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WAN optimization: Network vs. application layer optimization

Larry Cormier, SVP of marketing for Silver Peak Systems | Dec. 6, 2011
The application layer of the Open System Interconnection (OSI) stack has long been regarded as a focal point for wide area network (WAN) optimization. Efforts to optimize application delivery were centered here because the pain was rooted in optimizing only a handful of specific applications at branch or remote offices.

Network-based WAN optimizers provide the advantage of optimizing all current and future enterprise applications. Whether enterprises update to new versions of their applications or update existing solutions, by default, network WAN optimizers continue to operate in lock-step with the dynamic application environment.

While there are a number of key return-on-investment (ROI) drivers for deploying WAN optimization, including number of locations, total size of the WAN and the nature of the traffic, being able to holistically address all of these concerns at the network layer means they can be addressed by a single appliance.

Larry Cormier is SVP of marketing for Silver Peak Systems.

Silver Peak is a privately held company in Santa Clara, Calif., that improves backup, replication and recovery between data centers and facilitates branch office server and storage centralization by improving application performance across the Wide Area Network (WAN). Visit for more information.


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