Brocade Mobility 7131N-FGR Access Point Product Reference Guide (Supporting software release 4.0.0.0-35GRN and later) - Manual (Page 25)

Brocade Mobility 7131N-FGR Product Reference Guide 13
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Feature overview
1
Support for CAM and PSP MUs
The access point supports both CAM and PSP powered MUs. CAM (Continuously Aware Mode) MUs
leave their radios on continuously to hear every beacon and message transmitted. These systems
operate without any adjustments by the access point.
A beacon is a uniframe system packet broadcast by the AP to keep the network synchronized. A
beacon includes the ESSID, MAC address, Broadcast destination addresses, a time stamp, a DTIM
(Delivery Traffic Indication Message) and the TIM (Traffic Indication Map).
PSP (Power Save Polling) MUs power off their radios for short periods. When a MU in PSP mode
associates with an access point, it notifies the access point of its activity status. The access point
responds by buffering packets received for the MU. PSP mode is used to extend an MU’s battery
life by enabling the MU to “sleep” during periods of inactivity.
Statistical displays
The access point can display robust transmit and receive statistics for the WAN and LAN ports.
WLAN stats can be displayed collectively and individually for enabled WLANs. Transmit and receive
statistics are available for the access point’s 802.11a/n and 802.11b/g/n radios. An advanced
radio statistics page is also available to display retry histograms for specific data packet retry
information.
Associated MU stats can be displayed collectively and individually for specific MUs. An echo (ping)
test is also available to ping specific MUs to assess association strength. Finally, the access point
can detect and display the properties of other APs detected within its radio coverage area. The type
of AP detected can be displayed as well as the properties of individual APs.
For detailed information on available access point statistical displays and the values they
represent, see
“Monitoring Statistics” on page 215.
Transmit power control
The access point has a configurable power level for each radio. This enables the network
administrator to define the antenna’s transmission power level in respect to the access point’s
placement or network requirements as defined in the site survey.
For detailed information on setting the radio transmit power level, see “Configuring the 802.11a/n
or 802.11b/g/n radio” on page 142.
Advanced event logging capability
The access point periodically logs system events. Logging events is useful in assessing the
throughput and performance of the access point or troubleshooting problems on the access point
managed Local Area Network (LAN).
For detailed information on access point events, see “Logging configuration” on page 90.