Enhancing the WAN Experience with PfR and WAAS
By Cisco Systems
Published August 2007; Posted October 2007
As applications are being centralized and users become increasingly distributed, the performance limitations of WAN such as limited bandwidth, significantly longer latency, and packet loss are seriously slowing down application delivery. Cisco® Wide Area Application Services (WAAS) and Cisco Performance Routing (PfR) can work together to intelligently optimize application delivery across the WAN - at both the application level and network level. Although Cisco WAAS provides WAN optimization and application-level acceleration to improve application performance over the WAN, Cisco PfR routes data packets through the best IP path between disparate network locations. Specifically, PfR provides best-path decision-making based on network latency, packet loss, monetary WAN usage cost, jitter, link capacity, and more. Cisco PfR complements Cisco WAAS to improve application delivery and help enable infrastructure consolidation while providing optimized path selection.
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