Wireless LANs remain one of the bright spots in an otherwise lackluster networking market. But service providers, with a few exceptions, haven't really caught on to the services aspect of the Wi-Fi revolution. Sure, companies like Boingo and Wayport are beginning to make a business providing hot spot services, and Cometa has jumped into the pool too (creating a huge splash), but there isn't yet a widespread availability of Wi-Fi services in public places (beyond Starbucks/T-Mobile).

One reason for this is certainly a hesitancy for any service provider to invest in any new service these days. What might be an even bigger reason is the difficulty of installing and managing a secure, high quality service that customers will actually pay for. It's easy enough for a café to get a $50/month DSL line and throw an open access point on the end of it - as a freebie for their customers. It's a lot harder to properly install and manage multiple access points, keep unauthorized customers off the network, and deliver enough quality of service to keep paying customers happy.

Most access points today are designed as stand-alone devices, independent systems if you will; so a hot spot operator looking at a deployment must consider the time to individually manage and maintain each access point when making a business case. This isn't a pretty picture. And it doesn't allow the access points to work together to maintain service when outages occur, or traffic in one area of the hot spot becomes too much for that access point to handle.

We've spent some time recently speaking with start-ups that think they can help with this problem by providing centralized switched management for access points. Most of these companies are looking at the enterprise (where "rogue" access points and security issues abound) as a primary market, but their centralized solutions may also solve a problem for public access providers.

For example, Aruba Wireless Networks' "wireless LAN switching system" is designed to provide for wireless networks what Ethernet switches provided for LANs all those years ago.  For a large hot spot deployment , like an airport or convention center, the centralized wireless LAN switch controls all of the access points throughout the deployment. Installation is eased in a couple of ways: the wireless LAN switch calculates optimal access point locations without a detailed (and tens of thousands of dollars expensive) site survey, and a single Ethernet Cat 5 cable delivers data, power and RS-232 console control to each access point.  Aruba's goal is to make deployment plug and play.  Plug in an access point and the WLAN switch discovers it and automatically configures it, including channel and power settings.

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