ZyXEL N4100 Guia Do Utilizador

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Appendix D Wireless LANs
N4100 User’s Guide
314
Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is 
enabled, wireless client A and B can access the wired network and communicate 
with each other. When Intra-BSS is disabled, wireless client A and B can still 
access the wired network but cannot communicate with each other.
Figure 188   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.