H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 21)

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again, the AP will establish a connection with AC 1 acting as the primary AC and disconnect from AC
2.
Dual work mode
Figure 8 Dual work mode
Dual work mode indicates that an AC can provide both master and subordinate connections. An AC will
act as the master for some APs and act as the subordinate for some other APs. In this scenario, AC 1 acts
as the master for AP 1 and subordinate for AP 2. Similarly, AC 2 acts as the master for AP 2 and
subordinate for AP 1.
WLAN topologies
WLAN topologies include:
• Single/Multi BSS
• Single/Multi-ESS
• VLAN-based WLAN
• Centralized WLAN
Single/Multi BSS
The coverage of an AP is a basic service set (BSS). Each BSS is identified by a Basic Service Set Identifier
(BSSID). The most basic WLAN network can be established with only one BSS. All wireless clients
associate with the same BSS. If these clients have the same authorization, they can communicate with
each other. Figure 9 shows a single-BSS WLAN.