Introduction to Wan Acceleration Devices

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An introduction to Wan accelerators as presented to a group of network engineers.

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Introduction to Wan Acceleration Devices

  1. 1. Introduction to Wan Acceleration Devices Rishabh Dangwal About me:Trivia geek, redbull addict & Independent security enthusiastic. Currently employed at Orange Business Services www.theprohack.com
  2. 2. Agenda  The Elephant & the mice  Spoke end issues  Wan Acceleration  Wan Optimization  The Techniques
  3. 3. Lets talk about..  A mice..& An Elephant (I am not kidding..)
  4. 4. A *Closer* look ..  Short-live TCP connections  <1 sec  Causes timeouts (due to 3WHS)  Long lived TCP connections  >1 hour  Consistent, but take huge network resource
  5. 5. Issues at Spoke End  Application performance  Bandwidth choking  Latency/jitter/chatty applications  Complex Infra  Different types of servers  Storage  Data Security? Compliances ?
  6. 6. Issues at Spoke End continued..  QOS ?  Reactive measure  Almost useless in solving congestion issues  Increase Bandwidth ?  Is not a solution  Rise of hybrid networks.
  7. 7. WAN Acceleration?  Techniques for increasing data-transfer efficiency across WAN  At core is WAN Caching  Maturing at a good rate
  8. 8. WAN Acceleration continued..  Kick in Wan accelerators & we have got –  Less local servers  Achieve LAN Level app performance  Centralize  Converge  Preserve services
  9. 9. Wan Optimization  Traditional Wan Optimization  Results  Changes header info  Applications break, services may not work  *Extra* integration required  Moooore downtime Image credits : Cisco
  10. 10. Wan Optimization Continued..  Latest Deployment  Results  NO header changed*  NO app misbehavior*  Data Offloading  Less headaches *till the time your connectivity is stable Image Credits: Cisco
  11. 11. The Techniques  Selective Acknowledgement  Window Scaling, Protocol matching  Latency Mitigation  Reduce Data Redundancy
  12. 12. The Techniques continued..  Pattern Matching  Fingerprinting & Reconstruction  Load Shedding  Chunk Storing  & much *much* more..
  13. 13. Bottomline • Is one of the next big things • Need of hour in complex hybrid networks • BigData over WAN?
  14. 14. Questions ?
  15. 15. Please put a static route for Questions, queries and Feedback on this presentation towards admin@theprohack.com

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