Northern Arizona University Wi-Fi 2005 Flagstaff Campus Wireless Plan 4/11/2005

Assumptions 1.Maximum coverage all buildings 2.Major outdoor areas 3.Support multiple vendor cards 4.Support multiple systems Laptop Windows, Mac, Unix, othersLaptop Windows, Mac, Unix, others PDAsPDAs UnknownUnknown 5.Easy to use 6.Appropriate Security 7.Reliable 8.Ubiquitous

More Assumptions  Users –Students –Faculty –Staff –Guests –Conference –Residence Hall students

More Assumptions  Applications –Casual – –Web surfing –Collaboration –Presentations –Administrative Web Applications

Technology  b –11 Mbs –2.4 GHz –Most common network adapter –3 channels  g –54 Mbs –2.4 GHz –3 channels –Compatible with b network adapter –Downgrades everything to 11Mbs when one b system connects to AP.  a –54 Mbs –5 GHz –Smaller wireless footprint, requires more AP –8 channels

Access Point Technology  Shared bandwidth –All users on AP compete for bandwidth –Same technology as 10Mb Ethernet Hub  Each AP requires a wired connection.  Each AP requires power

SECURITY  Basic configuration has no encryption –Everyone can see your traffic  CISCO Public Secure Packet Forwarding –Limits lan sharing without going through router  Wireless Equivalent Privacy (WEP) –Wepcracker easy to break  Proprietary LEAP, PEAP –Requires compatible drivers on PC.  VLAN –Encrypts and tunnels to another network

The Site Survey 1.Place AP 2.Walk around and measure signal 3.Move AP 4.GOTO step 2  Try different antennas on AP  Balance Channels between AP  DOCUMENTATION  Changes over time

Interference  2.4Ghz b & g  Unlicensed  Cordless Phones  Microwave  Rogue APs, Routers, Bridges  Very difficult to troubleshoot

Current Status (22 Bldgs) University Union Building 30 Dubois Center Building 64 Learning Resources Center Building 61 Information Technology Services Building 54/54a Eastburn Education Center Building 27 Engineering and Technology Swing Space Bldg 98 Babbitt Administrative Center Building 51 Project Management Office Building 8 Physical Sciences Building 19 College of Business Building 70 Southwest Forest Science Complex Building 82 Wettaw Biology/Biochemistry Building 88 Gateway Center Bulding 43 Institute for Human Development Building 27A Hotel/Restaurant Management Buildings 32,33,33A Health Professions Building 66 Facilities Services Building 77 Colorado Plateau Studies Building 24 Riles Building 15 Biology Building 21 COMING SOON: SBS Ashurst Auditorium

The Plan  Network Security –Balance security & ease of use –Allow ports 80, 443, VPN protocols –Deploy Perfigo for network scanning –Evaluate 802.1x for future deployment

The Plan  Upgrade network core –3 core router upgrades needed –Upgrade to GB capacity per building –VLAN capacity –Quality of Service capacity –Intrusion Detection capability –Stability –Availability

The Plan  Additional Staffing –1 Outside Plant Technician –1 Network Operations Specialist –1 Academic Computing Help Desk  Training  Network Monitor and Tracking Software

One Time costs  $670,104 Core network Upgrades  $474,160 Academic Buildings  $73,532 Outdoor Areas  $285,237 Administrative Buildings  $381,898 Residence Halls

Annual Costs  $153,547 Hardware and Software Maintenance  $40,000 Outside Plant Technician  $40,000 Network Operation Specialist  $35,000 Academic computing Help Desk

Time Line  Year 1. –Core Network Upgrade –Hire NOC, Outside Plant –Academic Buildings  Year 2. –Outside Areas –Administrative Buildings  Year 3 –ResNet

Install APs & Building Switches  1. Academic Buildings  2. Outdoor Areas  3. Administrative Buildings  4.Residence Halls