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06 - IDNOG04 - Dion Leung (Coriant) - Emerging Trends & Real Deployments for Data Center Interconnection (DCI)

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06 - IDNOG04 - Dion Leung (Coriant) - Emerging Trends & Real Deployments for Data Center Interconnection (DCI)

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06 - IDNOG04 - Dion Leung (Coriant) - Emerging Trends & Real Deployments for Data Center Interconnection (DCI)

  1. 1. Dion Leung, Ph.D., VP Business Development Emerging Trends & Real Deployments for Data Center Interconnection (DCI) Jakarta, July 27, 2017
  2. 2. Who is Coriant? • Our Mission: Global optical transport networking leadership • Our Customers: Trusted Tier 1 supplier serving over 500 customers globally, including 90% of the world’s top 50 service providers and leading enterprises • Our Company: – Formed in 2013 and built upon the distinguished heritage and proven solutions of industry-leading networking suppliers: » Nokia Siemens Networks » Tellabs » Sycamore Networks – Private company with deep financial resources and committed ownership – Over 70 sites in 40+ countries serving 100+ countries – 35+ years of large deployment & service delivery experience Connecting Innovation and Value From the Edge of Your Network to the Core of your Business © 2017 Coriant. All rights reserved. 2
  3. 3. Facebook – presented at NGON 2016 3
  4. 4. Limelight Networks – presented at SWC 2015 4
  5. 5. Equinix – presented at NGON 2016 5
  6. 6. Trends for Data Center Interconnection (DCI)? 6 M U X Individually Colored Wavelengths D E M U X Fiber Pair (or Single Core) Individually Colored Wavelengths Equally spaced channels (aka standard ITU grid)#Open transponders over any DWDM line systems #Flexible optical layer connecting metro, regional, subsea DCs Optical layer functions become #pluggable © 2017 Coriant. All rights reserved. Company Confidential.
  7. 7. Data Center Interconnection & Applications 7 • Between racks or meet-me-room on the same floor • Between racks on different floor • Between two or more data centers
  8. 8. 8 Interconnections “Within” a DC • Between racks on the same floor and/or different floors – X-connection has been one of the main revenue streams for colocation providers – For telco and content providers, x-connections monthly cost can be a large part of the OPEX, especially in carrier- dense, expensive DCs in NY, HK, Tokyo – Low cost DWDM point-to-point solutions are deployed to reduce monthly recurring cost – There is also growing interest by hyperscale DC to deploy point-to-point DWDM connecting spine and leaf switches
  9. 9. Interconnections Between DCs - Metro & Regional 9 • Between two or more DCs – DC-to-DC connectivity across metro, regional, long-haul/submarine regions, e.g. within metro Jakarta, or between Jakarta to Surabaya, or between Singapore to Tokyo – Colocation service providers need high- speed connectivity to make their tenants feel like all servers, switches, routers are “virtually” located in the same DC – Dark fiber providers who wants to expand their business from sell “dark” fibers to wavelength services – Content providers who are looking to build their own content delivery network (from leasing bandwidth to build-their-own network)
  10. 10. Cable Landing Station (CLS) to DC and DC-to-DC over Submarine Links 10 • Bandwidth Requirements Continue to Drive Subsea and CLS-to-DC Links – The new data centers in the region, especially in HK/SG/JP, have continued to demand faster connections from the submarine cables – Capacity of backhaul links between CLS and local DC has to be upgraded accordingly – It is not uncommon for these links to carry Tbps of capacity
  11. 11. What is an Open Line System (OLS) Concept? 11 • Open Line System (OLS) Model – Open network decouples “optical layer” from “wavelength service layer” – Open software interfaces make network management simpler – These open transponders must be simple to manage without forcing to use a traditional NMS system DWDM ROADM Open DWDM line system from Vendor A (metro, regional, LH, subsea) Vendor C Vendor B Open Transponder DCI Pizza Box NMS, CLI, NetConf, API Vendor C Vendor B Open Transponder DCI Pizza Box DWDM ROADM DWDM ROADM
  12. 12. 12© 2017 Coriant. All rights reserved. Source: IHS/Infonetics: 100G+ and ROADM Strategies, Global Service Provider Survey (Nov. 2015) DCI Applications Constraints Open Line System Drivers Cost/port and power density lead but … … ease of integration and DC automation is key, and… … requirement for Best-in- Class functions emerging Infonetics: What are the Drivers for OLS?
  13. 13. Customer’s Requests for the Past 12 Months… • Conducted trials with 3rd party optical line systems • A change, a new movement, a new way of growing their transport networks 13
  14. 14. Customer Proof of Open Line Systems Concept 14
  15. 15. 200G/16QAM Transmission (490km) Trial Tier 2 Service Provider: Link details for London – Leeds • 200G/16QAM wavelengths Open Line Transponder from Coriant and Cisco over Nokia Transmission 15© 2017 Coriant. All rights reserved. Company Confidential. Leeds 1830 OLT 1 degree Site 2 1830 ROADM 2 degree Site 3 1830 ROADM 2 degree Site 4 1830 ROADM 2 degree Site 5 1830 ROADM 2 degree Site 6 1830 OLA RAMAM London 1830 OLT 1 degree 114 km 32 db 70 km 20 db 73 km 21 db 75 km 23 db 98km 30 db 67km 20 db 16QAM @ 191.75THz 16QAM @ 191.75THz
  16. 16. Proof point with Tier 1 US Carrier – 1500km “Just wanted to let you know that our soak test of the Groove between DFW and DEN has completed and was successful at 8QAM running 150G. We ran for two days with no errors. The plan is to put some production traffic on this unit.” Global Network Services 16© 2017 Coriant. All rights reserved. Company Confidential.
  17. 17. Trends for Data Center Interconnection (DCI)? 17 M U X Individually Colored Wavelengths D E M U X Fiber Pair (or Single Core) Individually Colored Wavelengths Equally spaced channels (aka standard ITU grid)#Open transponders over any DWDM line systems Optical layer functions become #pluggable © 2017 Coriant. All rights reserved. Company Confidential.
  18. 18. Miniaturization: EDFA Technology Example MSA / Module Based  XFP / Pluggable Based 18 EDFA: MSA (90x70mm2) EDFA: Ultra-Mini (60x40mm2) EDFA: XFP & OFP2 © 2017 Coriant. All rights reserved. Company Confidential. XFP-EDFA
  19. 19. Other Possible “Pluggable” Functions…  Miniaturization of Optical Layer Components − EDFAs − EVOAs − OCM − WSS − OSC  Compact Low Loss Filters − Low insertion loss-Enables extended passive architectures and more complex channel plans − Reduced footprint  EVOAs with Auto Attenuation − EVOA with integrated photodiode  Power Tone for Amplifier Gain Setting: − Cost-effective solution for automatic gain setting on amplifiers EDFA: MSA (90x70mm2) EDFA: Ultra-Mini (60x40mm2) EDFA: XFP & OFP2
  20. 20. Pluggable Optical Layer: Trends and Evolution 20 Low Upfront Cost Functionality Passive Fixed Gain Amplifier Variable Gain Amplifier Manual Gain Setting OCM Per Ch Power Monitoring, Auto balancing and gain setting CWDM Filters EVOAs for extended reach Broadcast & Select ROADM Raman Amplifier DWDM Filters Route & Select ROADM Power Tone Amplifier gain setting OSC In-band Management & Amplifier Gain Setting OTDR Allow users to optimize, mix-and-match functionalities for a variety of DCI applications… hopefully with better costing Pre-Amp+ Booster
  21. 21. Trends for #DCI? 21 M U X Individually Colored Wavelengths D E M U X Fiber Pair (or Single Core) Individually Colored Wavelengths Equally spaced channels (aka standard ITU grid)#Open transponders over any DWDM line systems #Flexible optical layer connecting metro, regional, subsea DCs Optical layer functions become #pluggable © 2017 Coriant. All rights reserved. Company Confidential.
  22. 22. ROADM – Basic Concept and Value • For initial Point-to-Point network, Fixed OADM (FOADM) network architecture worked fine. • A problem arises when we have intermediate location that requires “partial” adding/dropping of traffic  manual patch work is needed DC1 DC3 40km 12dB DC2 20km 8dB 5 months ago: 10 x 10GE connectivity between DC1 and DC3 10 x 10GE 5 x 100GbE Next month: 5 x 100GE connectivity between DC1 and DC3 (via DC2) © 2017 Coriant. All rights reserved. Company Confidential.
  23. 23. What Do You Need to Do at DC2? • Some cable patching work is required to get the 100G wavelengths passing via DC2 • For small l counts, the job is manageable. But for full 40/80/96 DWDM channels, ROADM architecture will allow user-selective add/drop capability. DEMUX MUX l l l l l l l l l l 1. Engineers puts in a physical patch cord, which introduces insertion loss and it affects the overall link budget. 2. Each wavelength added needs to be re-balanced… l 3. Regeneration is often needed due to deficit power budget DC1 DC2 DC3 © 2017 Coriant. All rights reserved. Company Confidential.
  24. 24. How a 4-Degree ROADM Node Works… A/D Ex2 Ex4 Ex3 R O A D M Fiber Line A/D Ex3 Ex2 Ex4 R O A D M Fiber Line A/D Ex2 Ex4 Ex3 R O A D M Fiber Line l Mux / Demux l l A/D R O A D M Fiber Line Ex2 Ex3 Ex4 Mux / Demux l lExpress Cable Automatic Power Equalized Wavelengths Adding new ROADM “degrees” when new connectivity is needed DC1 DC3 DC2 DC4 DC5
  25. 25. Various Kinds of ROADM Implementation Today… 25 What types of ROADM line system is right for you? It depends on your application and design objectives. © 2017 Coriant. All rights reserved. Company Confidential. Individual Modules ROADM-on-a- Blade Pluggable Optical Layer Footprint & Power    Flexibility (to mix & match components)    ROADM Scalability (Degrees, Channels)    Advanced ROADM Add/Drop (CDC, Flexigrid)    Performance/Reach    Ease of Installation    Cost of Replacing Failed Hardware/Sparing   
  26. 26. A Good Optical Planning Tool “Always” Helps…  26© 2017 Coriant. All rights reserved. Company Confidential. Especially if you fiber optic layer begins to grow… … or if latest technologies, including colorless, directionless, contentionless, gridless, are considered.
  27. 27. Thank You. You can find me on Linkedin https://www.linkedin.com/in/dionleung/

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