When the IT department of the Las Vegas McCarran International Airport, the seventh largest destination airport in the United States, decided to provide the largest free public and private airport-wide wireless fidelity (Wi-Fi) service in the country, the security, scalability and control of the network were paramount concerns.
The scope and importance of the wireless network applications to be used by both the public and airport personnel were immense. The network would have to provide service from anywhere in the airport to the over 36 million travelers passing through McCarran each year -- and growing monthly by double digits.
But more important, McCarran viewed their Wi-Fi network as a strategic tool to help increase the efficiency of the airport, improve the experience of travelers within the airport and ultimately help to lower travel rates. Considered on of the most technologically sophisticated airports in the country, McCarran’s plans includes supporting a wide range of innovative new applications, such wireless dispatching of wheel chairs, wireless fastrack boarding, wireless-enabled flight information display systems and wireless reservation kiosks. In addition, the new wireless network would have to support airport productivity and operational applications. And finally, the airport also plans to offer airline carriers customized wireless services tailored to their specific needs.
The airport had already installed first generation wireless LAN (WLAN) access points (APs) in some of their conference rooms. But the IT department quickly realized that as a distributed solution it would scale poorly and would be costly. Numerous and expensive fat access points and switches for each wiring closet would be required. Because McCarran will have diverse public as well as private users and applications, there will also be greater contention, interference and security issues that the system would need to solve.
As a result of the size and potential complexity of the deployment, McCarran then focused on three main requirements for choosing an airport-wide wireless system:
1. Centralized security and management
2. Fast and easy scalability
3. Affordability, in terms of total cost of ownership and value
After carefully considering all the issues and requirements, the airport chose the centralized WLAN switching and security system from Aruba Wireless Networks. By using Aruba’s centralized system, McCarran realizes greater economies of scale because the system:
1. centralizes all security and RF controls,
2. provides the most advanced wireless security available today, and
3. requires less equipment and configuration time than alternative solutions.
“Aruba’s centralized system is an order of magnitude better solution than alternatives in terms of their advanced security, ease of management and scalability, and overall value,” said Gerard Hughes, IT director at McCarran International Airport.
“The system lets us easily and securely partition our RF environment so we can provide each carrier or vendor with their own virtual wireless network along with the requisite services and security they desire. Other airports have service providers that charge people to get online. We don’t because our system gives us the flexibility and controls to realize ROI in other ways such as providing service to companies doing business within the airport.”
Hughes also added that, unlike other airports, McCarran is able to provide free service because it owns and operates its own airport-wide telecommunications infrastructure.
“As for contention, Aruba provides an elegant solution. For instance, Aruba’s APs automatically search for channels with less interference. If they find one, they alter the central controller and make the change. And because the APs are low-cost thin APs, I can deploy lots of them everywhere, so a smaller number of users are contending for access to any given AP,” said Hughes.
McCarran has deployed both single and dual radio Aruba 802.11a/b/g access points (APs) throughout the airport. The network is centrally managed by an Aruba 5000 modular wireless LAN switching system in the main terminal along with the Aruba 2400 switch for distributed management. Both switches are equipped with Aruba’s ArubaOS VPN and intrusion prevention software modules. These modules provide McCarran with a statefull policy engine that can be used to enforce strict security and access controls for each user and the ability to automatically detect and eliminate rogue APs, wireless interference sources, ad-hoc networks and to block a variety of wireless intrusions and attacks.
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