking Control plane convergence9 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 10. Flexible WDM layer with ROADM technology Colorless + Directionless + Contentionless Degree Degree Degree #1 #1 #1 Degree Degree Degree Degree Degree Degree #2 #3 #2 #3 #2 #3 Degree Degree Degree Degree Degree Degree #4 #5 #4 #5 #4 #5 add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop add/drop Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Transp. Bank Bank Bank Bank Bank Bank Bank Bank Bank Bank Bank Bank Bank Bank Bank Wavelength contention • Transponder can be • Transponder can be • Transponder can be remotely tuned to any remotely tuned to any remotely tuned to any wavelength wavelength and any wavelength and any • However transponder direction direction can only carry traffic in • However only one • Up to N wavelengths can be one predetermined wavelength per add/drop repeated per add/drop tree direction tree can be used at the time eliminating the wavelength e.g. wavelength blocking contention (wavelength contention)10 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 11. Power transients – a challenge for transparent opticalnetworksOptical power transients• impact surviving channels if other channels fail due to fiber or equipment outages• can propagate and increase along link Example: fiber cut or re-routing by control plane Transient builds up Multiple channels fail or are switched Issues, if transients are not controlled properly: Best case: Short error bursts (may impact protection paths if working fails). Typical impact: Outages while power control converges (may be minutes). Worst case: Permanent instability of power levels in network.11 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 12. Transient proof WDM system design Comprehensive set of measures: Standard Standard design amplifier • fast convergence of amplifier control amplifier design • End-to-end path control of channel Power excursion power levels Minimized power excursions Minimized power • High transient tolerance of line cards excursions with optimized with transient transient optimizedamplifiers amplifiers • Optional: control of total optical power per band  Network level control of optical power levels 0 5 10 15 20 time [ms]12 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 13. Outline Converged Optical Packet – Metro network architectures Converged Optical Packet – Core network architectures Product requirements Converged switching and transmission Flexibility on WDM layer High capacity networking Control plane convergence13 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 14. Superior coherent 40G and 100G technology Performance for Upgrade 40G100G • mature, high volume and cost optimized Non-coherent WDM NSN’s coherent WDM 40G available since several years • 100G becoming available in 2011, with fast cost competiveness (cost/bit) 2500km 2500km 2500km against 40G to be expected reach - 40% reach reach for for for • Coherent technology offers several 40G 1500km 40G 100G advantages reach for100G • Superior reach performance • Highest PMD tolerance • Simple, dispersion compensation PMD tolerance (DGD) free installation Coherent non-coherent 40G/100G 40G/100G Only coherent 40G/100G New fiber old Reference 10G technology secures the upgrade 100ps to 100G, and makes full use of 45ps the existing fiber base 10ps14 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 15. Outline Converged Optical Packet – Metro network architectures Converged Optical Packet – Core network architectures Product requirements Converged switching and transmission Flexibility on WDM layer High capacity networking Control plane convergence15 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 16. GMPLS value proposition Management Plane Mgmt Plane TED TED TED PCE PCE PCE Control Plane Control Plane Control Plane Layer3 Layer2 Layer1 Domain Domain Domain Point & click provisioning, Provisioning Automatic restoration signaling over control plane over multiple layers, over multiple layers and bandwidth on demand domains16 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 17. Summary • WDM removes capacity bottle-necks in mobile and fixed backhauling networks • WDM has lowest latency, needed for LTE backhauling • For core network, converged packet and OTN switches use WDM technology for unlimited capacity: P-OTS • WDM networks can provide a very high degree of freedom using colorless, directionless, and contentionless ROADM technology • Moving from 10G to 40G, 100G and beyond per wavelength decouples cost from bandwidth for future capacity growth • Meshed WDM networks need careful transient control for reliable operation • GMPLS control plane is used for efficient multi-layer service provisioning and restoration20 © Nokia Siemens Networks Broadband World Forum, September 2011
  • 18. Thank you for your attention Oliver Jahreis Mobile: +491728962745 Email: oliver.jahreis@nsn.com21 © Nokia Siemens Networks Broadband World Forum, September 2011