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Surfing the Tsunami: Residence Hall Wireless Devices
- 1. Surfing the Tsunami Riding the Rising Tide of Wireless Devices and Moving to a Wireless-Only Environment Joint Presentation by:
- 2. Introductions John Pertalion - ASU Network Infrastructure and Control Systems Phillip Garrison - UNCG HRL Assistant Director for Technology Phillip Kluttz - UNCG ITS Wireless Network Engineer Natsu Carr - UNCG ITS Enterprise Networks and Support
- 3. Overview ASU and UNCG Wireless Environment Placement of Access Points Authentication Customer Support Planning for the Future
- 4. Universities At a Glance ASU UNCG Campus enrollment 17,589 18,478 Residential students 34% 30% Residential freshmen 99% 81%
- 5. The Tsunami at ASU Clients over the past year Max 12,500 Avg 7,260
- 6. The Tsunami at ASU Bandwidth over the past year
- 7. The Tsunami at ASU Clients over the past week
- 8. The Tsunami at ASU Bandwidth over the past week
- 9. ASU Wireless Environment Manufacturer – Aruba Networks Entire Campus 7 controllers 1,800 access points Residence Halls 4 controllers 900 access points 20 Residence Halls 5,100 beds
- 10. ASU Wireless Environment New Hardware Reduced the number of controllers Maximized the license counts on our best controllers Increased the number of access points Network Switches Spread the load of authorized clients Added to handle increase in number of APs New switches to accommodate PoE requirements
- 11. The Tsunami at UNCG 2013 2012 September Student Visitor Overall AVG 2,540 713 3,630 MAX 3,121 870 4,437 AVG 3,842 160 4,443 MAX 4,673 215 5,427 November Student Visitor Overall 3,109 649 4,166 3,606 768 4,821 5,429 742 5,625 8,279 1,296 8,943
- 12. The Tsunami at UNCG
- 13. The Tsunami at UNCG
- 14. UNCG Wireless Environment Manufacturer – Aruba / Blue Coat Entire Campus 4 controllers – 7000 series Almost 1,800 access points PacketShaper 12000 CacheFlow CF5000 Residence Halls Use campus controllers 761 access points 26 Residence Halls 4,750 beds
- 15. UNCG Wireless Environment Access Point Deployment: Hallway vs In-Room More success with In-Room deployment Consequences: Increase in the number of APs 1G connections for new APs Better coverage for 5 Ghz devices
- 16. Placement of APs Old technique Install APs in hallways Let signal bleed into rooms on both frequencies Problems Co-channel interference Signal quality in the rooms Other devices in the 2.4 Ghz spectrum
- 17. Placement of APs New technique Install APs in the rooms Use only 5 Ghz Results Reduces co-channel interference Improves signal quality in the rooms Avoids 2.4 Ghz problems
- 18. Hallway vs In-Room Which coverage map would you choose?
- 19. Authentication at ASU 802.1X authentication against AD radius servers and custom radius server Registration in our Netreg NAC system WPA2, dropped WPA AES, dropped TKIP due to N requirements Dropped 802.11b transmit rates
- 20. SSIDs UNCG-FacultyStaffStudent Secured Network Domain Authentication UNCG-Wireless Open with Captive Portal 768K bandwidth restriction Limited to basic Internet use HTTP Traffic
- 21. Authentication at UNCG UNCG-FacultyStaffStudent 802.1x Authenticated WPA2 Enterprise CloudPath Xpressconnect Automated Client Configuration UNCG-Wireless Captive Portal using Aruba ClearPass Password provided with valid email or text Account expiration after 8 hours
- 22. Customer Support General Configuration Support Phone support from the Service Desk Technology Support Center for Walk-ins Online Configuration Guides Non Configuration Support Coverage Network Configuration
- 23. Customer Support Student Staff Basic troubleshooting at staffed support center Detailed Training For Select Student Staff System Design, Authentication, Wifi Testing, Hardware Layout Nighthawk Support Team Client Configurations In Residence Halls Flipping Access Points Moving from 5Ghz to 2.4Ghz as needed
- 24. Planning for the Future Continuous Upgrading Installing new access points, ¼ complete Upgrade controllers to consolidate hardware Drop NAC Registration Requirement Allow access by credentials Redesign Visitor SSID Balance access of casual devices Add network requirements Move to the new licensing system
- 25. Planning for the Future Wireless ONLY = NO Ethernet in the Residence Halls Impacts: Wireless core infrastructure Coverage / density needs for future technologies (ac) Bandwidth needs Device support User support
- 26. Planning for the Future Wireless ONLY – Feedback Learning from our Residents Surveying Coverage and Perception Frequent surveys for feedback Following up on reports of poor coverage Addressing reality vs perception Lather, Rinse, Repeat Three to four surveys per academic year
- 27. Planning for the Future Wireless ONLY – Support Device Support Desktop support – USB wireless adapters Home devices – Register up to 3 devices User Support Skill-based routing at the Service Desk Going to the customer
- 28. Summary ASU and UNCG Wireless Environment Placement of Access Points Authentication Customer Support Planning for the Future
- 29. Questions Phillip Garrison – UNCG – HRL phillip_garrison@uncg.edu, 336 334-5636 Phillip Kluttz – UNCG – ITS p_kluttz@uncg.edu, 336 334-4762 John Pertalion – ASU – ITS pertalionaj@appstate.edu, 828 262-7909