OpenFlow Beyond the Data Centre at IP Expo

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Jorg-Peter Elbers delivers presentation at IP Expo 2012 in London about how expanding OpenFlow SDN protocol beyond the data centre will lead to more efficient cloud networking environments and business innovation.

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OpenFlow Beyond the Data Centre at IP Expo

  1. 1. Expanding OpenFlowBeyond the Data CentreJörg-Peter ElbersADVAnced TechnologyIP Expo, London, Oct 2012
  2. 2. Outline• Software Defined Networks & OpenFlow• Optical Domain Extensions and Applications• Summary2 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  3. 3. SDN & OpenFlow in a Nutshell3 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  4. 4. Software Defined Networking (SDN) App App App App API SDN enables End-user value creation Virtual Network Slices new networking API paradigms through flexibility, Network OS agility, and API programmability. Data Plane4 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  5. 5. SDN Principles & Benefits • Deterministic behaviour, Separation of data predictable performance, and control plane rapid convergence Flow oriented • Simplified planning, data plane global optimization, off-line analysis Centralized management & control • Secure multi-tenancy & infrastructure sharing HW abstraction and virtualization • Better machine & service mobility Network • Application-driven programmability networking Key SDN innovations: virtualization and application-level programmability.5 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  6. 6. User Expectations More efficient network, faster service delivery & lower hardware costs.6 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  7. 7. OpenFlow in a Nutshell The most prominent protocol for Open Source SDN implementations.7 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  8. 8. Early SDN/OpenFlow AdoptersResearch & campus networks Web 2.0 Data centers8 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  9. 9. SDN Inside The Data Center Orchestration of IT & network resources Virtual Virtual storage Virtual server network Storage pool Fabric interconnect Server pool SDN adds missing piece to the virtualization puzzle: Network virtualization.9 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  10. 10. SDN Beyond The Data Center1 Optical Cloud Connectivity 2 Packet-based Cloud Access• Extend SDN into the optical domain • Extend SDN to access & backhauling• Provide low-latency/high capacity • Manage QoE with constrained capacity• Hide optical layer complexity • Allow content/service-aware optimization Carrier Ethernet Optical network access Programmable connectivity for data center & carrier infrastructure10 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  11. 11. Optical OpenFlow11 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  12. 12. SDN for Cloud Connectivity• Allow flexible resource pooling on a global scale• New applications • Follow the sun/dark • Load balancing • Bandwidth calendaring • Bulk transfers• Optical SDN for low latency/high capacity• But: Optical brings new challenges to SDN Optical OpenFlow requires extensions on protocol & architecture level.12 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  13. 13. Circuit Switching with OpenFlowCircuit Switching Extensions Circuit Flows In In 13 Starting Signal Out Out 13 Starting Signal VCG VCG Port Lambda Time-Slot Type Port Lambda Time-Slot Type Good for electrical switches, but limited support for optical wavelength switching. 13 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  14. 14. Optical OpenFlow Extensions OpenFlow Support for Optical Performance Constraints FSP 3000 ROADM platform Sequential Lightpath Setup/Teardown Optical Power Balancing Optical Node Model: Wavelenth Continuity & Dynamic Switching Constraints Connectivity & Topology Discovery Signal Mapping & Format Compatibility 1:N WSS WSS WSS WSS 1:N WSS 1:N WSS WSS λ Block 1:N WSS OSC WSS 1:N WSS (Out-of-band) Any λ λ2λ3 λ1 C TXOptical extensions required to deal with the analogue nature of the optical layer.14 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  15. 15. Optical OpenFlow Modes• Flat Network Mode • Optical network exposed to OpenFlow controller • OpenFlow controller with circuit & optical extensions • One OpenFlow agent per network element • Optical layer control as OF controller app• Encapsulated Optical Network Mode (aka Fat Switch Mode) • Optical network abstracted as virtual switch • Plain packet-based OpenFlow controller • Single OpenFlow agent per optical domain • Optical layer control by established technologiesCompromises possible between hiding optical complexity and exposing topology.15 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  16. 16. First Optical OpenFlow Demonstration Packet over Wavelength-Switched ROADM Network Orchestration of IT & Networking Resources Path by Controller App Computation(2) Submit Request including (1) Publish Service and User Context (3) Reserve Resources Infrastructure Information Request High Capacity ROADM Network StreamingEnd-User Server Joint demo with Uni Essex Visualization (NOW: BRISTOL UNIVERSITY) Facility @ Future Internet Assembly, Aalborg, May 10-11, 2012 16 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  17. 17. First International Demonstration Multi-Domain & Multi-Technology Packet over Fixed/Flexi Grid See ECOC‘12 Postdeadline Paper Th.3.D.217 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  18. 18. Use Case Analysis: Cloud Datacenter Capacity savings by flexible network resource allocation Shared vs. dedicated resource model 80% Node capacity savuings 70% N node ring 60% 50% 40% 30% N=4 20% 10% N=8 Uniform node-to-node traffic 0% 100% 90% 80% excessNetwork Utilization Excess traffic / base traffic 70% 60% traffic 50% 40% 30% 20% base Dedicated node resources for base traffic 10% traffic Model a): dedicated resources for excess traffic 0% Model b): shared resources for excess traffic 00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Time > 30% node capacity savings from shared model if excess traffic > base traffic. 18 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  19. 19. Summary19 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  20. 20. Summary & Conclusions• SDN brings programmability and virtualization to the networking world OpenFlow• OF is the most prominent open-source SDN protocol today• Extensions allow OF-controlled Source: Gartner technology hype cycle, optical cloud connectivity adapted from Wikipedia• Prospects: more network efficiency and faster service delivery• SDN & Openflow are still at the beginning of its life cycle … … and require ongoing development20 © 2012 ADVA Optical Networking. All rights reserved. Confidential.
  21. 21. Thank you jelbers@advaoptical.comIMPORTANT NOTICEThe content of this presentation is strictly confidential. ADVA Optical Networking is the exclusive owner or licensee of the content,material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited.The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representationsof any kind, either express or implied. ADVA Optical Networking shall not be responsible for and disclaims any liability for any loss ordamages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused byor in connection with using and/or relying on the information contained in this presentation.Copyright © for the entire content of this presentation: ADVA Optical Networking.
  22. 22. OFELIA OFELIA - Linking Infrastructure EU FP7 OpenFlow in Europe and Applications Eight Interconnected OpenFlow Islands • Project partners: EICT, DTAG, UESSEX, I2CAT, TUB, NEC, IBBT, ETH Zürich, ADVA, STANFORD • Duration: Sep. 2010 – Aug. 2013 (36 months) • Provide a unique experimental facility based on OpenFlow • Control the network itself – precisely and dynamically • Allows virtualizing and controlling the network environment through secure and standardized interfaces • Allows for Experimentation on multi-layer and multi-technology networks – Program your own cloud network! • Islands publicly available for experiments UEssex Island equipped with ADVA ROADMs • OFELIA belongs to the second wave of FIRE projects under FP7 More information at: http://www.fp7-ofelia.eutu-berlin.de ibbt.be ethz.ch telekom.com eict.de i2cat.cat nec.com essex.ac.uk advaoptical.com stanford.edu 22 © 2012 ADVA Optical Networking. All rights reserved. Confidential.

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