Белая книга для Cisco Cisco 4402 Wireless LAN Controller
Total Economic Impact Study of Unified Wireless Network
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Organizations typically use financial discount rates (the interest rate used in cash flow analysis)
between 8% and 16%, based on their current environment. Readers are urged to consult with the
finance department to determine the most appropriate discount rate to use within their own
organizations.
between 8% and 16%, based on their current environment. Readers are urged to consult with the
finance department to determine the most appropriate discount rate to use within their own
organizations.
In addition to the financial assumptions used to construct the cash flow analysis, Table 3 provides
salary assumptions used within this analysis.
salary assumptions used within this analysis.
Table 3: Salary Assumptions
Ref.
Metric
Calculation
Value
A1 Hours
per
week
40
A2
Weeks per year
52
A3
Hours per year (M-F, 9-5)
2,080
A4
Hours per year (24x7)
8,736
A5
Fully-loaded annual salary for network administrator
$100,000
A6 Hourly
(A5/A3)
$48
Source: Forrester Research, Inc.
Costs
This section exhibits the overall investment in a Cisco Unified Wireless Network based on the
characteristics of the composite organization. Costs include the investment to: 1) upgrade non-
software-upgradeable Aironet access points to lightweight access points; 2) implement WLAN
controllers; 3) deploy WCS; and 4) initial and on-going administrative costs.
characteristics of the composite organization. Costs include the investment to: 1) upgrade non-
software-upgradeable Aironet access points to lightweight access points; 2) implement WLAN
controllers; 3) deploy WCS; and 4) initial and on-going administrative costs.
Total Access Point Costs
For organizations that are migrating to a Unified Wireless Network, Cisco offers free software to
upgrade existing 802.11 a/b/g standalone access points to operate as 802.11 a/b/g lightweight
access points. In some instances, an organization may have Aironet access points that cannot be
migrated using the free software. At that time, the organization is required to purchase new Aironet
802.11 a/b/g or 802.11n access points to complete the migration. The list price for 1130 and 1240
models are $699 and $899, respectively. The list price for Aironet 1250s is $1299.
upgrade existing 802.11 a/b/g standalone access points to operate as 802.11 a/b/g lightweight
access points. In some instances, an organization may have Aironet access points that cannot be
migrated using the free software. At that time, the organization is required to purchase new Aironet
802.11 a/b/g or 802.11n access points to complete the migration. The list price for 1130 and 1240
models are $699 and $899, respectively. The list price for Aironet 1250s is $1299.
Forrester assumes that the composite organization has a total of 750 existing access points. The
composite organization has 50 Aironet access points that cannot be migrated using the free
software. The organization trades these access points for lightweight Aironet 802.11 a/b/g models.
To calculate the incremental cost required to replace non-software upgradeable access points, we
applied an average cost of $799 (($699+$899)/2) per access point. Table 4 shows the cost of
$39,950 (50 access points*$799 per access point).
composite organization has 50 Aironet access points that cannot be migrated using the free
software. The organization trades these access points for lightweight Aironet 802.11 a/b/g models.
To calculate the incremental cost required to replace non-software upgradeable access points, we
applied an average cost of $799 (($699+$899)/2) per access point. Table 4 shows the cost of
$39,950 (50 access points*$799 per access point).