Zebra ML-1499-LAK1-01R Fiche technique télécharger pdf (Page 28)

AP-5131 Access Point Product Reference Guide

1-12

1.1.16 Support for CAM and PSP MUs

The AP-5131 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 AP-5131. A beacon is a uniframe system packet broadcast

by the AP to keep the network synchronized. A beacon includes the ESSID, AP-5131 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 Symbol MU in PSP

mode associates with an AP-5131, it notifies the AP-5131 of its activity status. The AP-5131 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.

1.1.17 Statistical Displays

The AP-5131 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 AP-5131’s 802.11a and 802.11b/g 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 AP-5131 can

detect and display the properties of other APs detected within the AP-5131’s radio coverage area. The

type of AP detected can be displayed as well as the properties of individual APs. For information on

available AP-5131 statistical displays and the values they represent, see Monitoring Statistics on

page 7-1.

1.1.18 Transmit Power Control

The AP-5131 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 AP-5131’s placement or network

requirements as defined in the AP-5131 site survey. For detailed instructions on setting the radio

transmit power level, see Configuring the 802.11a or 802.11b/g Radio on page 5-38.

1.1.19 Advanced Event Logging Capability

The AP-5131 provides the capability for periodically logging system events. Logging events is useful

in assessing the throughput and performance of the AP-5131 or troubleshooting problems on the

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 455 456

Pas de commentaire

Zebra ML-1499-LAK1-01R Fiche technique Page 28