Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.01.03 or greater

3-9
Wireless Local Area Networks (WLANs)
Configuration Options: Normal Versus Advanced Mode
Figure 3-5. Viewing Six WLANs Assigned to a Radio (Normal)
RP radios send beacon frames to announce the WLANs that they support. The
source of a beacon frame is a BSSID, and each beacon can include only one
SSID. Therefore, if you enable more than four WLANs, RPs support all, but
only announce four, of them. The WLAN that each BSSID announces is the
primary WLAN—in normal mode, always the WLAN with the lowest index
number on that BSSID. RPs respond to probes about non-primary WLANs, so
stations can connect to one of these WLANs if users manually input the
correct SSID.
In the Network Setup > Radio > WLAN Assignment screen, a green check mark
under the beacon icon indicates the SSID that the RP announces. For example,
in Figure 3-5, the RP uses BSSID 1 to send beacons for SSID A, but not for
SSID E.
In other words, with normal configuration, WLANs 5 through 16 always
operate in closed system, and you cannot change such operation in their
WLAN settings.