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ZyXEL AG-200 User’s Guide
WLAN Networking 2-3
Figure 2-3 Infrastructure Network Example
2.1.5 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 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, the ZyXEL
AG-200 in wireless station B automatically switches the channel to the one used by access point 2 in order
to stay connected to the network.