Infrastructure Wireless Lan For Roaming Wireless Pcs - 3Com 8250 User Manual

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
I
NFRASTRUCTURE
The Basic Service Set (BSS) is the communications domain for each 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. A wireless infrastructure can also support roaming for mobile
workers. More than one access point can be configured to create an Extended
Service Set (ESS). By placing the access points so that a continuous coverage area
is created, wireless users within this ESS can roam freely.
Desktop PC
Switch
Access Point
PC with Wireless
PCI Adapter
Wired LAN Extension
to Wireless Adapters
File
Server
Switch
Notebook with Wireless
PC Card Adapter
Access Point
PC with Wireless
PCI Adapter
W LAN
IRELESS
File
Server
Switch
Access Point
Notebook with Wireless
PC Card Adapter
<ESS>
<BSS1>
Seamless Roaming
8
R W
FOR OAMING
Notebook with Wireless
PC Card Adapter
<BSS2>
PC
IRELESS S