Белая книга для Cisco Cisco 4404 Wireless LAN Controller

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2.  Forrester interviewed Cisco marketing and technical sales teams to fully understand the 

potential (or intended) value proposition of Cisco Unified Wireless Network. 

3.  Forrester conducted a series of in-depth interviews with four organizations currently using 

Cisco Unified Wireless Network infrastructure.  

4.  Forrester constructed a financial model representative of the interviews. This model can be 

found in the TEI Framework section below. 

5.  Forrester created a composite organization based on the interviews and populated the 

framework using data from the interviews as applied to the composite organization. 

Forrester’s study yielded several key findings: 

•  ROI. Based on the interviews with four existing customers, Forrester constructed a TEI 

framework for a composite organization and the associated ROI analysis illustrating the 
financial impact areas. As seen in Table 1, the risk-adjusted ROI for our composite 
company is 92% with a breakeven point (payback period) after deployment of 15 months. 

•  Benefits. The organizations that we interviewed migrated to the centrally managed, 

wireless architecture where access points are connected to a central controller for ease of 
management and consistency of performance to reduce the operational cost of managing 
their wireless implementations previously based on standalone or autonomous access 
points. By standardizing and centrally managing the wireless network, they have reduced 
on-going administrative costs, reduced site monitoring costs associated with RF monitoring 
and rogue detection, improved end-user productivity, and reduced the IT effort to assign 
and monitor guest access. The present value (PV) of the risk-adjusted total benefits is 
equal to $647,529. 

•  Costs. The cost to migrate from autonomous wireless solutions to a centrally managed, 

wireless architecture includes: the incremental cost to upgrade non-software upgradeable 
access points, the cost to implement controllers to centrally manage access points, the 
software license fees to implement wireless control system (WCS), and initial and on-going 
administrative costs. The PV of the risk-adjusted total costs equates to 

$337,086

. The 

reader should note that the Cisco product costs are list prices and do not include any 
discounts. 

Table 1 illustrates the risk-adjusted cash flow for the composite organization, based on data and 
characteristics obtained during the interview process. Forrester risk-adjusts these values to take 
into account the potential uncertainty that exists in estimating the costs and benefits of a technology 
investment. The risk-adjusted value is meant to provide a conservative estimation, incorporating 
any potential risk factors that may later impact the original cost and benefit estimates. For a more 
in-depth explanation of risk and risk adjustments used in this study, please see the Risk section. 
(Note: numbers have been rounded throughout this document.)