NGN to mitigate Climate Change

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Brief look at staus of Climate Change and impacts from/into ICTs. Identify the roles of NGN to mitigate climate change and prposed new model of ntwork architecture.

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NGN to mitigate Climate Change

  1. 1. 저탄소 차세대네트워크 기술 표준화 이 재섭 Chairman of ITU-T SG 13
  2. 2. Content <ul><li>Impacts of Network into CC </li></ul><ul><li>Functional view of Network </li></ul><ul><li>Energy view of Network </li></ul><ul><li>Key Issues for Greening Network </li></ul><ul><li>Conclusion </li></ul>
  3. 3. Impacts of ICTs into CC <ul><li>Overall Impacts of ICTs into Climate Change: 2~2.5 % </li></ul><ul><li>Details within ICTs </li></ul>* Ref: ITU-T FG on ICT&CC Deliverable 3 “Methodology” 1. Impacts of Network into CC
  4. 4. Energy consumption trends of Network (ref. Internet) <ul><li>Internet traffic is increasing exponentially </li></ul><ul><li>New network services: Tele-working, High Definition Video etc </li></ul><ul><li>Network power consumption will increase by 13 times (from 2006->2025), although ICT average will increase by 5 times </li></ul>Energy saving in Network should be a important issue * Ref: FGFN-C25 “Energy Saving Network Technologies”, Fujitsu Ltd, 11. 2009 1. Impacts of Network into CC
  5. 5. Details of Energy consumption trends of Network <ul><li>Network equipments: Router+Switch+Transmission+Control+Management+ Accounting+others </li></ul><ul><li>Network Portion of Energy consumption: 17% (2006)  43% (2025) </li></ul>* Ref: ITU-T FG on ICT&CC Deliverable 3 “Methodology” (Billions kWh, 2005 – 2025) 1. Impacts of Network into CC
  6. 6. BT networks before NGN 1. Impacts of Network into CC IP ATM PSTN DSL KStream PSTN Leased lines PDH Fibre Copper SDH access PDH access End User ~5.5k sites ~2k sites ~300 sites ~100 sites ~15 sites MSH -SDH ~1k sites SDH VC-12 PDH access SDH VC-4
  7. 7. BT Networks after the NGN 5. Case Study – 21CN 1. Impacts of Network into CC IP-MPLS-WDM DSL Fibre & Copper Copper Agg Box End User ~5.5k sites ~100 sites Class 5 Call Server Content WWW ISP Multi-service access Converged core Wireless
  8. 8. Impacts of NGN to reduce GHG in Telecom operations ~5.5k sites ~100 sites ~5.5k sites ~2k sites ~300 sites ~100 sites ~15 sites ~1k sites 30 ~ 40% Reduction of GHG Number of nodes before NGN Number of nodes after NGN Number of nodes in Access Networks # of nodes in Core Networks 1. Impacts of Network into CC
  9. 9. Traditional functional configuration of Network 2. Functional view of Network <ul><li>Vertical view : Function oriented configurations </li></ul><ul><ul><li>Mainly based on OSI 7 Layer Reference Model </li></ul></ul><ul><ul><li>Each function places in each layer: L1 ~ L7 </li></ul></ul><ul><ul><li>Easy to look at operation from bottom to top (or vice versa) </li></ul></ul><ul><ul><li>Difficult to identify Systems and Geographical distributions view </li></ul></ul>Not easy to evaluate overall/details on energy consumption view L3 L2 L1 L7 L6 L5 L4 L3 L2 L1 L3 L2 L1 L7 L6 L5 L4 L3 L2 L1
  10. 10. Traditional functional configuration of Network 2. Functional view of Network <ul><li>Horizontal view: Geographic based distribution </li></ul><ul><ul><li>Mainly based on specific roles (e.g. end user, access and core etc) </li></ul></ul><ul><ul><li>Configuring end-end connections </li></ul></ul><ul><ul><li>Easy to look at communication/service flows </li></ul></ul><ul><ul><li>Difficult to identify each functions </li></ul></ul>easy to evaluate energy consumption based on each role Core Network Core Network Access Net Access Net Acess Net Access Net Access Net Acess Net TE TE TE TE TE TE ~ km ~ 10s km ~ 10s km ~ km Service connectivity Traffic aggregation Traffic routing Service connectivity Traffic aggregation Traffic routing
  11. 11. Key Features of Horizontal Network configuration * Ref: FGFN-C25 “Energy Saving Network Technologies”, Fujitsu Ltd, 11. 2009 2. Functional view of Network
  12. 12. Overall components of Network 3. Energy view of Network <ul><li>Today, not easy to identify clear boundary for “a Network”: depend on business models (including services) </li></ul><ul><li>Generalize Functional component parts: </li></ul><ul><ul><li>Application/Service support: Service platforms </li></ul></ul><ul><ul><li>Service Control: Service Subscription, Request and delivery control </li></ul></ul><ul><ul><li>Transport Control: Connectivity and Capability control </li></ul></ul><ul><ul><li>Transport: Connection and Traffic delivery </li></ul></ul><ul><ul><li>Physical part: Physical connection (wires, duct etc) </li></ul></ul><ul><li>Generalize Horizontal component parts: </li></ul><ul><ul><li>Home Network: Terminals, Home Gateway (Modem), wires etc </li></ul></ul><ul><ul><li>Access Network: Edge Node, Access transmission (DSL, FLC), DSLAM/MDF, Wires (including Radio), Duct and Local Office, etc. </li></ul></ul><ul><ul><li>Core Network: Platforms, Routers, SDH/OF (Optical Fiber), Duct and Transit Office, etc. </li></ul></ul>Not easy to evaluate energy consumption aspects
  13. 13. New Eyesight of Network Functins 3. Energy view of Network <ul><li>May need a new eyesight to look at functions of network for well reflecting of “Energy Providing and Consumption aspects” </li></ul><ul><li>May separate following views: </li></ul><ul><ul><li>Operating and Maintaining Physical Components: Electricity, Processors Storages, Bus, Displays and others </li></ul></ul><ul><ul><li>Operating and Maintaining “Actions caused by Physical operation”: Routing, Switching, Control, Displaying, Provision Service and others </li></ul></ul><ul><ul><li>Results from those operation and maintain: Applications and Services </li></ul></ul>Electric Power Power Distribution BUS P P P P F F F F Network Systems Service Control Routing OAM L7 L6 L5 L4 L3 L2 L1 Electric Power Power Distribution BUS P P P P F F F F
  14. 14. New Functional Configuration of Network Systems 3. Energy view of Network <ul><li>Proposed a new functional configuration model of network systems for well reflecting of “Energy Consumption aspects” </li></ul><ul><ul><li>Baseware: The logical entities which allow application and middleware functions to run, communicate with other functions by interfacing with network functions, and interface to users </li></ul></ul><ul><ul><li>Middleware: The logical entities of middleware ( Operating and Maintaining “Actions caused by operation of Baseware”: Routing, Switching, Control, Displaying, Provision Service and others ) ) </li></ul></ul><ul><ul><li>Application/Service: The logical entities of Applications ( Results from those operation and maintain by Baseware and middleware) </li></ul></ul>Application/ Service Middleware Baseware
  15. 15. New Functional Configuration of Networks 3. Energy view of Network <ul><li>Use of new functional model of network systems </li></ul><ul><li>Network will be configured combination of those functions with following Interfaces: </li></ul><ul><ul><li>BIF (Baseware Interface): Between Basewares </li></ul></ul><ul><ul><li>MIF (Middleware Interface): Between Middlewares </li></ul></ul><ul><ul><li>AIF (Application Interface): Bewteen Applications/Services </li></ul></ul>Application/ Service Middleware Baseware Baseware Baseware Middleware Baseware AIF MIF MIF BIF BIF BIF BIF End User TE End User TE Service Server Application/ Service Middleware Baseware Application/ Service Middleware Baseware
  16. 16. Key issues on Energy Saving aspects <ul><li>Number of Operating Offices: Central Offices, Transit Offices, IDC Centers </li></ul><ul><li>Network Planning and Provisioning: Current Internet mainly rely on “ Over Provision ”  Change to “ Optimize Provision ” </li></ul><ul><li>Capacity of “Transmission”, “Switching” and “Routing”  Impacts to number of operating offices </li></ul><ul><li>Reachability to User: </li></ul><ul><ul><li>Distance: Legacy copper based (less than 4km)  Optics (~10s km) </li></ul></ul><ul><ul><li>Number of connecting Terminals: Aggregation capacity (Broadband and Hugeband ~ bigger than 10Gb/s) </li></ul></ul><ul><li>Efficiency of Network: </li></ul><ul><ul><li>More effective Routing and Switching: Echo Routing and Switching </li></ul></ul><ul><ul><li>Guaranty of service delivery: avoid continuous trial for services </li></ul></ul><ul><ul><li>Secure services and applications: enhance use of ICT services (Tele-conference and Tele-banking etc.) </li></ul></ul><ul><ul><li>Effective system operation including end user terminal devices: adopt more actively “Standby Mode” </li></ul></ul><ul><li>Other issues </li></ul>4. Key Issues for Greening Network
  17. 17. Examples of energy saving points in Network Operation Energy saving by GPON * Ref: ITU-T FG on ICT&CC Deliverable 4 “Direct and Indirect Impact of ITU-T Standards” 4. Key Issues for Greening Network * Ref: FGFN-C25 “Energy Saving Network Technologies”, Fujitsu Ltd, 11. 2009 Energy saving points of Router Energy consumption of one router: 7.1 kW x 24 hours x 365 days = 62,600kWh
  18. 18. Example of Trials: ECO Networking Technology * Ref: FGFN-C25 “Energy Saving Network Technologies”, Fujitsu Ltd, 11. 2009 <ul><li>ECO Routing </li></ul><ul><ul><li>Aggregate traffic into energy-saving path </li></ul></ul><ul><ul><li>Implement sleep mode for routers where possible </li></ul></ul><ul><li>ECO Switching </li></ul><ul><ul><li>Forward packets on timeslot basis with time scheduling </li></ul></ul><ul><ul><li>Buffer-less forwarding without packet loss </li></ul></ul><ul><ul><li>No routing table necessary </li></ul></ul>* ECO: Energy Cost saving Overlay 4. Key Issues for Greening Network
  19. 19. Features of Energy consumption of Network * Ref: FGFN-C25 “Energy Saving Network Technologies”, Fujitsu Ltd, 11. 2009 <ul><li>Network capacity or device arrangement is designed based on on-peak traffic </li></ul><ul><li>Power consumption of routers is almost independent of the volume of traffic, and almost constant </li></ul><ul><li>Energy is saved by putting routers to sleep when traffic does not flow </li></ul><ul><li>Accordingly, energy is saved by using the minimum number of routers and putting other routers to sleep </li></ul>4. Key Issues for Greening Network
  20. 20. 5. Conclusion <ul><li>ICTs had mainly involved in limited industries such as Telecom, computing etc. </li></ul><ul><li>But ICTs are now becoming essential parts of life </li></ul><ul><li>Furthermore ICTs is being important parts of social, national and international infrastructures </li></ul>Expansion roles of ICTs <ul><li>ICTs are rather environment friend than other industrial technologies but also have contribution to environment change </li></ul><ul><li>ICTs are being widely used whole processes of protecting envir onment </li></ul><ul><li>Several ICTs technologies are used at the field of environment </li></ul>Roles of ICTs in Protecting Environments <ul><li>NGN is a common infrastructure for enabling ICTs and other industries using ICTs </li></ul><ul><li>NGN provides benefits to mitigate GHG by itself including support various capabilities for protection of environments </li></ul>Position of NGN in Protecting Environments
  21. 21. Objects for Protecting Environments 1. Protecting Environments <ul><li>Green House Gas emission </li></ul><ul><li>Pollutions of natural environment: Air, Water etc. </li></ul><ul><li>Natural disaster: earth quake, fire, thnami etc </li></ul><ul><li>Other natural disaster </li></ul>Protect Natural Environment <ul><li>Historical monuments </li></ul><ul><li>Artistic items: Paints, Sculptures etc. </li></ul><ul><li>Musical items: Musical instruments etc. </li></ul><ul><li>Literary items: Books, Records etc. </li></ul><ul><li>Infrastructural items: Building of Museum, Theater for Performance etc. </li></ul><ul><li>Other cultural environments </li></ul>Protect Cultural Environment Impacts
  22. 22. Service Cap. 3 Service Cap. 2 Role of ICT for Protecting Environments 1. Protecting Environments <ul><li>Processes for protecting environments </li></ul>Network Infrastructures (including Baseware: H/W Systems, Devices etc.) Platform A Platform B Platform C Service Cap. 1 Service Cap. 3 Service Cap. 2 Service Cap. 1 Service Cap. 3 Service Cap. 2 Service Cap. 1 ICTs Monitoring Warning Protect Maintain Improve
  23. 23. Thank you for your attention !!!

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