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- 1. 1 COPYRIGHT © 2013ALCATEL-LUCENT. ALL RIGHTS RESERVED.
- 2. COPYRIGHT © 2013ALCATEL-LUCENT. ALL RIGHTS RESERVED. 2 Gil Bento Alcatel-Lucent April 9th – ISCTE-IUL The Road Towards Packet Optical Transport Networks: Optical Transport Networks Evolution to OTN/DWDM
- 3. 1. BANDWIDTH DRIVERS 2.OPTICAL TRANSPORT NETWORK EVOLUTION 3. OTN OVERVIEW AGENDA COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 3 4. IP OVER OTN/DWDM 5. WHAT'S NEXT
- 4. BANDWIDTH DRIVERS TRANSFORM THEOPTICAL NETWORK 80% MORE THAN 4 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. *Bell Labs – Value of Cloud for a Virtual Service Provider study, 2011 OF ALL NEW SOFTWARE WILL BE AVAILABLE AS CLOUD SERVICES BY 2014*
- 5. BANDWIDTH DRIVERS TRANSFORM THEOPTICAL NETWORK 80% MORE THAN 58% APPROXIMATELY 5 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. *Bell Labs – Value of Cloud for a Virtual Service Provider study, 2011 OF ALL NEW SOFTWARE WILL BE AVAILABLE AS CLOUD SERVICES BY 2014* OF ALL INTERNET TRAFFIC WILL BE VIDEO BY 2015** **Informa Telecoms and Media, 2011
- 6. BANDWIDTH DRIVERS TRANSFORM THEOPTICAL NETWORK 80% MORE THAN 20BILLION MORE THAN 58% APPROXIMATELY 6 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. *Bell Labs – Value of Cloud for a Virtual Service Provider study, 2011 OF ALL NEW SOFTWARE WILL BE AVAILABLE AS CLOUD SERVICES BY 2014* SMART DEVICES WILL BE CONNECTED BY 2020*** OF ALL INTERNET TRAFFIC WILL BE VIDEO BY 2015** **Informa Telecoms and Media, 2011 ***Strategy Analytics
- 7. MASSIVESCALE BANDWIDTH DRIVERS TRANSFORM THEOPTICAL NETWORK INCREASEDAGILITY EFFICIENT 7 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. GREATERINTELLIGENCE EFFICIENTNETWORKING
- 8. ONCE IN ADECADE TRANSITION IS UPON US WAVELENGTH CAPACITY 100G 100% 100G 40G 8 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 2.5G 10G 40G 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 WAVELENGTH CAPACITY … … 0% Aggregate port X port capacity (1999 – 2011)* 10G 2.5G * Dell’Oro: O25A Optical Forecast Tables, January 2012
- 9. ONCE IN ADECADE TRANSITION IS UPON US “The Chasm” 100G 9 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 2.5G 10G 40G 2000 2010
- 10. 1. BANDWIDTH DRIVERS 2.OPTICAL TRANSPORT NETWORK EVOLUTION 3. OTN OVERVIEW AGENDA COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 10 4. IP OVER OTN/DWDM 5. WHAT'S NEXT
- 11. • TDM/SDH OPTICAL TRANSPORTNETWORK EVOLUTION Types of Multiplexing Time Division Multiplexing An example of TDM Application is SDH 11 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. • WDM Wavelength Division Multiplexing
- 12. Line interface (10G, 100Gbit/s) Router Optical network WDM system (e.g., 80 x 100 Gbit/s) OPTICAL TRANSPORT NETWORK EVOLUTION IP OVER DWDWM COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 12 Optical network (WDM) WDM: Wavelength-division multiplexing Key Technology #1: WDM = Solution to reach multiterabit/s capacity Key Technology #2: OTN = Solution to transport IP over DWDM
- 13. 1. BANDWIDTH DRIVERS 2.OPTICAL TRANSPORT NETWORK EVOLUTION 3. OTN OVERVIEW AGENDA COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 13 4. IP OVER OTN/DWDM 5. WHAT'S NEXT
- 14. • What isit? • Integrated switching and multiplexing structure with electronic and photonic layers • Benefits • Reliable switching and transparent transport for all client types: • Ethernet (1-100 GbE, VLAN), IP-MPLS/MPLS-TP, Data Center/Video/SAN, SDH/SONET OPTICAL TRANSPORT NETWORK (OTN) 14 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. • Ethernet (1-100 GbE, VLAN), IP-MPLS/MPLS-TP, Data Center/Video/SAN, SDH/SONET • Maximizes wavelength utilization, reducing capex and extending network lifetime • Full suite of OAM (Operations, Administration and Management) features
- 15. OTN BACKGROUND 2003 1st generationof OTN standards including G.709, TODAY OTN updated to be Ethernet/packet- friendly over1-100G LOOKING AHEAD Beyond 100G 15 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. including G.709, mainly used for 2.5- 10G wavelength management Ethernet/packet- friendly over1-100G data rates, added ODUflex & resize Beyond 100G (400G) OTN provides a multi-service capable backbone infrastructure supporting lambda and sub-lambda services with guaranteed quality
- 16. OTN HIERARCHY Unified photonicand electronic transport networking WDM switching ODU switching ODU switching WDM switching Line amplifier Optical Transport Line amplifier 1:N 1:N N:1 N:1 Electronic domain Photonic domain COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 16 OCh provides end-to-end bandwidth management for a wavelength signal in the photonic domain ODU provides end-to-end bandwidth management for a sub-wavelength signal in the electronic domain - is a fixed-sized container with in-band OAM tools for quality supervision and SLA assurance - functions as primary bearer for client traffic - Lower Order (LO-ODU) transparently carries 1.25G, 2.5G, 10G, 40G, 100G client signal rates - Higher Order (HO-ODU) transparently carries multiple (multiplexed) LO-ODUs Optical Transport Section (OTS) Optical Multiplex Section (OMS) - multi-wavelengths Optical Channel (OCh) - wavelength Optical Channel Data Unit (ODU) - sub-wavelength
- 17. OTN HIERARCHY OPTICAL TRANSPORTMODULE OTUk Optical Channel (OCh) Client ODUk FEC OH OCh Transport Unit (OTUk) OPUk OH OCh Data Unit (ODUk) Client OH OCh Payload Unit (OPUk) Electronic D omain OH Photononic COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 17 Optical Transport Module Optical Channel Carrier (OCC) OCC OCC OCC Optical Supervisory Channel OSC OOS OSC OH OH Optical Multiplex Section Optical Transmission Section Photononic Domain
- 18. ITU-T G.709 (December2009): Highlights OTH Rates OTUk ODUk Marketing Rate True Signal (OTU) True Payload (OPU) ITU-T G.709 NA ODU-0 1.25Gb/s NA 1.238Gb/s Dec 2009 NA ODU-flex n*1.25Gb/s NA n*1.238Gb/s Dec 2009 OTU-1 ODU-1 2.5Gb/s 2.666Gb/s 2.488Gb/s Jan 2003 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 18 OTU-2 ODU-2 10Gb/s 10.709Gb/s 9.953Gb/s Jan 2003 OTU-2e ODU-2e 11Gb/s 11.096Gb/s 10.312Gb/s Dec 2009 OTU-3 ODU-3 40Gb/s 43.018Gb/s 39.813Gb/s Jan 2003 OTU-4 ODU-4 100Gb/s 111.809Gb/s 104.794Gb/s Dec 2009
- 19. ITU-T G.709 (December2009): Highlights Optical Transport Hierarchy (OTH) 19 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
- 20. 1. BANDWIDTH DRIVERS 2.OPTICAL TRANSPORT NETWORK EVOLUTION 3. OTN OVERVIEW AGENDA COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 20 4. IP OVER OTN/DWDM 5. WHAT'S NEXT
- 21. IP-OPTICAL CONVERGENCE STRATEGIC QUESTIONS LOGICALNETWORK EVOLUTION LOGICAL NETWORK EVOLUTION PHYSICAL NETWORK EVOLUTION PHYSICAL NETWORK EVOLUTION How will currently separate IP and Optical networks evolve into a single converged IP-Optical architecture? How will currently separate IP and Optical networks evolve into a single converged IP-Optical architecture? 21 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. What opportunities exist to simplify layer network architecture by converging or eliminating layers? What opportunities exist to simplify layer network architecture by converging or eliminating layers? OPERATIONAL CONSOLIDATION OPERATIONAL CONSOLIDATION Are there opportunities to converge and streamline operational management tasks across IP and Optical? Are there opportunities to converge and streamline operational management tasks across IP and Optical?
- 22. IP over DWDM DIFFERENTOPTIONS IP and DWDM • IP OVER DWDM BASED PHOTONIC ARCHITECTURE • NO OPTICAL RESTORATION 1 1 1 IP over DWDM UNI • IP OVER DWDM-BASED PHOTONIC ARCHITECTURE • LAMBDA GROOMING 2 2 2 22 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. UNI • LAMBDA GROOMING • PHOTONIC RESTORATION 2 2 2 IP over OTN UNI • IP OVER OTN/DWDM BASED SWITCHED/PHOTONIC ARCHITECTURE • SUBLAMBDA/LAMBDA GROOMING • MULTILAYER RESTORATION (MRN) 3 3 3
- 23. IP AND DWDM TRANSPONDERINTEGRATED IN DWDM IP Service Edge Core Router Core Router IP Service Edge IP/MPLS DWDM Core Router 1 1 1 23 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. IP DWDM Core Router interfacing Requires optical transponders in DWDM Many Electrical-Optical Conversions Traffic grooming Statistical multiplexing in the IP core Fairly low fill grade (~50-60%) Core Router Topology Strongly meshed topology to minimize # of router hops. No bypass Service protection IP and MPLS fast reroute mechanisms 10/40/100G WAVELENGTHS
- 24. IP AND DWDM APPLICABILITY •Advantages - Low cost router optics - Minimal IP-optical interworking need • Drawbacks - Scaling cost (meshing cost, low fill grade) - No “leased line” service support - Costly due to many E-O-E conversions - No IP visibility on transport performance - IP interfaces/links need to be manually mapped on photonic layer resources 1 1 1 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 24 mapped on photonic layer resources Simple but inflexible and costly to scale Least amount of IP – optical integration
- 25. IP OVER DWDM TRANSPONDERINTEGRATED IN ROUTER IP Service Edge Core Router Core Router IP Service Edge IP/MPLS DWDM Core Router UNI 2 2 2 25 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. DWDM IP Traffic grooming Statistical multiplexing in the IP core Lambda switching in ROADM Core Router Interfacing Colored interfaces into ROADM Fewer Electrical Conversions Service protection IP and MPLS fast reroute mechanisms Optical layer protection mechanisms Core Router Topology Selective bypass as needed using 10, 40 or 100G optical shortcuts PORT AND λ SWITCHING
- 26. IP OVER DWDM APPLICABILITY Advantages -Reduce need for EOE conversions - IP layer has direct visibility on optical transport layer performance - UNI allows IP layer to dynamically request lambdas in photonic layer - Lambda leased line services Drawbacks - Colored router optics are more costly - Must resolve IP-optical interworking challenges at data and control plane - No native TDM (sublambda) service support - Ties the capacity of the DWDM layer to the router speed port. 2 2 2 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 26 the router speed port. Better scale flexibility but more exposed to IP – optical interworking issues
- 27. IP OVER OTN(OVER DWDM) GRANULAR GROOMING AND TRUE TDM 3 3 3 IP Service Edge Core Router Core Router IP Service Edge IP/MPLS Switched DWDM Core Router UNI 27 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. sWDM IP Core Router Interfaces Colored interfaces or black white Fewer Electrical Conversions Core Router Topology Selective bypass as needed through electrical or photonic layer Traffic grooming Statistical multiplexing in IP layer and grooming at photonic/electrical layer Flexible grooming Service protection IP and MPLS fast reroute mechanisms Electrical/Photonic restoration
- 28. IP OVER OTN APPLICABILITY Advantages -IP layer has indirect visibility on digital transport layer issues - UNI allows IP layer to dynamically request lambdas/circuits from Switched WDM - Flexible, granular and highly efficient traffic grooming with selective IP shortcut options Drawbacks - IP layer has direct visibility on optical transport layer issues - Colored router optics are more costly - EOE conversion to access sublambda layer - Must resolve IP-optical interworking challenges at data and control plane 3 3 3 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 28 grooming with selective IP shortcut options - Sublambda/Lambda leased lines services challenges at data and control plane Best scale, flexibility and service versatility. Most exposed to IP – optical integration issues.
- 29. IP-OPTICAL CONVERGENCE CONCLUSION • Inthe real world ‘one solution does not fit all’ 29 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. ‘IF THE ONLY TOOL YOU HAVE IS A HAMMER EVERYTHING LOOKS LIKE A NAIL’
- 30. 1. BANDWIDTH DRIVERS 2.OPTICAL TRANSPORT NETWORK EVOLUTION 3. OTN OVERVIEW AGENDA COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 30 4. IP OVER OTN/DWDM 5. WHAT'S NEXT
- 31. WHAT’S NEXT 100GIGABIT 400GIGABIT1TERABIT 31 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED.
- 32. WHAT’S NEXT HIGH SPEEDSTANDARDIZATION CYCLE Design Framework Feasibility, Apps Requirements Components and Interfaces Hero experiments, Lab Trial Architecture, top-level specs and designs Commercialized components, modules, systems COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 32 Time Improved and Complementary Features Reductions in form factor, power, cost We Are Here for 100G We Are Here for 100G
- 33. WHAT’S NEXT HIGH SPEEDSTANDARDIZATION GROUPS Router/ Packet Switch Optical Switch Ethernet Optical Transport Ethernet Optical Switch Router/ Packet Switch COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 33 Optical Transport Hierarchy Internal framework, modules, interfaces Global leader of transport standardization: infrastructures, systems, equipment, optical fibers, control and management OTN, SDH, TDM, packet transport 802.1 leadership in Ethernet architecture and networking protocols 802.3 leadership for 40GbE/ 100GbE and Beyond
- 34. WHAT’S NEXT Example ofEvolution(s) 10 100 Serial Interface Rates and WDM Capacities Tb/s 1 10 Pb/s 1530 1550 1570 1530 1550 1570 980nm diode λ(nm) 1530 1550 1570 1610 1590 1530 1550 1570 1610 1590 COPYRIGHT © 2013 ALCATEL-LUCENT. ALL RIGHTS RESERVED. 34 1986 1990 1994 1998 2002 2006 10 100 1 Serial Interface Rates and WDM Capacities Gb/s 2010 2014 2018 1 2022 PDM THE DREAM: 10Tbit/s optical interface and 10Pbit/s transport capacity After P. Winzer
- 35. 35 COPYRIGHT © 2013ALCATEL-LUCENT. ALL RIGHTS RESERVED. • The transition to 100G is upon us • Alcatel-Lucent is shining a light on the path to 400G, 1Terabit and beyond