ZyXEL Communications AX Series User Manual

Appendix B Wireless LANs
AX/DX/EX/PX Series User’s Guide
520
Figure 291 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.
An ESSID (ESS IDentification) uniquely identifies each ESS. All access points and their associated WiFi
clients within the same ESS must have the same ESSID in order to communicate.
ZD

ZyXEL Communications AX Series Specifications

General

Brand	ZyXEL Communications
Model	AX Series
Category	Network Router
Language	English