Configuring Additional RF Management Settings

General 2.4 GHz/5 GHz Settings

Enable or disable transmissions on this radio band Band refers to a specified range of frequencies of electromagnetic radiation..

Set the AP operating mode from the drop-down list. The available options are:

• am-mode: Air Monitor mode
• ap-mode: Access Point mode
• spectrum-mode: Spectrum Monitor mode

The default setting is ap-mode.

Enable or disable high-throughput (802.11n 802.11n is a wireless networking standard to improve network throughput over the two previous standards, 802.11a and 802.11g. With 802.11n, there will be a significant increase in the maximum raw data rate from 54 Mbps to 600 Mbps with the use of four spatial streams at a channel width of 40 MHz.) features on the radio. This option is enabled by default.

Enable or disable high-efficiency (802.11ax) features on the radio. This option is enabled by default.

Enable or disable VHT Very High Throughput. IEEE 802.11ac is an emerging VHT WLAN standard that could achieve physical data rates of close to 7 Gbps for the 5 GHz band. rate on 2.4 GHz Gigahertz. band Band refers to a specified range of frequencies of electromagnetic radiation. providing 256-QAM modulation and encoding that allows for 600 Mbit/sec performance over 802.11n 802.11n is a wireless networking standard to improve network throughput over the two previous standards, 802.11a and 802.11g. With 802.11n, there will be a significant increase in the maximum raw data rate from 54 Mbps to 600 Mbps with the use of four spatial streams at a channel width of 40 MHz. networks.

NOTE: This parameter is only available in the 2.4 Ghz radio profile.

Enable or disable very high-throughput (802.11ac 802.11ac is a wireless networking standard in the 802.11 family that provides high-throughput WLANs on the 5 GHz band.) features on the radio. This option is enabled by default.

NOTE: This parameter is only available in the 802.11a 802.11a 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 profile.

Set a value for non-Wi-Fi Wi-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. Interference Immunity.

The default setting for this parameter is level 2. When performance drops due to interference from non-802.11 802.11 is an evolving family of specifications for wireless LANs developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE). 802.11 standards use the Ethernet protocol and Carrier Sense Multiple Access with collision avoidance (CSMA/CA) for path sharing. interferes (such as DECT or Bluetooth devices), the level can be increased up to level 5 for improved performance. However, increasing the level makes the AP slightly "deaf" to its surroundings, causing the AP to lose a small amount of range.

The levels for this parameter are:

• Level 0: no ANI adaptation.
• Level 1: noise immunity only.
• Level 2: noise and spur immunity.
• Level 3: level 2 and weak OFDM Orthogonal Frequency Division Multiplexing. OFDM is a scheme for encoding digital data on multiple carrier frequencies. immunity.
• Level 4: level 3 and FIR immunity.
• Level 5: disable PHY reporting.

Transmit channel for this radio. The available channels depend on the regulatory domain (country). This parameter includes the following channel number configuration options for 20 MHz Megahertz, 40 MHz Megahertz and 80 MHz Megahertz modes:

• 20: Select this option to disable 40 MHz Megahertz mode and 80 Mhz mode and activate 20 MHz Megahertz mode for the entered channel.
• 40: Entering a channel number and selecting the 40 radio button in the WebUI selects a primary and secondary channel for 40 MHz Megahertz mode. When you use this option, the number entered becomes the primary channel and the secondary channel is determined by increasing the primary channel number by 4. For example, if you entered 157 into the Channel field and selected the above option, radios using that profile would select 157 as the primary channel and 161 as the secondary channel.
• 80; Entering a channel number and selecting the 80 Mhz radio button selects a primary and secondary channel for 80 MHz Megahertz mode.

If you select the spectrum monitoring checkbox on this profile page, the AP will operate as a hybrid AP and scan the selected channel for spectrum analysis data.

Select this option to convert APs using this radio profile to a hybrid APs that continue to serve clients as an AP, but also scan and analyze spectrum analysis data for a single radio channel. For more details on hybrid APs, see Spectrum Analysis.

Select the maximum channel bandwidth for APs that are associated with managed devices. The available options are:

20 MHz Megahertz

40 MHz Megahertz

80 MHz Megahertz

160 MHz Megahertz

NOTE: This parameter is only available in Mobility Conductor mode.

Select the minimum channel bandwidth for APs that are associated with managed devices. The available options are:

20 MHz Megahertz

40 MHz Megahertz

80 MHz Megahertz

160 MHz Megahertz

NOTE: This parameter is only available in Mobility Conductor mode.

Enter the minimum transmission power level (in dBm Decibel-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.) to be assigned to the AP radio(s).

NOTE: This parameter is only available in Mobility Conductor mode.

Enter the maximum transmission power level from 3 to 33 dBm Decibel-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. in 3 dBm Decibel-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. increments. You may also specify a special value of 127 dBm Decibel-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. for regulatory maximum to disable power adjustments for environments such as outdoor mesh links.

NOTE: This parameter is only available in Mobility Conductor mode.

Enter a value from -6 to 6 dBm Decibel-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. to manually adjust EIRP Effective Isotropic Radiated Power or Equivalent Isotropic Radiated Power. EIRP refers to the output power generated when a signal is concentrated into a smaller area by the Antenna. levels selected by the AirMatch algorithm.

NOTE: This parameter is only available in Mobility Conductor mode.

Enter a number from 0-23 to select the hour during which AirMatch updates are sent to the APs (in 24-hour format). If the managed device to which the AP is associated is in a different time zone than Mobility Conductor, the AirMatch solution will be deployed according to the time zone of the managed device.

If this parameter is set in both the AirMatch profile and the radio profile, the setting in the radio profile will take precedence.

Enable or disable Zero Wait Dynamic Frequency Selection feature.

This option is disabled by default.

Select this check box to Increase the client association success rate, especially in a noisy environment. When this parameter is enabled:

The management frame retransmission retry limit in the radio firmware for both authentication and association response is increased, thereby increasing the management frame retransmission rate.

If the management frame retransmission retry limit is reached, another round of management frames are scheduled after a short time delay.

If a client starts an association (by sending a probe or authentication request), AP scanning is rejected for 5 seconds, thereby not missing the client association request.

This option is disabled by default.

Advanced 5 GHz/2.4 GHz Settings

Mute the radio transmission when in AM Air 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. mode.

This option is disabled by default.

Set the maximum transmit EIRP Effective Isotropic Radiated Power or Equivalent Isotropic Radiated Power. EIRP refers to the output power generated when a signal is concentrated into a smaller area by the Antenna. in dBm Decibel-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. from 0 to 51 in .5 dBm Decibel-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. increments, or 127 for regulatory maximum. Transmit power may be further limited by regulatory domain constraints and AP capabilities.

Spur Immunity for 5 GHz Gigahertz. radio. This parameter fine-tunes the Cyclic Power Threshold of a 5 GHz Gigahertz. radio. The value specified here is the offset from the base value of 2 dB Decibel. Unit of measure for sound or noise and is the difference or ratio between two signal levels. (for example, setting the Cyclic Power Threshold value to 1 corresponds to 2 + 1 = 3 dB Decibel. Unit of measure for sound or noise and is the difference or ratio between two signal levels.. Similarly, setting the Cyclic Power Threshold value to 10 corresponds to 2+10 = 12 dB Decibel. Unit of measure for sound or noise and is the difference or ratio between two signal levels.).

Use this parameter when high channel utilization is observed in the 5 GHz Gigahertz. radio of 130 Series access points in a noise-free environment causing client association or throughput issues.

Adjust the Cyclic Power Threshold value to eliminate the spur impacts. Range definition is as follows:

• 0: default Cyclic Power Threshold
• 1-19: Cyclic Power Threshold growth from default (3 dBm Decibel-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. to 21 dB Decibel. Unit of measure for sound or noise and is the difference or ratio between two signal levels.)
• 20: Setting this parameter to 20 sets the cell-size-reduction value to 1. Cell-size-reduction is the receive coverage area of the AP.

Enable CSAs as defined by IEEE Institute of Electrical and Electronics Engineers. 802.11h 802.11h is intended to resolve interference issues introduced by the use of 802.11a in some locations, particularly with military Radar systems and medical devices. Dynamic Frequency Selection (DFS) detects the presence of other devices on a channel and automatically switches the network to another channel if and when such signals are detected. Transmit Power Control (TPC) reduces the radio frequency (RF) output power of each network transmitter to a level that minimizes the risk of interference., which allows an AP to announce that it is switching to a new channel before it begins transmitting on that channel. This allows clients that support CSA Channel Switch Announcement. The CSA element enables an AP to advertise that it is switching to a new channel before it begins transmitting on that channel. This allows the clients, which support CSA, to transition to the new channel with minimal downtime. to transition to the new channel with minimal downtime.

Enter the number of channel switch announcements that must be sent prior to switching to a new channel. The default CSA Channel Switch Announcement. The CSA element enables an AP to advertise that it is switching to a new channel before it begins transmitting on that channel. This allows the clients, which support CSA, to transition to the new channel with minimal downtime. count is 4 announcements.

Enable the radio to advertise its 802.11d 802.11d is a wireless network communications specification for use in countries where systems using other standards in the 802.11 family are not allowed to operate. Configuration can be fine-tuned at the Media Access Control (MAC) layer level to comply with the rules of the country or district in which the network is to be used. Rules are subject to variation and include allowed frequencies, allowed power levels, and allowed signal bandwidth. 802.11d facilitates global roaming. (Country Information) and 802.11h 802.11h is intended to resolve interference issues introduced by the use of 802.11a in some locations, particularly with military Radar systems and medical devices. Dynamic Frequency Selection (DFS) detects the presence of other devices on a channel and automatically switches the network to another channel if and when such signals are detected. Transmit Power Control (TPC) reduces the radio frequency (RF) output power of each network transmitter to a level that minimizes the risk of interference. (Transmit Power Control) capabilities. This option is disabled by default.

Enable or disable the Spectrum Load Balancing feature. This feature helps optimize network resources by balancing clients across channels, regardless of whether the AP or the controller is responding to the wireless clients' probe requests.

If enabled, the controller compares whether or not an AP has more clients than its neighboring APs on other channels. If an AP’s client load is at or over a predetermined threshold as compared to its immediate neighbors, or if a neighboring Aruba AP on another channel does not have any clients, load balancing will be enabled on that AP. This feature is disabled by default.

Enter the beacon period for the AP in msec. The range is 60-2000 msec, and the default value is 100 msec.

Enable this setting to introduce randomness in the beacon generation so that multiple APs on the same channel do not send beacons at the same time.

This option disables ARM Adaptive Radio Management. ARM dynamically monitors and adjusts the network to ensure that all users are allowed ready access. It enables full utilization of the available spectrum to support maximum number of users by intelligently choosing the best RF channel and transmit power for APs in their current RF environment. and Wireless IDS Intrusion Detection System. IDS monitors a network or systems for malicious activity or policy violations and reports its findings to the management system deployed in the network. functions and slightly increases packet processing performance. If a radio is configured to operate in Air Monitor mode, then the ARM Adaptive Radio Management. ARM dynamically monitors and adjusts the network to ensure that all users are allowed ready access. It enables full utilization of the available spectrum to support maximum number of users by intelligently choosing the best RF channel and transmit power for APs in their current RF environment. /WIDS Wireless Intrusion Detection System. WIDS is an application that detects the attacks on a wireless network or wireless system. functions are always enabled, regardless of whether or not this check box is selected. The available options are:

Off

On

Dynamic

In some dense deployments, it is possible for APs to hear other APs on the same channel. This creates co-channel interference where the traffic of an active client could affect the air traffic of neighboring APs within the same channel. Starting from AOS-8.11.0.0, users are allowed to control frame bursting if one or more clients are associated to the AP. Select one of the following values from the drop-down list:

On: Frame bursting mode is always enabled.

Off: Frame bursting mode is always disabled.

Dynamic: Frame bursting will be enabled only when one active client is connected to the AP, and frame bursting will be disabled when there is more than one active client.

The cell size reduction feature allows you to manage dense deployments and to increase overall system performance and capacity by shrinking an AP’s receive coverage area, thereby minimizing co-channel interference and optimizing channel reuse. This value should only be changed if the network is experiencing performance issues. The sensitivity range values can be configured from 1 to 20. The default 0 reduction allows the radio to retain its current default Rx sensitivity value.

If you configure this feature to use a non-default value, you must also reduce the radio’s transmission (Tx) power to match its new received (Rx) sensitivity level. Failure to match a device’s Tx power level to its Rx sensitivity level can result in a configuration that allows the radio to send messages to a device that it cannot hear.

NOTE:

• It is recommended that Aruba support engineering is contacted in order to adjust the cell-size-reduction configuration. Manipulating this configuration without guidance from Aruba support may have serious adverse effects on network performance.
• This feature is implemented for 5 GHz Gigahertz. radio only. The configuration will be ignored by 2.4 GHz Gigahertz. and 6 GHz Gigahertz. radios.
• This feature is supported by AP-534, AP-535, AP-555, AP-634, AP-635, and AP-655 platforms running AOS-8.10.0.7 or later versions.

Modify the Energy Detect Threshold (EDT) used by the radio in making transmit decisions.

The EDT is a negative value, and the value specified is the offset from the base value of -59 dBm Decibel-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. (for example, 1: -59 -1 = -60 dBm Decibel-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.; 10: -59 -10 = -69 dBm Decibel-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.; -29 : -59 - (-29) = -30 dBm Decibel-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 default value is 0.

Enter the average interval for rate limiting management frames from this radio, in seconds. A management frame throttle interval of 0 seconds disables rate limiting.

Enter the maximum number of management frames that can come in from this radio in each throttle interval.

Enter the maximum wireless-link distance (in meters). This parameter is used to derive slot-time and ACK and CTS Clear to Send. The CTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See RTS. timeouts.

The default value is 0.

Enter the RX sensitivity tuning based channel reuse threshold, in - dBm Decibel-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..

If the Rx Sensitivity Tuning Based Channel reuse feature is set to static mode, this parameter manually sets the AP’s Rx sensitivity threshold
(in -dBm Decibel-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 AP will filter out and ignore weak signals that are below the channel threshold signal strength.

If the value for this parameter is set to zero, the feature will automatically determine an appropriate threshold.

In some dense deployments, it is possible for APs to hear other APs on the same channel. This creates co-channel interference and reduces the overall utilization of the channel in a given area. Channel reuse enables dynamic control over the receive (Rx) sensitivity in order to improve spatial reuse of the channel.

This feature is disabled by default. To enable this feature, click the RX Sensitivity Tuning Based Channel Reuse drop-down list and select either static or dynamic. To disable this feature, click the RX Sensitivity Tuning Based Channel Reuse drop-down list and select disable.

Do not enable the Channel Reuse feature if Interference Immunity is set to level 3 or higher. A level-3 to level-4 Noise Immunity setting is not compatible with the Channel Reuse feature. The channel reuse feature applies to non-DFS Dynamic Frequency Selection. DFS is a mandate for radio systems operating in the 5 GHz band to be equipped with means to identify and avoid interference with Radar systems. channels only. It is internally disabled for DFS Dynamic Frequency Selection. DFS is a mandate for radio systems operating in the 5 GHz band to be equipped with means to identify and avoid interference with Radar systems. channels and is does not affect DFS Dynamic Frequency Selection. DFS is a mandate for radio systems operating in the 5 GHz band to be equipped with means to identify and avoid interference with Radar systems. radar signature detection.

AOS-8 allows users to control RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. frame transmission to the clients. Users can select a RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. mode based on the network requirement. Select one of the following values from the drop-down list:

always-enable: RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. is used for every PPDU/ A-MPDU Aggregate MAC Protocol Data Unit. A-MPDU is a method of frame aggregation, where several MPDUs are combined into a single frame for transmission. transmission. Applicable only to AP-5xx and newer models.

always-disable: RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. is not used for any transmission. Applicable only to AP-5xx and newer models.

default: The default RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. mode configured in the wireless driver of the AP is used. For 300 Series, 310 Series, 360 Series, 370 Series,530 Series, AP-555, 580 Series, 630 Series, and 650 Series access points, the RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. is used for retried PPDU transmissions. For 500 Series, 510 Series, 560 Series, 570 Series, 600 Series, and 610 Series access points, RTS Request to Send. RTS refers to the data transmission and protection mechanism used by the 802.11 wireless networking protocol to prevent frame collision occurrences. See CTS. is used for all AMPDU transmissions.

The minimum time between the start of adjacent sub-frames within an aggregate MPDU MAC Protocol Data Unit. MPDU is a message exchanged between MAC entities in a communication system based on the layered OSI model.. Due to hardware differences, on some platforms this value will be silently restricted to 8us even if a lower value is configured. Select one of the following values from the drop-down list:

0, .25, . 5, 1, 2, 4, 8, or 16

The default value is 0.

(For 802.11g RF Management Profiles only) Enable or disable protection for 802.11b 802.11b is a WLAN standard often called Wi-Fi and is backward compatible with 802.11. Instead of the Phase-Shift Keying (PSK) modulation method used in 802.11 standards, 802.11b uses Complementary Code Keying (CCK) that allows higher data speeds and makes it less susceptible to multipath-propagation interference. 802.11b operates in the 2.4 GHz band and the maximum data transfer rate is 11 Mbps. clients. This parameter is enabled by default. Disabling this feature may improve performance if there are no 802.11b 802.11b is a WLAN standard often called Wi-Fi and is backward compatible with 802.11. Instead of the Phase-Shift Keying (PSK) modulation method used in 802.11 standards, 802.11b uses Complementary Code Keying (CCK) that allows higher data speeds and makes it less susceptible to multipath-propagation interference. 802.11b operates in the 2.4 GHz band and the maximum data transfer rate is 11 Mbps. clients on the WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection..

WARNING: Disabling protection violates the 802.11 802.11 is an evolving family of specifications for wireless LANs developed by a working group of the Institute of Electrical and Electronics Engineers (IEEE). 802.11 standards use the Ethernet protocol and Carrier Sense Multiple Access with collision avoidance (CSMA/CA) for path sharing. standard and may cause interoperability issues. If this feature is disabled on a WLAN Wireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. with 802.11b 802.11b is a WLAN standard often called Wi-Fi and is backward compatible with 802.11. Instead of the Phase-Shift Keying (PSK) modulation method used in 802.11 standards, 802.11b uses Complementary Code Keying (CCK) that allows higher data speeds and makes it less susceptible to multipath-propagation interference. 802.11b operates in the 2.4 GHz band and the maximum data transfer rate is 11 Mbps. clients, the 802.11b 802.11b is a WLAN standard often called Wi-Fi and is backward compatible with 802.11. Instead of the Phase-Shift Keying (PSK) modulation method used in 802.11 standards, 802.11b uses Complementary Code Keying (CCK) that allows higher data speeds and makes it less susceptible to multipath-propagation interference. 802.11b operates in the 2.4 GHz band and the maximum data transfer rate is 11 Mbps. clients will not detect an 802.11g 802.11g 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. client talking and can potentially transmit at the same time, thus garbling both frames.

If enabled, AirMatch turns off radios in high density deployment.

Default: Disabled