ZyXEL Communications 100-NH User Manual

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 Appendix E Wireless LANs
NWA1000 Series User’s Guide
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disabled, wireless client A and B can still access the wired network but cannot communicate with 
each other.
Figure 90   
Basic Service Set
ESS
An Extended Service Set (ESS) consists of a series of overlapping BSSs, each containing an access 
point, with each access point connected together by a wired network. This wired connection 
between APs is called a Distribution System (DS).
This type of wireless LAN topology is called an Infrastructure WLAN. The Access Points not only 
provide communication with the wired network but also mediate wireless network traffic in the 
immediate neighborhood.