Understanding the WAN

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A powerpoint used to explain a Wide Area Network

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  • This slideshow is an effort to explain the structure and significance of a WAN – Wide Area Network. Presented by Carl Heininger and Jim Gates
  • Understanding the WAN

    1. 1. Understanding the WAN Wide Area Network Carl Heininger and Jim Gates
    2. 2. Let’s Build a WAN <ul><li>We start with one computer </li></ul>
    3. 3. And then there were two <ul><li>We connect to another one, and we’ve got a (very small) network </li></ul>
    4. 4. And so on…
    5. 5. And so forth Very fast connection between machines
    6. 6. Let’s add some services <ul><li>Service might be “share drives” </li></ul><ul><li>Looks like your school’s network, now </li></ul>
    7. 7. A Look at TWO District Buildings
    8. 8. Let’s Connect Them Very Fast Connection
    9. 9. Connect ALL buildings
    10. 10. Let’s package this for clarity Making your DISTRICT’S Network
    11. 11. Let’s connect your district to the Internet The Internet Cloud
    12. 12. Why is it called “The Cloud?”
    13. 13. Your “clicks” travel the cloud The Internet Cloud
    14. 14. Where can you improve your service? Get a broader “pipe” to the cloud  The Internet Cloud
    15. 15. So, where does the WAN come in <ul><li>What if we connected our districts together on our OWN backbone? </li></ul><ul><li>What if our backbone was VERY fast? </li></ul><ul><li>What if our services were on the WAN, as well? </li></ul><ul><li>What if we didn’t have to fight the “cloud?” </li></ul><ul><li>Answer - Then we’d have a WAN – a Wide Area Network </li></ul>
    16. 16. Are there limiting variables? 45mb 5 mb 1.5 mb
    17. 17. What’s the point of connecting with a slow connection? <ul><li>Security of data </li></ul><ul><ul><li>Data does not enter the cloud, therefore not easily intercepted </li></ul></ul><ul><li>More reliable connection </li></ul><ul><ul><li>Less congestion means… </li></ul></ul><ul><ul><ul><li>Better streaming of videos (less choppy) </li></ul></ul></ul><ul><ul><ul><li>Better video conferencing quality </li></ul></ul></ul><ul><li>Services on the WAN don’t use Internet bandwidth </li></ul><ul><ul><li>Two different data paths </li></ul></ul>
    18. 18. What’s on the WAN now? <ul><li>Internet2 </li></ul><ul><li>UnitedStreaming </li></ul><ul><li>Plato </li></ul><ul><li>Your website? </li></ul><ul><li>E-Locker </li></ul><ul><li>Blackboard </li></ul><ul><li>Powerschool </li></ul><ul><li>SchoolWires </li></ul>
    19. 19. What’s possible? <ul><li>Multicasting video streams </li></ul><ul><ul><li>“broadcast” training sessions, professional development activities, etc </li></ul></ul><ul><ul><li>Similar to a TV network </li></ul></ul><ul><li>Content “Islands” </li></ul><ul><ul><li>Your district could house a blog server for others to share </li></ul></ul><ul><ul><li>Another district houses digital videos to share the load </li></ul></ul>
    20. 20. What does it mean to teaching and learning? <ul><li>Services that are otherwise not used because of security concerns can now be offered </li></ul><ul><li>Classrooms can connect across the WAN </li></ul><ul><li>Share teachers </li></ul><ul><li>Students can collaborate with students in other districts </li></ul>
    21. 21. So the question now is… Why AREN’T you on the WAN?

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