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Cutting Costs with Energy Efficient 40G Cabling

Cutting Costs with Energy Efficient 40G Cabling. Agenda London. Welcome & Intro Andy Perrott New Market & Technology Trends Harry Forbes Nexans Solutions How Nexans cabling technologies address these issues Rob Cardigan

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Cutting Costs with Energy Efficient 40G Cabling

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  1. Cutting Costs with Energy Efficient 40G Cabling

  2. Agenda London • Welcome & Intro Andy Perrott • New Market & Technology Trends Harry Forbes • Nexans Solutions • How Nexans cabling technologies address these issues Rob Cardigan • How Nexans intelligent solutions address these issues Tony Benn • Questions • Coffee, discussion, close

  3. Introduction to Nexans

  4. Global presence • Industrial operations in 39 countries • Commercial operations worldwide • >23500 local experts • 2008 turnover €6.8 Billion

  5. Change in performance Ethernet 10 Mb/s FDDI 100 Mb/s ATM 155 Mb/s Cabling System Infrastructure progress DATARATE Requirements of the network Token Ring TIME Fast Ethernet 16 Mb/s GIGABIT ‘79 Ethernet 100Mb/s ‘85 ATM 1 Gbit/s ‘93 ‘94 10 Gbit/s ‘95 100 Gbit/s 2000 2005 Moore's law : required data rate Increases by a factor of 10 every 5 years Performance Categories 2010

  6. Changes in usageTraditional model GSM Remote Access CCTV Storage Fax Wireless Phones Switches Access Environmental Control Terminals

  7. …and nowThe IP World

  8. Changes in legislation • Regulatory and compliance requirements • Sarbanes Oxley • BASEL II • ITIL • Green IT • Carbon Reduction Commitment

  9. Green IT? • ‘Green’ • not just about saving the planet • it is about cost saving and will become a financial necessity

  10. Technology Trends Harry Forbes

  11. Agenda • Is there really a need for higher bandwidth? • Bandwidth Predictions • Cisco Predictions • Can Ethernet compete in the data centre? • Converged Enhanced Ethernet • Why is ‘Green IT’ such a big deal? • Carbon Reduction Commitment • Energy Efficient Ethernet

  12. What will be the adoption rate of higher bandwidth?

  13. 300 IPTV 250 Internet Phone 200 150 100 50 0 2005 2006 2007 2008 2009 2010 2011 Global Subscriber Access Traffic 50M IPTV subscribers assumed in 2011 with 4 hours/day from 2007 Millions TB/year

  14. Cisco Estimates • Worldwide Internet traffic to increase x5 by 2013 • Growth driven by interactive media • IP traffic to reach 50 Exabytes/month • Fastest Annual growth ME & A (51%) • Doesn’t include P2P file sharing (3.3 Exabytes/month) • Increase in traffic will demand increased DC capacity and reliability • User sessions up from 2 to 10 – quality implications

  15. The Data Centre Evolution Automation Consolidation Virtualisation Cloud

  16. Total Ethernet Links *Source: Alan Flatman, 2007 Switch-to-switch links (millions) Within lifespan of today’s cabling Server-to-switch links (millions)

  17. Impact on the Data Centre • Sustained year on year growth of new applications, servers and storage • Data Centres now being planned for 20 – 50 year lifespan • Cabling Infrastructure needs to be planned in accordance • Other issues that need to be taken into account • Future of Ethernet • Energy Consumption

  18. Converged Enhanced Ethernet

  19. The Current Situation • Existing DC applications • Ethernet • Fibre Channel • Infiniband  3 systems • more complex • Difficult to manage • Higher cost (equipment, admin, maintenance) • Ethernet struggling to compete above 1Gbps • Low I/O throughput • High Latency • Unsuitable for storage applications & cluster computing

  20. What is Converged Enhanced Ethernet? • New standards being developed by IEEE & IEFT • Priority Flow Control (IEEE 802.1Qbb) • Congestion Notification (IEEE 802.1Qau) • Shortest path bridging (IEEE 802.1aq) • Link Layer routing protocol (IETF – TRILL) • Enhanced transmission selection (IEEE 802.1Qaz) • Aim is to improve I/O throughput and reduce latency • Collectively called Converged Enhanced Ethernet or  ‘Data Centre Ethernet’

  21. What Does This Bring The User? • Converged Enhanced Ethernet • Single unified network fabric • Easier management, admin, maintenance • Cheaper hardware costs • Plug & play features • Migration path to higher speeds • Long reach • Enables design flexibility • Improved load balancing/reduces hotspots • More efficient cooling

  22. Converged Enhance Ethernet I/O-Consolidation without Virtualization With Virtualization Today Green: Classic Ethernet Red & Blue: Fibre Channel Red, Green & Blue bundle: 10/40 GbE FCoE Graphic: FCIA

  23. Impact of Converged Enhanced Ethernet • Data Centre Ethernet  single unified horizontal cabling system • A migration path for converged LAN/SAN • Potential to support emerging FCoE (Fibre Channel over Ethernet) standard • Positions Ethernet as replacement for Infiniband through improved latency & I/O throughput

  24. Carbon Reduction Commitment

  25. Carbon Reduction Commitment • Government aim to reduce greenhouse gas emission • 80% reduction by 2050 • Who is targeted? • ALL Companies using Half Hourly Metres • usage >6000MWhr in 2008 • Will indirectly impact ~20000 UK companies • Companies will have to buy & sell allowances...

  26. Carbon Reduction Commitment • Estimated cost of typical consumption v allowance • Penalties and bonuses will be awarded depending on performance

  27. Impact on the Data Centre • Data centres will be affected • Pressure to reduce power consumption But also ....... • Demand for increased capacity at same time • Additional penalties are more likely to be incurred • Even more financial motivation to save cost

  28. Options for DC owners? • Consolidation & virtualisation? • YES – both will help but ....... • CAPEX to invest will outstrip CRC penalties at some point • Cluster computing  poor load balance & hot spots  inefficient energy use Additional actions will be required to prevent acceleration of energy growth

  29. Energy Efficient Ethernet

  30. Energy Efficient Ethernet • New Task Group formed to study ways to improve power consumption for Ethernet : “Energy Efficient Ethernet” • Idea: Idle Time of Ethernet is up to 90% = 90% waste of energy • “Reduce power when traffic goes down” • Down to 10% or even 0% of energy during idle time

  31. Existing developments • 10Gig standard already ‘accidentally’ includes some features to improve energy efficiency: • Power Back Off • Originally a ANEXT mitigation technique • Short Reach Mode • Theoretical means of reducing energy consumption

  32. Power Back OffLong/Short Links server server switch Long link Short link Signal attenuates over cable length High transmit power from near server induces high level Alien NEXT on weakened signal

  33. Power Back OffLong/Short Links server server switch Long link Short link With Power Back Off Transmit power reduced to a level where receive signal is OK.

  34. Short Reach Mode • 86% of DC Server/switch links <30m • Less noise cancellation and power required • Echo, NEXT, and FEXT cancellers account for ~ 40% of the chip power consumption • Coding elements account for ~ 25% • remaining 35% of the chip’s area is taken up for the AFE In links <30m signal is analysed and cancellers are switched off . Better NEXT/FEXT means more cancellers can be switched off Requires better quality cabling .......

  35. Auto Negotiation • Existing function but new enhancements • Match link rate to utilisation • turns off PHY’s at lower speed • Estimated savings • 1Gbps  100Mbps = 2-4 watt saving • 2 watts x 8 NICs = 16 watts / server • x 1000 servers 16kw/hr = 140 Mw/hrs = £10k per year

  36. Wake-on-LAN (WOL) • Industry tests show server uses 70% power when idle • WOL closes nearly all power during inactive periods • Only tiny level of residual ‘standby’ power required to escape from hibernation

  37. Summary • Demand for bandwidth will increase • Need to plan for 40G now • Ethernet set to become principle protocol • Unified LAN infrastructure • EEE provide opportunity to reduce power consumption • Increasing financial pressure to reduce energy consumption

  38. Cutting Costs with Energy Efficient 40G Cabling Rob Cardigan

  39. Agenda • Immediate need for higher bandwidth • Technology designed to increase energy efficiency • Government legislation to reduce energy consumption • How can Nexans solutions help .....? • Cabling Infrastructure (Rob) • Management Systems (Tony)

  40. Impact of new technologies on Cabling • Require a Unified network – easy to maintain & manage • Can deliver all applications • from 1G to 10G to 40G • legacy equipment • power management = Converged Enhanced Ethernet • over 100m • improved design flexibility • more efficient and economical • Lower total cost

  41. LANmark Cabling • Nexans history of expertise in screened solutions • Consistent view that for 10G and above screening is the best solution • best way to overcome Alien Crosstalk • established technology – know how to install it • more practical solution to install • size, flexibility, cost • easier & cheaper to test

  42. 10G Support • LANmark-6A - provides best in class support for 10G: • Component compliant to EN 50173-1 and ISO 11801 Ed 2 • Enables Nexans to remove need for over-length cables • Can achieve 3 connector link of 10m • Panel to panel 5m link • 16+% reduction in cable volume • Reduced Fire Load • Improved Air Flow

  43. Category 6A Cat 6A will: • support Switch to Server links to 2016 minimum • support Auto Negotiation at 10G and below • support Power Back Off and WOL (Energy Efficient Ethernet)  but....

  44. But ...... Cat 6A won’t : • support 40G over 100m • offer more than limited throughput as an Ethernet platform for cluster computing and storage applications • support tangible power savings in Short Reach Mode  Need better quality cabling ...........

  45. Category 7A

  46. Category 7A Cat 7A will : • support Auto Negotiation at 40G and below • support fully implemented Energy Efficient Ethernet • Short Reach Mode • WOL • Power Back Off • provide high throughput Ethernet platform for cluster computing and storage applications

  47. LANmark-7APerformance Capability • LANmark-7A shown to have Shannon capacity of 52 Gbps • various Nexans internal study groups • external studies (Source: Penn State University)

  48. LANmark-7A What is it? • Cat 7 and GG45 standardised in ISO since 2002 • Cat 7A standardised 2008 -1000MHz solution • Connectors • Nexans GG45 (IEC 60603-7-71) • GG45 Cat 7A and RJ45 Cat 6A (and 6, 5e) • Preferred solution in ISO 11801 • Preferred Cat 7A connector Data Centres ISO/IEC 24764 • Tera (IEC 61076-3-104 ) • Non RJ45 compatible • Option in ISO 11801 and in ISO 24764 if cable sharing is more important than backwards compatibility

  49. Migration Strategy

  50. Migration Strategy • If we install Cat 6A then 40G migration is “rip and replace” • Need a cost effective alternative strategy....

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