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Northern Arizona University

Northern Arizona University . Wi-Fi 2005 Flagstaff Campus Wireless Plan. 4/11/2005. Assumptions. Maximum coverage all buildings Major outdoor areas Support multiple vendor cards Support multiple systems Laptop Windows, Mac, Unix, others PDAs Unknown Easy to use Appropriate Security

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Northern Arizona University

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

  2. Assumptions • Maximum coverage all buildings • Major outdoor areas • Support multiple vendor cards • Support multiple systems • Laptop Windows, Mac, Unix, others • PDAs • Unknown • Easy to use • Appropriate Security • Reliable • Ubiquitous

  3. More Assumptions • Users • Students • Faculty • Staff • Guests • Conference • Residence Hall students

  4. More Assumptions • Applications • Casual • E-mail • Web surfing • Collaboration • Presentations • Administrative Web Applications

  5. Technology • 802.11b • 11 Mbs • 2.4 GHz • Most common network adapter • 3 channels • 802.11g • 54 Mbs • 2.4 GHz • 3 channels • Compatible with 802.11b network adapter • Downgrades everything to 11Mbs when one 802.11b system connects to AP. • 802.11a • 54 Mbs • 5 GHz • Smaller wireless footprint, requires more AP • 8 channels

  6. 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

  7. 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

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

  9. Interference • 2.4Ghz 802.11b & 802.11g • Unlicensed • Cordless Phones • Microwave • Rogue APs, Routers, Bridges • Very difficult to troubleshoot

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

  11. 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

  12. 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

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

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

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

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

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

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