Configuration Guide Configuring FAT APs
Client1 and Client2 can access each other and access hosts in the network.
Figure 1-1
Radio1 is the first RF interface of the FAT AP.
Client1 and Client2 are wireless clients.
The FAT AP, Client1 and Client2 comprise BSS1 and BSS1 belongs to ESS1.
Deployment
Run the IEEE802.11 protocol on the FAT AP, Client1 and Client2 to implement access and authentication of the
wireless clients.
Configure and manage the FAT AP.
Run 802.11a or 802.11b on the FAT AP because the FAT AP provides on Radio 1.
Create only one WLAN on the FAT AP, namely, ESS1. ESS1 must be mapped to Radio1, namely BSS1.
1.2.2 Configuring Multiple ESSs
Scenario
A multiple-ESS topology applies to a network where multiple logical management domains (ESSs) are available. When a
mobile user accesses a FAT AP, the user can be added to an available ESS.
Generally, a FAT AP provides multiple logical ESSs. The FAT AP broadcasts the current information of the ESSs configured
on the FAT AP by sending beacon or probe response frames in the network. Clients can select ESSs for access based on
actual requirements.
Different ESS domains can be configured on the FAT AP. After being configured, the FAT AP is allowed to announce and
accept users in the ESS domains after the users are authenticated.
As shown in Figure 1-2, Client1 and Client 2 access the 2.4 GHz band. Client1 belongs to ESS1 whereas Client2 belongs to
Client2. Client1 belongs to BSS1 whereas Client2 belongs to BSS2.
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