Use the range keyword to optimize the wireless device for the best range. The wireless device can be configured to automatically transmit at the data rate that optimizes either the range of the transmission or the throughput of the data. If, due to environmental factors such as obstacles or interference, the wireless device cannot transmit data at the highest basic data rate, the wireless device steps the speed down to the highest rate that allows it to transmit data. If the client device supports the basic data rate and due to environmental conditions, the wireless and client devices can transmit at a higher data rate, the devices will transmit unicast packets at the highest allowed data rate multicast packets are always sent at the highest basic data rate. For example, if the client device supports both t a 1.0 Mbps and a 6.0 Mbps transmission rate, both of the devices use the higher 6.0 Mbps transmission rate.Ĭlient devices are allowed to transmit at other data rates, depending on the configuration. The wireless device always attempts to begin data transmission at the highest basic data rate. If the speed of the wireless device is set to basic-1.0 and basic-6.0, the client must support a 1.0 Mbps or a 6.0 Mbps transmission rate or it will not be allowed to associate with the wireless device. For example, if the speed of the wireless device is set to basic-1.0, the client must support a 1.0 Mbps transmission rate or it will not be allowed to associate with the wireless device. Use the no form of the command to return the power setting to maximum, the default setting.Ĭlient devices are required to support at least one basic data rate or they are not be allowed to associate with the wireless device. Sets the maximum power level allowed on client devices that associate to the wireless device. Power client įor the 802.11g, 2.4 GHz radio where the settings are in dBm:įor 802.11a, 5 GHz radios where the settings are in mW:įor 802.11a, 5 GHz radio where the settings are in dBm: To set the transmit power on your wireless device radio, use the power client command. The client software chooses the actual transmit power level, choosing between the lower of the access point value and the locally configured value. The transmit power level of Cisco clients can be controlled by a Cisco wireless infrastructure device. Use the no form of the power command to return the power setting to maximum, the default setting. To display the options for your wireless infrastructure device running your image, use the power local ? command in privileged EXEC mode. Note The structure of this command is determined by the radio in the wireless device and the settings allowed in your regulatory domain. Orthogonal Frequency Division Multiplexing (OFDM) is supported by 802.11g and 802.11a devices. Power local Ĭomplementary Code Keying (CCK) is supported by 802.11b and 802.11g devices. Power localįor 802.11g, 2.4 GHz radios where the settings are in mW: To set the transmit power on the wireless device radio to one of the power levels allowed in your regulatory domain, use the power local interface command.įor all 802.11b 2.4 GHz radios, the settings are in mW: For example:Ĭurrent Frequency: 2412 MHz Channel 1 ! Frequency Use the show controllers dot11Radio command to show the radio type, frequency, and current channel for the wireless device. See the "Radio Channel Frequencies" document for additional information.įor general information on power values, see RF Power Values (Document ID 23231) at:įor general information on channel selection and transmit power, see the FCC Regulations Update For 2004 white paper at:ĭetermine the radio type to establish the frequency range and power setting of the radio. In some situations, the channel selection or country code affects the transmit power level. The maximum transmit power is limited according to regulatory region.Īn improper combination of transmit power level and antenna gain can result in equivalent isotropic radiated power (EIRP) that exceeds the amount allowed per regulatory domain. Radio cell size is controlled by the transmitted power level of the wireless device and controls interference between cells. Configuring Radio Data Rates Understanding Radio Transmit Power.Configuring Client Radio Transmit Power. This note contains the following sections:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |