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22
Chapter 2 Network Configuration and Planning
Infrastructure Wireless LAN
The access point can also provide access to a wired LAN for wireless
workstations. An integrated wired/wireless LAN is called an Infrastructure
configuration. A Basic Service Set (BSS) consists of a group of wireless PC users,
and an access point that is directly connected to the wired LAN. Each wireless PC
in this BSS can talk to any computer in its wireless group via a radio link, or
access other computers or network resources in the wired LAN infrastructure via
the access point.
The infrastructure configuration not only extends the accessibility of wireless PCs
to the wired LAN, but also increases the effective wireless transmission range for
wireless PCs by passing their signal through one or more access points.
A wireless infrastructure can be used for access to a central database, or for
connection between mobile workers, as shown in the following figure.
Desktop PC
Infrastructure Wireless LAN for Roaming Wireless PCs
The Basic Service Set (BSS) is the communications domain for each wireless
access point. For wireless PCs that do not need to support roaming, set the domain
identifier (SSID) for the wireless card to the SSID of the access point to which
you want to connect. Check with your administrator for the SSID of the access
point or bridge to which he wants you to connect.
214853-B
Wired LAN Extension
to Wireless Adapters
File
Server
Switch
Access Point
PC with Wireless
PCI Adapter
Notebook with Wireless
PC Card Adapter
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