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There never seems to be enough WAN bandwidth. In the 1990’s, dedicated point products emerged to help address this problem, using a combination of compression and Quality of Service (QoS) to get more out of limited WAN links.
These technologies are still important today, allowing IT administrators to guarantee bandwidth for critical applications while controlling the effects of other traffic. With WAN optimization, enterprises can get more out of their congested WAN links, saving money by delaying the purchase of additional bandwidth.
However, WAN optimization point products only provide short term gains when used in isolation. In addition, they do not address latency issues across the WAN, which have a significant impact on application performance. Lastly, even when WAN bandwidth is doubled, it is still significantly smaller than the throughput provided on a LAN. As a result, link optimization is not enough to deliver LAN-like application performance.
While compression and QoS are vital, they must be included with other application acceleration techniques to provide a comprehensive solution for application delivery. Silver Peak, for example, combines the following bandwidth management and application acceleration tools as part of its Local Instance Networking solution:
- Network Memory™ to recognize and store repetitive data patterns for local information delivery
- State of the art cross-flow data compression and header compression to increase bandwidth utilization
- Advanced queuing and scheduling, policy based decisions, and application tagging for QoS classification and enforcement
- Latency and loss mitigation using TCP acceleration and adaptive Forward Error Correction (FEC)
Silver Peak satisfies a full breadth of application delivery needs. In addition to optimizing WAN bandwidth and ensuring proper handling of business critical applications, the Silver Peak solution dramatically reduces perceived application response time, while enabling centralized control of branch office infrastructure. ilver Peak offers a strategic solution for application delivery, going beyond the short term gains that come with bandwidth band-aids.
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