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Network Architecture of WLAN Roaming
Figure 6-2 shows the network architecture of WLAN roaming. AC manage APs on the WLAN. AP_1 and AP_2 associate with AC. A STA roams on the WLAN. During roaming, the STA associates with different APs. The roaming process is as follows: The STA moves from the coverage area of AP_1 to AP_2. Since AP_1 and AP_2 both connect to AC, the STA implements Intra-AC Roaming.
