1. IT Board Workshop March 18, 2013 11:00 AM

2. What is Bandwidth? The amount of traffic or data transfer passing through a website, plus, the size of the pipe that this data passes through, plus the speed of the pipe.

3. Simple Bandwidth Analogy The number of lanes on the highway and the number of cars on the highway; no matter how wide you build the road, there will always be more cars that its capacity can handle  If you are the only car on a highway, you can travel very quickly especially during late in the evening or early morning  If you are stuck in the middle of rush hour, you may travel very slowly since all of the lanes are being used up.

4. Simple Bandwidth Analogy The information highway can have traffic jams, just like any other. We tend to think of bandwidth as a personal right, but it’s too finite, and its limits become apparent as the highway gets more crowded.  We experience bandwidth traffic jams during any high-processing period such as grade reporting, open enrollment, and payroll  Time of day also impacts internet speed. Network is much faster between 10:00 pm and 5:00 am

5. State Educational Technology Directors Association (SETDA)  Ensure sufficient broadband in schools.  Need reliable, robust broadband wireless or WiFi connectivity to implement a rich digital learning environment.  Seamless flow between online and offline resources to encourage internet research, multimedia streaming, online assessments, and interactivity within digital materials.  Sufficient broadband that can support social media and video activities taking place in the classroom at the same time that a full grade of students is going online to begin their high-stakes testing.  Internet connectivity needs to be foolproof. When teachers stop trusting the network, they often put away the devices and revert to traditional teaching methods that require no digital content at all. This group agrees that districts have and are focusing on product and have forgotten on how to deliver that product.

6. Connectivity Levels  Basic - emailing, browsing websites and surfing  Emerging Reliance – collaboration, video downloads, assignments through a Learning Management System  Technology Rich - video Skyping, uploading audio and photo files, or streaming A movie from Netflix or iTunes.

7. Utopia of Technology According to the article in, Computer World, the recommendation for a technology rich environment for today’s educational communities should be:  Internet Bandwidth – 38.1 gigabits per second  Bandwidth per student – 100.0 kilobits per second However, due to the high cost, not even post-secondary institutions can support this model

8. Where We are Today Based on 130,000 Computers:  Current Internet Bandwidth – 2 giga bits per second  Current bandwidth per computer – 16.13 kilo bits per second per device

9. Where We Need to Be Based on the Potential of 500,000 Computers; a result of BYOD  Future Required Internet Bandwidth (With Funding Approval) - 10 giga bits per second  Future bandwidth per computer – 20.1 kilobits per second

10. Current Typical School Configuration  Typical Configuration  100 meg Cisco Router  100 meg Tipping Point  10 gig Power Over Ethernet Data Switches which provides 10 gig backbone  Meru Wireless Controller  With Access Points Strategically Position  All main distribution frames and intermediate distribution frames interconnected via fiber  Traffic Shaping Is Done on a School by School Basis  Fiber to all schools – While other business and school Districts may complete their Internet Connection via copper cable, all M-DCPS schools complete via fiber

11. Current Typical School Network

12. Future School Network

13. What the Pieces Do  Router – Entrance or demarcation point to the school. Is the decision point for managing requests to dadeschools.net or to the internet.  Tipping Point – Manages or shapes the incoming traffic to be most efficient.  WiFi - Allows an electronic device to exchange data wirelessly (using radio waves) over a computer network, including high-speed Internet connections.  Network Switches – Connects to the machines located in the offices and classrooms.  Backbone – Circuitry or connector used to control or distribute all communications.

14. The Data Center Infrastructure Plan Based on Industry recommendations and related educational communities we will achieve emerging reliance of:  Internet Bandwidth – 5.0 gigabits per second  Bandwidth per student – 10.0 kilobits per second by implementing the following:

15. The Data Center Infrastructure Plan Security Appliances:  Firewalls, Intrusion Prevention $1,300,000 (Tipping Point) & switches Data Storage:  Drive Arrays, Controllers$1,500,000  Switching Infrastructure$500,000  Data Fiber Switches$800,000 (Current components end of life 2016) Servers:  Blades$450,000 (needed for expected increased capacity in instructional technology delivery) Content Filter$800,000 Total$5,350,000

16. What the Pieces Do Security Appliances - Includes firewalls and intrusion prevention devices. Used to allow appropriate content through the network while blocking unwanted traffic. Allows for the detection and proactive mitigation of attacks from the external Internet and from within the internal cloud. Data Storage - Includes the drive arrays, disk controllers and fiber switches needed to support current and future District enterprise applications. Servers - Includes new server blades and chassis to support current and future District enterprise applications. Content Filter - New content filter needed to allow for variable Internet policies between student and teacher. Current solution won’t scale.

17. The Internet to Us  Currently – Service is provided through a 2 gig connection through services provided by AT&T.  Future – To handle projected growth increasing to 5 gig through AT&T with the flexibility to lower this amount by school if warranted.