Designing Enterprise Wireless Networks © 2004 Cisco Systems, Inc. All rights reserved. Reviewing the Wireless LAN Solution ARCH v1.210-1.

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Designing Enterprise Wireless Networks © 2004 Cisco Systems, Inc. All rights reserved. Reviewing the Wireless LAN Solution ARCH v

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Emerging Wireless Enterprise Network Needs Wireless overlay to wired LAN Office mobility Common areas and meeting rooms Leased or temporary offices Teleworkers Shared offices Office expansion

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Cisco Wireless Architecture

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Access Point Coverage Users can select the data rate. Lower data rates result in greater coverage. Antenna choice affects size and shape of coverage. A site survey is required to account for physical environment.

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Cell Distribution

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Wireless Standards

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Access Points and Client Adapters

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Workgroup Bridge

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Wireless Bridge Building-to-building connectivity at line of sight Cost-effective alternative to leased line (T1/E1) Point-to-point and point-to-multipoint Inline power over Ethernet No government license required

© 2004 Cisco Systems, Inc. All rights reserved. ARCH v Summary A WLAN implementation adds a mobile component to the traditional office LAN and provides LAN coverage in areas where cabling is impractical or inefficient. A WLAN includes an access point communicating over radio frequency to wireless clients. The data rate, power level, and antenna choice affect the size of the coverage area of a single wireless cell, which affects the number of access points required in a specific implementation. The IEEE standard is a group of protocol specifications for WLANs. A WLAN solution includes access points, client adapters, workgroup bridges, bridges, antennas, and accessories.