Basic Data Communications

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In this 30 Minute audio presentation Jim Sevier of Convergence Readiness gives a simple overview of the function of data communications. This is a basic course easily understood by anyone looking to improve their knowledge in information technologies.

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  • You can understand Delay is the problem
  • Basic Data Communications

    1. 1. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com BETTER IDEAS. BETTER BUSINESS. CONVERGENCE READINESS cnvrg.com
    2. 2. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com Data Communications - Infrastructure ● What Problem(s) does Data Communications solve? ● Access to information not local to me ● Reduced time gaining access to information
    3. 3. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com Basic Data Communications ● Data Center Core Switches ● Aggregation Switches ● Access Switches
    4. 4. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com Yesterday, Today and Tomorrow ● Originally, Switches performed the task of “Store and Forward” ● Pass you up to something that knows what to do with you ● Bridge ● Today Switches make most routing decisions ● Wait while I check your destination ● Layers (1 through 7) ● Tomorrow they will act as one
    5. 5. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com How Do Things Get From Point A to B? ● Works likes the Postal Service ● Source Address (your computer) ● Destination Address (the computer you are trying to reach) ● Delivered by the source Postal delivery person (Access Switch) to a source Mail Sorting Center (Aggregation Switch) and up to a Central Postal Center (Core Switch) where it is routed back out to the destination Mail Sorting Center and out to a destination Postal delivery person.
    6. 6. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com The Bits and Bytes of Things Virus/Malware The word “Cat” takes up 6 bytes or 48 bits One character =
    7. 7. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com Reality Mimicking Television
    8. 8. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com Getting Data From Point A to B • It all started with a Dial Up Modem • Now we wait for things to load over IP Loading…Please Wait
    9. 9. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com While You Are Waiting ● 3 milliseconds (Fly’s wing flap) ● 5 ms (Hummingbird wing flap) ● 33 ms (one frame of video) ● 100 ms (time between gear change on Ferrari) ● 200 ms (human facial recognition) ● 400 ms (pitch to reach the strike zone) ● 86,400,000 ms (one earth day) Loading…Please Wait
    10. 10. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com Here to Google and Back Again in 12ms You are here
    11. 11. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com What This Stuff Looks Like Core Data Switch Aggregation Data Switch Access Data Switch Data Equipment Rack
    12. 12. CONVERGENCE READINESS BETTERIDEAS.BETTERBUSINESScnvrg.com This is Google

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