Infrastructure; Roaming; Figure 5 Application: Infrastructure - ZyXEL Communications ZyXEL ZyAIR G-470 User Manual

G-470 User's Guide

1.1.2.1 Infrastructure

Infrastructure mode allows your ZyXEL Device to connect to a network via an access point
(AP). Through the AP, you can access the Internet or the wired network behind the AP.

Figure 5 Application: Infrastructure

1.1.2.2 Roaming

In an infrastructure network, wireless stations are able to switch from one BSS to another as
they move between the coverage areas. During this period, the wireless stations maintain
uninterrupted connection to the network. This is known as roaming. As the wireless station
moves from place to place, it is responsible for choosing the most appropriate AP depending
on the signal strength, network utilization or other factors.
The following figure depicts a roaming example. When Wireless Station B moves to position
X, its wireless device automatically switches the channel to the one used by access point AP 2
in order to stay connected to the network.
24 Chapter 1 Getting Started