Cisco Cisco Wide Area Application Services (WAAS) Modules for ISR Libro blanco
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Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Cisco Wide Area Application Services:
Optimizing Third-Generation Wireless Networks
Optimizing Third-Generation Wireless Networks
What You Will Learn
As wireless networks become faster and more reliable, they provide a viable alternative to traditional wired WAN
solutions, functioning either as primary access links or as backup links to wired services. Third-generation (3G)
wireless solutions tend to be relatively low-cost and high-speed and are often available in areas where acquiring
wired service may be difficult or impossible. However, 3G wireless is not without its shortcomings, which include
relatively high latency, asymmetric bandwidth limits, and packet loss. This document demonstrates how to address
some of these limitations through the use of Cisco
®
Wide Area Application Services (WAAS).
This document is based on a series of tests performed to gauge the performance characteristics of a 3G wireless
connection before and after optimization using Cisco WAAS. Each test uses real-world data and real applications to
demonstrate the improvement in overall user experience when the link is being optimized and accelerated. In all
cases, substantial performance gains are experienced when Cisco WAAS is deployed over a 3G wireless link.
Cisco WAAS Overview
Cisco WAAS is an industry-leading, easy-to-use solution that couples application acceleration technologies with
WAN optimization techniques to solve the application delivery dilemma, facilitating consolidation of distributed
servers and storage, improving performance of already centralized services, and maintaining performance levels for
services that are being centralized.
Cisco WAAS enables organizations to accomplish these primary IT objectives:
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Centralize applications and storage in the data center while maintaining LAN-like application performance
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Improve throughput and delivery of applications and application data to the enterprise edge to maintain or
improve user productivity and efficiency
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More efficiently utilize existing WAN connections to mitigate the need for costly WAN bandwidth upgrades
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Enable locally hosted IT services while reducing overall floor space consumed by branch-office devices
Figure 1 shows a typical customer deployment using Cisco WAAS.