The ABC

1

• The ABCs of Wireless Networking An Introduction
  to WLAN
• Tom Seto
• AMTec 2005

2
Alphabet Soup!

• 802.11a, b, g, n, e?
• What is this alphabet soup?

3
Agenda

• WPAN, WLAN, WWAN
• IEEE 802.11x
• Other Acronyms
• Wireless Security
• Wired Networks
• AirUC and RezNet

4
Wireless Area Networks
5
Current WLAN Technologies
6
Upcoming WLAN Technologies
7
Current WWAN Technologies
8
Upcoming WWAN Technologies
9
WLAN Security
10
Fiber Optic Backbone

• Fiber optics backbone
• 816 kilometers of fiber
• 32 Fiber nodes on campus
• Remote direct connections to Mount Royal College
  and University of Alberta
• Secure / Non Secure Networks
• Internet Access

11
Network Connections

• Over 10,000 Active Network Connections to support
  Research, Administration and Teaching
• Central Network Management (SNMP)
• 10/100/1000 Mbps Speeds
• Gigabit backbone links
• AirUC wireless network

12
User Networks
13
Uof C Wireless

• AirUC http//www.ucalgary.ca/it/computing/netserv/
  wireless
• VPN access http//www.ucalgary.ca/it/computing/net
  serv/vpn
• RezNet http//www.ucalgary.ca/reznet

14
AirUC

• Wireless network for all IT username holders

15
RezNet

• 150 Access Points (APs)
• 9 Buildings
• 7 Buildings have wired access as well
• 1600 pillows
• Checkin is Chaos
• Patch detection
• Virus scanning
• Need automated process

16
WLAN

• Two Models of WLAN Technologies
• FAT Access Points
• What were used to.
• Access points contain the intelligence
• Can run standalone
• Thin Access Points
• Access points have little or no intelligence
• Controlled by Wireless Switches
• Cannot run on their own
• Easier configuration and management

17
Building WLANs

• Installing APs
• Physical Security
• Power over Ethernet (POE) 802.3af
• AP management
• Dead APs - probes

18
Hotspots

• Most Carriers have hotspots
• Telus, Bell, Rogers, FatPort, etc.
• Banding together to allow access to anyones
  hotspot but billed by your carrier