Cwna Guide to Wireless Lan

2008 WordsApr 28, 20119 Pages
CWNA Guide to Wireless LANs, Second Edition Chapter Six Planning and Deploying a Wireless LAN Objectives • • • • Explain the steps for planning a wireless network Tell how to design a wireless LAN Describe the steps in deploying a wireless network Explain the ways in which to provide user support CWNA Guide to Wireless LANs, Second Edition 2 Planning for a Wireless Network • “If you fail to plan, then you plan to fail” • Some steps involved in planning wireless networks similar to planning wired network – Many steps significantly different • Basic planning steps: – Assessing needs – Weighing benefits – Calculating costs CWNA Guide to Wireless LANs, Second Edition 3 Assessing Needs: The Need for Mobility •…show more content…
g Return on Investment (ROI) • Return on investment (ROI): Standard measure of profitability of a project – Total cost of project • Hardware, software, implementation costs, training, operations staff, maintenance staff and services, and connectivity fees – Less tangible costs • Workload management and customer satisfaction • Several models for calculating ROI CWNA Guide to Wireless LANs, Second Edition 13 Calculating Return on Investment (continued) • Intel Corporation’s wireless LAN model: – – – – Implement a pilot Develop a report Assemble data Calculate ROI Table 6-2: Three-year WLAN costs and benefits CWNA Guide to Wireless LANs, Second Edition 14 Calculating Return on Investment (continued) Figure 6-2: Intel’s ROI model for WLANs CWNA Guide to Wireless LANs, Second Edition 15 Designing the Wireless LAN • Involves determining: – Which deployment scenario is best – Which IEEE wireless network standard should be used – Type of AP management to implemented – Where wireless devices should be located CWNA Guide to Wireless LANs, Second Edition 16 Determining the Deployment Scenario • First step in designing a WLAN is to decide on correct deployment scenario: – Ad hoc: Not connected to wired infrastructure • Useful where wireless infrastructure does not exist or services to remote networks not required – Infrastructure: WLAN devices connect to wired corporate network via AP • Most corporate wireless LANs – Hotspot:

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