Cisco Systems DL-2159-05 manual Transmit Power, Frag. Threshold, RTS Threshold, Max. RTS Retries

Chapter 3 Radio Configuration and Basic Settings

Radio Configuration

Transmit Power

This setting determines the power level of radio transmission. The default power setting is the highest transmit power allowed in your regulatory domain.

Note Government regulations define the highest allowable power level for radio devices. This setting must conform to established standards for the country in which you use the access point.

To reduce interference or to conserve power, select a lower power setting. The settings in the drop-down menu for the internal radio include 1, 5, 20, 50, and 100 milliwatts. The settings in the drop-down menu for the radio module include 5, 8, 11, and 14 milliwatts.

Note The power settings available on your access point depend on the regulatory domain for which the access point is configured. Your power settings might be different from the settings listed here.

Frag. Threshold

This setting determines the size at which packets are fragmented (sent as several pieces instead of as one block). Enter a setting ranging from 256 to 2338 bytes. Use a low setting in areas where communication is poor or where there is a great deal of radio interference.

RTS Threshold

This setting determines the packet size at which the access point issues a request to send (RTS) before sending the packet. A low RTS Threshold setting can be useful in areas where many client devices are associating with the access point, or in areas where the clients are far apart and can detect only the access point and not each other. Enter a setting ranging from 0 to 2339 bytes.

Max. RTS Retries

The maximum number of times the access point issues an RTS before stopping the attempt to send the packet through the radio. Enter a value from 1 to 128.

Max. Data Retries

The maximum number of attempts the access point makes to send a packet before giving up and dropping the packet.

Beacon Period

The amount of time between beacons in Kilomicroseconds. One K∝sec equals 1,024 microseconds.

Data Beacon Rate (DTIM)

This setting, always a multiple of the beacon period, determines how often the beacon contains a delivery traffic indication message (DTIM). The DTIM tells power-save client devices that a packet is waiting for them.

If the beacon period is set at 100, its default setting, and the data beacon rate is set at 1, its default setting, then the access point sends a beacon containing a DTIM every 100 K∝secs. One K∝sec equals 1,024 microseconds.

Cisco Aironet 1200 Seres Access Point Software Configuration Guide

OL-2159-05 3-13