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GOOD MORNING AND THANK YOU!

GOOD MORNING AND THANK YOU!. 1 of 320. Jon Lee Core Vision IT Solutions Wireless Practice Manager jlee@cvits.com 414.455.0729 25 years in technology sales, design and engineering Background includes Cisco, Ciena , Dell/Force10 and Xirrus. Agenda. Wireless basics Designing for 1:1

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GOOD MORNING AND THANK YOU!

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  1. GOOD MORNINGANDTHANK YOU! 1 of 320

  2. Jon Lee Core Vision IT Solutions Wireless Practice Manager jlee@cvits.com 414.455.0729 25 years in technology sales, design and engineering Background includes Cisco, Ciena, Dell/Force10 and Xirrus

  3. Agenda • Wireless basics • Designing for 1:1 • 802.11ac • Common Core Testing

  4. Wireless Basics

  5. 2 Bands • 2.4GHz is reaching end of the line for performance • Future is in 5GHz and other frequencies 802.11ad >5Gbps 60GHz 802.11n-Draft 300Mbps 5GHz 802.11n 600Mbps 802.11ac 1Gbps 802.11a 54Mbps 1999 2000 2003 2004 2007 2008 2009 2010 2012 2013 2011 2.4GHz 802.11n 300Mbps (non-bond) 802.11b 11Mbps 802.11g 54Mbps 802.11n-Draft 150Mbps (non-bond)

  6. Bands and Channels Two frequency bands used in Wi-Fi (27 channels) • 2.4GHz – used by 802.11b/g/n clients • 3 non-overlapping channels • Limited bandwidth, prone to interference • 5GHz – used by 802.11a/n clients • 24non-overlapping channels • 8X the bandwidth, Less potential for interference 2.4GHz 5GHz

  7. Design it to Perform • Wireless networks must be designedfor tablets & netbooks • Spotty coverage insufficient • Signal must be solid in all areas • –65dBm minimum • Perform Live Site Surveys • Full coverage for both Wi-Fi bands • 2.4GHz as the Lowest Common Denominator • 5GHz for most tablets & BEST performance

  8. Designing for 1:1

  9. Some Considerations • Applications • How much bandwidth? • End Devices • What type of devices? • How many? • Bandwidth • Internal (switching) • External (Internet pipe) • Building Construction • Budget

  10. “Old” Designs

  11. “New” Designs

  12. Math Behind Wireless • 300 Mbps radios • 300 Mbps is duplex number so…. • 150 Mbps is real number • Subtract Ethernet overhead (30%) • Leaves just a little over 100 Mbps • 450 Mbps radios (same math with slight improvements) • Leaves about 150 Mbps • Hi-def video is about 7 Mbps • 25 students uses about 175 Mbps • Hopefully ALL are following along watching SAME video • How to get around it? Multicast at wireless edge/Layer 7 controls • This is why 1 radio PER CLASSROOM or one (1) 2-radio AP per classroom are designed

  13. 802.11ac (not air conditioning)

  14. 802.11ac highlights • Developed 2011 to 2013 • Standards Approved Jan. 2014 • Few AP’s available support ac (residential) • Commercial AP’s now starting to ship • Few end devices supporting ac (Apple, Samsung, HTC) • Wave 2 will begin this year, particularly for commercial and education • 3 data streams @ 433 Mbps yields about 1.3 Gbps • Yields roughly 500 Mbps switching equivalent • Could support 70 users all streaming high def video! (2 rooms per AP) • Design using standard 5G spectrum coverage

  15. Common Core Testing

  16. Common Core in Wisconsin • Mandated 2014-2015 school year • Are you ready? • Do you have a plan? • Start thinking about it! • AZ estimated cost to be $250 Million to have all schools ready • E-rate NOT funding infrastructure for 2013/14 school year • E-rate expected to fund for 2014/2015 • Get close to your Superintendent (Bonds, grants)

  17. What You Need To Plan For • Infrastructure- Gig Speed backbone is the goal • Fiber, Wi-Fi, Switches, Routers, etc. that can handle 1 Gbps load • The ability to handle a minimum of 35+ devices per classroom (1:1 and BYOD) • That number is of course low. The real number is 50-75 devices within 2 years. • Wi-Fi must be able to operate at the same level as a wired network • Must be able to test up to 500-1,000 students at the same time for an extended period • The stress on the network is growing exponentially! • Broadband- More speed Captain! • The Federal and state initiatives are calling for 500 Mbps to each school site and 1Gbps within 3 years to the schools site • Currently schools avg 10 Mb per site • Mobile Devices by the bucket load • Laptops, tablets, Netbook now. Production of such devices has reached a record and yet they have only shipped 5% of what is needed to meet the demand for the coming 2 years.

  18. Possible Options • Mobile Cart WITH AP • Redesign wireless network • Relocate and augment? • New AP’s? 802.11ac? • Add more AP’s? • Channel interference (reduce power on AP’s) • Gartner predicted that by 2015, wireless networks installed just a few years ago would be obsolete

  19. Questions? Please ask! Jon Lee Core Vision IT Solutions Wireless Practice Manager jlee@cvits.com 414.455.0729

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