ZyXEL Communications G-3000 User's Guide download pdf (Page 165)

ZyAIR G-1000 Access Point User’s Guide

Wireless LAN and IEEE 802.11 C-3

Infrastructure Wireless LAN Configuration

For infrastructure WLANs, multiple access points (APs) link the WLAN to the wired network and allow

users to efficiently share network resources. The access points not only provide communication with the

wired network but also mediate wireless network traffic in the immediate neighborhood. Multiple access

points can provide wireless coverage for an entire building or campus. All communications between

stations or between a station and a wired network client go through the access point.

The Extended Service Set (ESS) shown in the next figure consists of a series of overlapping BSSs (each

containing an Access Point) connected together by means of a Distribution System (DS). Although the DS

could be any type of network, it is almost invariably an Ethernet LAN. Mobile nodes can roam between

access points and seamless campus-wide coverage is possible.

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ZyXEL Communications G-3000 User's Guide Page 165