Extricom EXSW800, Руководство пользователя

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The Extricom EXSW-800 WLAN Switch User Guide 3
Chapter
1
Introducing the Extricom Wireless
LAN System
Wireless LAN (WLAN) enables mobile users to connect their laptops, PDAs, and wireless phones
to the enterprise network instantly and effortlessly anywhere in the enterprise. However, using
WLAN in a large enterprise has been hindered by the challenges of current WLAN technology,
such as poor coverage, low capacity, high latency mobility, and expensive site-survey and
maintenance costs.
Extricom’s WLAN introduces a completely new, patent-pending, Interference-Free
TM
architecture
that eliminates the coverage and capacity limitations and tradeoffs of traditional WLAN
architecture. The need for cell planning and site surveys, a highly expensive aspect of owning a
WLAN, is also eliminated. In addition, Extricom’s novel approach does away with most of the
WLAN maintenance. Extricom’s WLAN is specifically designed to provide increased network
capacity, seamless mobility, high level of security, and easy installation and configuration.
Overview of the Extricom WLAN System
The Extricom WLAN consists of a wireless switch (EXSW-800) and Access Points (EXRP20). The
Extricom WLAN system architecture replaces the concept of a cell planning based Access Point
(AP) deployment topology with blankets of continuous coverage for the entire enterprise.
Blanket coverage provides full coverage of a WLAN deployment area with multiple channel
blankets . In this channel blankets based system, every AP throughout the deployment area uses the
same channels. This kind of solution is enabled by Extricom’s advanced technology.
Figure 1. Two Channel Blanket Coverage