Application Delivery Optimization or Application Delivery Controllers emerged from load-balancing solutions to improve the availability and reliability of websites. The many business-critical applications becoming browser-based is a major motivation for organizations investing in these solutions. Application delivery controllers (ADCs) reside within the datacenter, typically in front of web servers. They are deployed asymmetrically (only within the datacenter), and are designed to improve the availability, performance and security of web or Internet Protocol-based applications. ADCs enhance the performance of web-based applications by providing services at the network and application layers.

PowerLink™ intelligently and efficiently distributes user traffic among multiple, diverse WAN and ISP links. PowerLink capabilities include WAN and ISP link aggregation; automated inbound and outbound load balancing and failover; site failover and fallback, and VPN load balancing and redundancy.

FAQ terms to describe WAN optimization