Optimizing WAN throughput with compression

摘要

Wide-area network optimization has become an important technique to improve the performance and throughput of all sorts of networked applications, including some applications that depend on optimization to function over WAN links at all. WAN optimization focuses primarily on reducing the volume of data on the link. However, pure data reduction is not sufficient to achieve optimization. Data reduction, and all other optimization techniques, must be applied in a way that minimizes message latency through the device and guarantees that all users receive a fair share of the total available WAN bandwidth; both of which are critical QoS issues. Unfortunately, the goals of bandwidth optimization, latency minimization, and fair access are often mutually antagonistic when processing the bursty traffic typical of network transmissions.