GOOD MORNING AND THANK YOU! 1 of 320

Jon Lee Core Vision IT Solutions Wireless Practice Manager years in technology sales, design and engineering Background includes Cisco, Ciena, Dell/Force10 and Xirrus

Agenda Wireless basics Designing for 1: ac Common Core Testing

Wireless Basics

2 Bands 2.4GHz is reaching end of the line for performance Future is in 5GHz and other frequencies a 54Mbps n 600Mbps ad >5Gbps 60GHz g 54Mbps ac 1Gbps n-Draft 300Mbps GHz 5GHz n-Draft 150Mbps (non-bond) n 300Mbps (non-bond) b 11Mbps

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

Design it to Perform Wireless networks must be designed for 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

Designing for 1:1

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

“Old” Designs

“New” Designs

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

802.11ac (not air conditioning)

802.11ac highlights Developed 2011 to 2013 Standards Approved Jan 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 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

Common Core Testing

Common Core in Wisconsin Mandated 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)

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 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.

Possible Options Mobile Cart WITH AP Redesign wireless network – Relocate and augment? – New AP’s? ac? – 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

Questions? Please ask! Jon Lee Core Vision IT Solutions Wireless Practice Manager