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Configuring the IEEE 802.11b Radio

114

Using Multiple Access Points and Roaming Wireless End

Devices

For larger or more complex environments, you can install multiple

access points so wireless end devices can roam from one access points

to another. Multiple access points establish coverage areas or cells

similar to those of a cellular telephone network. End devices can connect

with and access point that is within range and belongs to the same

wireless network.

Figure 41 Wireless Network with Multiple Access Points

Figure 41 illustrates wireless end devices roaming between the access

points to communicate with the host and other end devices.

An end device initiates a roam when it attaches to a new access point.

The access point sends an attached message to the root access point,

which in turn forwards a detach message to the previous access point,

allowing each access point to update it’s forwarding database.

Intermediate access points monitor these exchanges and updates their

forwarding databases.

With the access point’s multichannel architecture, you can have more

than one access point within the same cell area to increase throughput

and provide redundancy.

Ethernet

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Allied-telesis AT-WL2411 Manual de usuario Pagina 114