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4. Scalability. WAN optimization systems were designed and built for large networks from the very beginning. They are able to scale to the largest networks without any risks in efficiency and reliability.

IT can no longer manage large branch networks without taking into account the critical applications on them. Network managers must take a different approach to optimize branch offices and mobile workers. The strategy needs to start with the application’s perspective and the associated performance requirements to manage the entire network. Some of these newer solutions serve as "application SLAs." These application SLAs can be used as an objective not only to manage end-user flows such as optimization and acceleration, but also to analyze the results like measurement and support of strategic decisions. Such systems are intelligent enough and able to understand all local traffic situations at all times and enable managers to make decisions in an autonomous way in line with objectives.

These days, most large, multi-office enterprises want network availability 24x7 and trouble-free access to networked applications. To meet these needs, companies require application traffic and performance management solutions that have kept pace with the technology. It also requires a shift in strategy to focus more on application performance and less on bandwidth and infrastructure. Managing large branch office networks is challenging. Yet with the new breed of WAN Optimization Systems that simply and automatically manage WAN application traffic, successful management of the enterprise WAN is well within the reach of most large organizations.