Viewing Wlan Statistics - Brocade Communications Systems RFS6000 System Reference Manual

4
NOTE
Legacy Clients supporting WEP encryption and new Clients supporting 802.11i WPA/WPA2-TKIP
encryption can not co-exist on the same WLAN. The multi-cipher support feature allows you to
enable these two device types to co-exist on the same WLAN.
This feature allows using a combination of WEP encryption and 802.11i encryption on a per WLAN
basis. This is done by creating WLANs with the same SSID but with different BSSIDs and security
cipher combinations. The APs broadcast different beacons for the same SSID. The Clients
associate with the AP based on its configuration of SSID, BSSID, and security cipher.
This feature supports the following combinations of security ciphers:
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These security cipher combinations are available on a per WLAN basis.
The following are the limitations of this feature:
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Viewing WLAN Statistics

The Statistics screen displays read-only statistics for each WLAN. Use this information to assess if
configuration changes are required to improve network performance. If a more detailed set of
WLAN statistics is required, select a WLAN from the table and click the Details button.
To view WLAN configuration details:
1. Select Network > Wireless LANs from the main menu tree.
140
WEP 64 and WPA/WPA2-TKIP
WEP 64 and WPA-CCPMP
WEP 128 and WPA/WPA2-TKIP
WEP 128 and WPA-CCMP
WPA-CCMP and WPA/WPA2-TKIP
You should make sure that the WLANs created with the same SSIDs are grouped into different
WLAN groups. This is because WLANs with common SSID should have unique BSSIDs.
WEP 64 and TKIP/CCMP ciphers can not be part of the same WLAN group.
When WEP 128/TKIP and CCMP ciphers are grouped in the same WLAN group, the BC/MC
encryption is downgraded to WEP 128/TKIP. So in scenarios where 'N only' Clients are present
they may not able to associate as those Clients do not support WEP 128/TKIP. In such cases
WLANs with WEP 128/TKIP cipher suites should be in a different WLAN group than those
WLANs with CCMP cipher suites.
When downgrading the firmware on the AP, WLANs with same SSIDs are not supported by the
old version of the firmware image and hence there could be errors while configuring the AP
after booting up with image. Only the first WLAN with the common SSID may get created.
When exporting the configuration to an AP, which does not support this feature there could be
errors while configuring the AP. Only the first WLAN with the common SSID may get created.
Brocade Mobility RFS4000, RFS6000, and RFS7000 System Reference Guide
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