H3C Technologies H3C MSR 50 - Manual (Page 8)

1-7
e
Dual work mode
Figure 1-8 Dual work mod
Dual work mode indicates that an AC can provide both master and slave connections. An AC will act as
the master for some APs and act as the slave for some other APs. In the above scenario, AC 1 acts as
the master for AP 1 and slave for AP 2. Similarly, AC 2 acts as the master for AP 2 and slave for AP 1.
WLAN Topologies
WLAN Topologies for ACs
WLAN topologies for ACs consist of:
z Single BSS
z Multi-ESS
z VLAN-based WLAN
z Centralized WLAN
Single BSS
The coverage of an AP is called a basic service set (BSS). Each BSS is identified by a 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 1-9
shows a single-BSS WLAN.