Configuring The Beacon Table - Brocade Communications Systems RFS6000 System Reference Manual

Configuring the Beacon Table

The Beacon Table is used to detect rogue APs. An Brocade Mobility 300 Access Point transmits
beacons and Clients send a probe request to the AP for association. The Brocade Mobility 300
Access Point (on receipt of the probe request) sends a probe response and forms an AP-client
association.
When enabling an Enhanced Beacon, the switch allows adopted Access Ports to periodically scan
for rogue APs on different channels without disassociating Clients. The beacons collected in the
scan are passed on to the switch so required information is gathered to locate a particular rogue
AP. Refer to
information for AP radios to detect a rouge.
The switch is provided with a set of 802.11a and 802.11bg radio specific channels. The switch
radio scans scan each channel to detect the potential existence or rogues operating on the
configured channel. On completion of a scan, the switch moves the AP back to its original channel.
If, during the scan, an AP is detected on a different channel (due to a leaked signal), this channel is
also added to the channel set. The AP sends this information to the switch, which maintains a table
with the following information:
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•
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This information is used by the Brocade RF Management application (or Brocade RFMS) to locate
the rogue AP. Brocade RFMS uses this information to physically locate the position of rogues and
authorized devices within a site map representative of the physical dimensions of the actual device
deployment area.
To configure enhanced beacons:
1. Select Security > Enhanced Probe/Beacon Table from the main menu tree.
Brocade Mobility RFS4000, RFS6000, and RFS7000 System Reference Guide
53-1002515-01
Editing AP Settings on page 4-177
MAC address of the detected rogue AP
AP MAC address
Signal strength of the detected rogue AP
Channel on which the AP was detected
Time when the AP was detected.
to enable an AP to forward beacons and association
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