One startup is trying to get rid of the controller to save customers some important dollars.
Aerohive is hawking a new approach where policy and management control is distributed in a cooperative way across access points in a hive architecture -- sans controller.
"It enables a next-generation, controller-less wireless LAN architecture which gives users all the management and security they buy controllers for but without the problems associated with controllers like cost, performance and complexity," Aerohive CEO David Flynn told internetnews.com.
Aerohive also uses what Flynn described as a "fairly standard enterprise class access point," with hardware that includes a chipset and radio from vendors that other wireless vendors use.
"The hardware is not the secret sauce here. The magic is the software that makes it all work," Flynn said.
This "magic software" enables multiple HiveAPs to work together in a hive fashion to implement a controller-less wireless network. HiveAP includes stateful roaming, a feature that allows a user to move across an enterprise campus without dropping connection.
"So if clients are moving around on the network from access point to access point, we coordinate between the access points to seamlessly hand off," Flynn explained.
User credentials are also handed off between HiveAPs in a roaming situation, so users can remain logged into secure applications. The HiveAPs also intelligently distribute network loads across the Hive to boost wireless performance.
The Best Path Forwarding feature further improves wireless network performance by forwarding the traffic down to the highest speed available link without the bottleneck of backhaul to the controller.
Flynn explained that in the traditional controller-based architecture, there is a backhaul of traffic back to the controller to enable security and management.
"Our architecture gives the same management, mobility and security but with a cleaner network architecture that eliminates backhaul -- there is no single point of failure and no bottleneck to a single point of aggregation," Flynn said.