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show ap spectrum interference-power

show ap spectrum interference-power {ap-name <ap-name>}|{ip-addr <ip-addr>} [freq-band {2.4 ghz | 5ghz}]

Description

This command shows the interference power detected by a 802.11a802.11a provides specifications for wireless systems. Networks using 802.11a operate at radio frequencies in the 5 GHz band. The specification uses a modulation scheme known as orthogonal frequency-division multiplexing (OFDM) that is especially well suited to use in office settings. The maximum data transfer rate is 54 Mbps. or 802.11g802.11g offers transmission over relatively short distances at up to 54 Mbps, compared with the 11 Mbps theoretical maximum of 802.11b standard. 802.11g employs Orthogonal Frequency Division Multiplexing (OFDM), the modulation scheme used in 802.11a, to obtain higher data speed. Computers or terminals set up for 802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g devices can be compatible within a single network. radio on a spectrum monitor or hybrid AP.

Syntax

Parameter

Description

ap-name <ap-name>

Name of the spectrum monitor or hybrid AP for which you want to view spectrum information.

ip-addr <ip-addr>

IP address of the spectrum monitor or hybrid AP for which you want to view spectrum information.

ip6-addr <ip6-addr>

IPv6 address of the spectrum monitor or hybrid AP for which you want to view spectrum information.

freq-band {2.4ghz | 5ghz}

View information for a specific radio type, either 2.4 GHzGigahertz. or 5 GHzGigahertz..

Usage Guidelines

This table displays information about AP power levels, channel noise, and adjacent channel interference seen on each channel by a spectrum monitor or hybrid AP radio.

The output of this command displays the noise floor of each selected channel in dBmDecibel-Milliwatts. dBm is a logarithmic measurement (integer) that is typically used in place of mW to represent receive-power level. AMP normalizes all signals to dBm, so that it is easy to evaluate performance between various vendors.. The noise floor of a channel depends on the noise figure of the RFRadio Frequency. RF refers to the electromagnetic wave frequencies within a range of 3 kHz to 300 GHz, including the frequencies used for communications or Radar signals. components used in the radio, temperature, presence of certain types of interferers or noise, and the width of the channel. For example, in a clean environment, the noise floor of a 20 MHzMegahertz channel will be around -95 dBmDecibel-Milliwatts. dBm is a logarithmic measurement (integer) that is typically used in place of mW to represent receive-power level. AMP normalizes all signals to dBm, so that it is easy to evaluate performance between various vendors. and that of a 40 MHzMegahertz channel will be around -92 dBmDecibel-Milliwatts. dBm is a logarithmic measurement (integer) that is typically used in place of mW to represent receive-power level. AMP normalizes all signals to dBm, so that it is easy to evaluate performance between various vendors.. Certain types of fixed frequency continuous transmitters such as video bridges, fixed frequency phones, and wireless cameras typically elevate the noise floor as seen by the Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. radio. Other interferers such as the frequency hopping phones, Bluetooth, and Xbox devices may not affect the noise floor of the radio. A Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. radio can only reliably decode Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. signals that are a certain dBDecibel. Unit of measure for sound or noise and is the difference or ratio between two signal levels. above the noise floor and therefore estimating and understanding the actual noise floor of the radio is critical to understanding the reliability of the RFRadio Frequency. RF refers to the electromagnetic wave frequencies within a range of 3 kHz to 300 GHz, including the frequencies used for communications or Radar signals. environment.

The ACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum. column displayed in the Interference Power Chart displays adjacent-channel interference (ACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum.) power levels based on the signal strength(s) of the Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. APs on adjacent channels. A higher ACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum. value in Interference Power Chart does not necessarily mean higher interference since the AP that is contributing to the maximum ACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum. may or may not be very actively transmitting data to other clients at all times. The ACIAdjacent Channel Interference. ACI refers to interference or interruptions detected on a broadcasting channel, caused by too much power on an adjacent channel in the spectrum. power levels are derived from the signal strength of the beacons.

Examples

The output of this example shows interference power levels for each channel seen by the spectrum monitor ap123.

(host) [mynode] #show ap spectrum interference-power ap-name ap123 freq-band 5ghz

 

Interference Power Table

------------------------

Channel Noise Floor(dBm) Max AP Signal(dBm) Max AP SSID Max AP BSSID ACI(dBm) Max Interference(dBm)

------- ---------------- ------------------ ----------- ------------ -------- ---------------------

149 -91 -40 ethersphere-wpa2 00:24:6c:80:7b:c9 -77 -71

153 -63 -42 guest 00:1a:1e:87:c1:90 -63 -58

157 -92 -48 alpha 00:1a:1e:50:01:30 -74 -60

161 -94 -39 00:24:6C:C0:15:EB 00:24:6c:81:57:c8 -61 -70

165 -93 -26 sw-jfb-attack 00:1a:1e:9b:1d:c8 -74 -69

149+ -60 -40 ethersphere-wpa2 00:24:6c:80:7b:c9 -0 -58

157+ -89 -39 00:24:6C:C0:15:EB 00:24:6c:81:57:c8 -0 -60

The output of this command includes the following information:

Column

Description

Channel

An 802.11a802.11a provides specifications for wireless systems. Networks using 802.11a operate at radio frequencies in the 5 GHz band. The specification uses a modulation scheme known as orthogonal frequency-division multiplexing (OFDM) that is especially well suited to use in office settings. The maximum data transfer rate is 54 Mbps. or 802.11g802.11g offers transmission over relatively short distances at up to 54 Mbps, compared with the 11 Mbps theoretical maximum of 802.11b standard. 802.11g employs Orthogonal Frequency Division Multiplexing (OFDM), the modulation scheme used in 802.11a, to obtain higher data speed. Computers or terminals set up for 802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g devices can be compatible within a single network. radio channel.

Noise Floor (dBm)

Current noise floor recorded on the channel.

Max AP Signal (dBm)

Power level of the AP on the channel with the highest signal power.

Max AP SSID

SSIDService Set Identifier. SSID is a name given to a WLAN and is used by the client to access a WLAN network. of the AP on the channel with the highest signal power.

Max AP BSSID

BSSIDBasic Service Set Identifier. The BSSID identifies a particular BSS within an area. In infrastructure BSS networks, the BSSID is the MAC address of the AP. In independent BSS or ad hoc networks, the BSSID is generated randomly. of the AP on the channel with the highest signal power.

ACI (dBm)

Adjacent channel interference level detected by the spectrum device.

Max Interference Power (dBm)

Signal strength of the non-Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. device that has the highest signal strength.

Related Commands

Command

Description

ap spectrum local-override

Converts an AP or AMAir Monitor. AM is a mode of operation supported on wireless APs. When an AP operates in the Air Monitor mode, it enhances the wireless networks by collecting statistics, monitoring traffic, detecting intrusions, enforcing security policies, balancing wireless traffic load, self-healing coverage gaps, and more. However, clients cannot connect to APs operating in the AM mode. into a spectrum monitor by adding it to the spectrum local-override list.

rf dot11a-radio-profilemodespectrum-mode

Sets an 802.11a802.11a provides specifications for wireless systems. Networks using 802.11a operate at radio frequencies in the 5 GHz band. The specification uses a modulation scheme known as orthogonal frequency-division multiplexing (OFDM) that is especially well suited to use in office settings. The maximum data transfer rate is 54 Mbps. radio so that the device operates as a spectrum monitor, and can send spectrum analysis data to a desktop or laptop client.

rf dot11g-radio-profilemodespectrum-mode

Sets an 802.11g802.11g offers transmission over relatively short distances at up to 54 Mbps, compared with the 11 Mbps theoretical maximum of 802.11b standard. 802.11g employs Orthogonal Frequency Division Multiplexing (OFDM), the modulation scheme used in 802.11a, to obtain higher data speed. Computers or terminals set up for 802.11g can fall back to speed of 11 Mbps, so that 802.11b and 802.11g devices can be compatible within a single network. radio so that the device operates as a spectrum monitor, and can send spectrum analysis data to a desktop or laptop client.

Command History

Release

Modification

ArubaOS 8.0.0.0

Command introduced.

Command Information

Platforms

License

Command Mode

All platforms

Base operating system.

Enable or Config mode on the managed device or controller where the AP terminates.

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