Roaming - Belkin F5D6001 User Manual

P74056_F5D6001_man(fp).qxd 5/3/2002 5:09 PM Page 28
wireless networking wireless networking
The diagram below illustrates how a wireless access point acts as a bridge
between the wireless BSS and the wired network.
Desktop PC
Desktop PC
Switch
Desktop PC
Switch
Desktop PC
Wireless
BSS2
Access Point
Wireless
Basic Service
Access Point
Set (BSS)
ESS
Wireless
BSS1
Access Point

Roaming

More than one wireless access point can be used to increase the wireless
coverage in a wireless LAN. The diagram below shows two wireless access
points configured to extend coverage beyond that of a single unit. The
overlapping area of each BSS is called an "Extended Service Set (ESS)".
When a wireless computer enters the ESS, the computer evaluates the
signal strength and link quality, then chooses the wireless access point
with the best-quality signal and link. This activity is known as "roaming".
To configure your wireless access points to allow roaming inside of the
wireless network, each unit will be assigned the same Service Set Identifier
(SSID). Strategically placing multiple units around an office or inside of
the home can extend the wireless coverage to the entire premise. The
illustration below shows two Basic Service Sets overlapping to form an
Extended Service Set.
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