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3-5
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. All SMC wireless network card
adapters and SMC2555W-AG wireless access points within a
specific ESS must be configured with the same SSID.
File
Server
Switch
Desktop PC
Access Point
<BSS2>
Notebook with Wireless
PC CardAdapter
Seamless Roaming
<ESS>
Switch
Access Point
<BSS1>
PC with Wireless
PCI Adapter
Notebook with Wireless
PC CardAdapter