Benefits of multi layer bandwidth management in next generation core optical networks
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OFC 2013 Presentation This preso evaluates multi-layer switching architecture vs. all-optical and all-digital switching architectures. Further, the value of incorporating super-channels is evaluated to determine benefit. A real world network model is utilized to quantify and compare results.
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Benefits of multi layer bandwidth management in next generation core optical networks
- 1. 1 | Infinera Confidential & Proprietary Benefits of Multi-Layer Bandwidth Management in Next Generation Core Optical Networks Anuj Malik Product & Solutions Marketing WDM SGP 2014
- 2. 2 | Infinera Confidential & Proprietary The ServiceProviderLandscape Is Being Transformed Content Video Data Center Cloud Nonstop Bandwidth Growth Networks Need Scale and Reliability
- 3. 3 | Infinera Confidential & Proprietary Solve the Capacity Challenge – Super-Channels PIC-BASED LINE MODULE Delivers excellent optical performance Must be provisioned in a single operational cycle Operational Scale Fiber Capacity Next Gen Services Super-channels are an evolution in DWDM in which several optical carriers are combined to create a composite signal of the desired capacity x10
- 4. 4 | Infinera Confidential & Proprietary Not just Capacity, Network trends are changing too …. Fully filled super-channels High-capacity “express” routes Optical-layer restoration<50ms service protection Highly meshed demands Low add/drop collector networks Many 100G+ servicesMany <100G services Digital Switching Optical Switching Express Collector Optimized with Optimized with
- 5. 5 | Infinera Confidential & Proprietary Value of Multi-layer Switching AutomateEverything! Fully filled super-channels High-capacity “express” routes Optical-layer restoration<50ms service protection Highly meshed demands Low add/drop collector networks Many 100G+ servicesMany <100G services Digital Switching Optical Switching Express Collector Optimized with Optimized with Digital Switching Optical Switching Digital grooming maximizes WDM fill -> CapEx savings Sub-l switching & service protection -> OpEx savings ODU0/flex and packet switching granularity Reconfigurable super-channel switching -> OpEx Savings Optical express of filled super- channels -> CapEx savings Wavelength & super-channel granularity Photonic switching of 500G/1T super-channels Service-level digital switching & grooming (Ethernet/SDH/OTN/SAN)
- 6. 6 | Infinera Confidential & Proprietary WDM Network Value of Integrated Switching WithoutDigitalSwitching:Inefficient,Static 4 x 10G 13 x 10G 1 x 10G • “Services over wavelengths” • “Muxponder tax” inefficiency • Optical-only switching • No digital switching & reconfiguration • Patch panel & truck-roll re-grooming All-Optical Many, poorly filled wavelengths 10% fill 40% fill 30% fill 1x10G 100G l 4x10G 100G l 100G l3x10G
- 7. 7 | Infinera Confidential & Proprietary WDM Network Switching Network Value of Integrated Switching WDM+Stand-aloneOXC’s:2PlatformSolution Standalone OXC • OXC provides network efficiency • 2 platform solution: space & power • Back-back client connections • Segmented provisioning/protection • No end-end management/automation • “Services over wavelengths” • “Muxponder tax” inefficiency • Optical-only switching • No digital switching & reconfiguration • Patch panel & truck-roll re-grooming All-Optical Switching increases l utilization 10% fill 40% fill 30% fill 4x10G 13x10G 1x10G $$$, complexity, space, & power 80% fill 1x10G 100G l 4x10G 100G l 100G l3x10G
- 8. 8 | Infinera Confidential & Proprietary WDM Network Switching Network 4x10G 13x10G 1x10G $$$, complexity, space, & power Value of Integrated Switching CollapsingLayers,SimplifyingNetworks Converged DWDM & OTN Switching • Converged OTN/WDM switching • Eliminate I/C cost, extra space/power • Eliminates many points of failure • Automated, end-end provisioning • End-to-end service protection Standalone OXC • OXC provides network efficiency • 2 platform solution: space & power • Back-back client connections • Segmented provisioning/protection • No end-end management/automation • “Services over wavelengths” • “Muxponder tax” inefficiency • Optical-only switching • No digital switching & reconfiguration • Patch panel & truck-roll re-grooming All-Optical 4 x 10G 3 x 10G 1x 10G Efficient converged network 10% fill 40% fill 30% fill 80% fill 1x10G 100G l 4x10G 100G l 100G l3x10G
- 9. 9 | Infinera Confidential & Proprietary Range of “Optical Switching” Capabilities Basic ROADM CDC-ROADM Reconfigurable express & add/drop (replace FOADM) Specific l mux port 1 x mux per direction Colorless: any channel to any mux port Directionless: share mux between directions Contentionless: multiples of same l can be add/drop to same mux Colorless-ROADM Enhances Basic-ROADM Enables any channel connected to any mux port 1 x mux per direction CDC ROADM Provide Truly Flexible Optical Transport Infrastructure
- 10. 10 | Infinera Confidential & Proprietary C-D-C FlexROADM Benefits of Super-Channel CDC ROADM “Pay-as-you-grow” of channel mux (Directionless) -> lowers CapEx “Install and Forget” installation of WDM line modules -> lowers OpEx 75% (typ) fewer fibers vs. 100G wave ROADMs Simpler wavelength planning (Colorless and Contentionless) Enables Layer 0 restoration: lower CapEx & enhanced services
- 11. 11 | Infinera Confidential & Proprietary Super-Channel vs. 100G Switching Architecture Fewer Components, Less Space Fewer Fiber Connections, Less Complex, More Reliable More Capacity and Scalability Super-Channel ROADM West East North South WSS WSS Transponder Transponder Transponder Add/drop Transponder 40 FRUs 32 Patch Fibers* West East North South Add/drop Transponder Transponder Transponder WSS WSS Transponder Transponder 100G ROADM Transponder Transponder Transponder 176 FRUs 136 Patch Fibers* * 4 degree ROADM Node, 4Tb/s WDM capacity per direction, 50% Add-Drop FSP FSP
- 12. 12 | Infinera Confidential & Proprietary Increasein ROADM Add/Drop Capacitywith Super-Channels Typical CDC ROADM Architecture WSS and MCS – Off the Shelf Components WSS : 1 x 16 MCS: 8 x 12 Super-Channel ROADM has more capacity and Scalable Add/Drop percentage of super-channel based ROADM and 100G ROADM 0 10 20 30 40 50 60 70 80 90 100 2 3 4 5 6 7 8 1T SC CDC ROADM 500G SC CDC ROADM 100G CDC ROADM Number of Degrees % of Add/Drop
- 13. 13 | Infinera Confidential & Proprietary Unified“EaseOf Use”withDigital& Photonic Domain AutomateEverything GMPLS: WSON/SSON Route Computation Point and Click Provisioning Network Failure Auto-Restored Traffic P Digital Domain P P P P P P P Hello Hello Photonic Domain ADAPT Automatic adjustment & monitoring of WDM parameters “Hands-free” link turn-up & optimization Auto-Discovery Topology Discovery Inventory and Configuration Management Restoration <50ms Digital FastSMP protection Multi-second Optical GMPLS restoration
- 14. 14 | Infinera Confidential & Proprietary Express Collector Sub-super-channel services multiplexed by OTN switching Super-channels become efficiently & fully filled Capex Example: Can now optically express super-channels at Node C Opex & Revenue Example: If traffic patterns change, super-channels can be re-groomed quickly & without truck rolls Digital Add/DropOptical Switching C Benefit of Multi-Layer Switching Rapid Customer Adds
- 15. 15 | Infinera Confidential & Proprietary Network Study
- 16. 16 | Infinera Confidential & Proprietary Architecture Comparisons All Digital Switching Architecture All Optical Switching Architecture Multi-Layer Switching Architecture
- 17. 17 | Infinera Confidential & Proprietary 26,629 km fiber network 60 total add/drop nodes • 17 Tier 1 • Includes 8 data center nodes • Includes 2 dual POP sites (London, Paris) • 26 Tier 2 cities • 17 Tier 3 cities • 238 optical line amplifier sites Representative of typical long-haul collector network • “Carrier’s carrier” service provider • Tier 1/PTT national long-distance international network Pan-European Long-Haul Network Fiber Type Fiber Distance (km) Number of Spans E-LEAF 17689 215 Silica Core 486 3 SMF28 7826 93 TWRS 627 8 Total 26629 319
- 18. 18 | Infinera Confidential & Proprietary 3-tier service demand model • Gravity model for A-Z demands between all city-city pairs • Overlay data traffic from data centers • Overlay international traffic from trans-oceanic cables Service demands across range of interface rates: 1G, 2.5G, 10G, 40G and 100G Average 57% growth per period over 5 periods Final traffic volume of 55Tb/s • 4Tb/s average capacity per WDM link Pan-European Long-Haul Collector Network ServiceDemandAssumptions Network Traffic Volume (Tb/s) TotalTrafficVolume(Tb/s) 0 10 20 30 40 50 60 Period 1 Period 2 Period 3 Period 4 Period 5 9 Tb/s 26 Tb/s 55 Tb/s 100G 40G 10G 2.5G 1G Service I/F 17 Tb/s 39 Tb/s
- 19. 19 | Infinera Confidential & Proprietary Benefits of Multi Layer Switching CAPEX Reduction: 13-22% less number of 100G ports All Digital Switching More efficient with less filled demands All Optical Switching More efficient with fully filled demands Multi Layer Switching Combines benefits of both digital and optical switching
- 20. 20 | Infinera Confidential & Proprietary Benefits of Super-Channel Based Switching OPEX Reduction – Fewer components, faster deployment time Additional Service Ready Capacity
- 21. 21 | Infinera Confidential & Proprietary Conclusion Multi Layer Switching - Combines the benefits of Digital and Optical Switching - Provides CAPEX and OPEX benefits with BW growth Super-Channel Level Switching - Offers significant OPEX benefits with additional service ready capacity
- 22. 22 | Infinera Confidential & Proprietary Thank You