User's Manual

7
2-2 Roaming
Infrastructure mode also supports roaming capabilities for mobile users More than one BSS can be configured
as an Extended Service Set (ESS). The continuous network allows users to roam freely within an ESS. All U58H004
PCs and Access Point within one ESS must be configured with the same ESSID and use the same radio channel.
Ess
BSS1
BSS2
乙太網路
File Server
Desktop PC
Desktop PC
Desktop PC with
T60L198/T60L244
Desktop PC with
T60L198/T60L244
Access Point Access Point
Notebook with
T60L198/T60L244
Notebook with
T60L198/T60L244
Fig.4 Roaming in an Extended Service Set (ESS)
Before enabling an ESS with roaming capability, choosing a feasible radio channel and optimum Access Point
position is recommended. Proper Access Point positioning combined with a clear radio signal will greatly enhance
performance.