•Customize Valid Channels — You can customize Valid 5 GHz channels and Valid 2.4 GHz channels for 20 MHz and 40 MHz channels in the AP. The administrators can configure the ARRM channels in the channel width window. The valid channels automatically show in the static channel assignment data pane.

•Minimum Transmit Power — This indicates the minimum EIRP from 3 to 33 dBm in 3 dBm increments. You may also specify a special value of 127 dBm for regulatory maximum to disable power adjustments for environments such as outdoor mesh links. A higher power level setting may be constrained by the local regulatory requirements and AP capabilities. If the minimum transmission EIRP setting configured on an AP is not supported by the AP model, this value is reduced to the highest supported power setting. The default value is for minimum transmit power is 18 dBm.

•Maximum Transmit Power — This indicates the maximum Effective Isotropic Radiated Power (EIRP) from 3 to 33 dBm in 3 dBm increments. Higher power level settings may be constrained by local regulatory requirements and AP capabilities. If the maximum transmission EIRP configured on an AP is not supported by the AP model, the value is reduced to the highest supported power setting. The default value for maximum transmit power is 127 dBm.

•HP MotionAware — When Enabled, ARRM does not change channels for the APs with active clients, except for high priority events such as radar or excessive noise. This feature must be enabled in most deployments for a stable WLAN. If the HP MotionAware mode is Disabled, the AP may change to a more optimal channel, which change may disrupt current client traffic for a while. The HP MotionAware option is Enabled by default.

When the HP MotionAware ARRM is disabled, channels can be changed even when the clients are active on a BSSID.

•Scanning — When ARRM is enabled, the AP dynamically scans all 802.11 channels within its 802.11 regulatory domain at regular intervals and reports to the AP. This scanning report includes WLAN coverage, interference, and intrusion detection data.

•Wide Channel Bands — This feature allows administrators to configure 40 MHz channels in the 2.4 GHz and 5.0 GHz bands. 40 MHz channels are essentially two 20 MHz adjacent channels that are bonded together. 40 MHz channel effectively doubles the frequency bandwidth available for data transmission.

Monitoring the network with ARRM

When ARRM is enabled, an AP dynamically scans all 802.11 channels within its 802.11 regulatory domain at regular intervals and sends reports on network (WLAN) coverage, interference, and intrusion detection to a VC.

ARRM metrics

ARRM computes coverage and interference metrics for each valid channel, chooses the best performing channel, and transmit power settings for each AP RF environment. Each AP gathers other metrics on its ARRM-assigned channel to provide a snapshot of the current RF health state.

Configuring ARRM on an AP

To configure ARRM features such as band steering, spectrum load balancing, and airtime fairness mode:

1.Select Wireless Configuration > RF > ARRM. The ARRM details are displayed.2.Configure the following parameters for BAND STEERING MODE:

Table 12: Band steering mode configuration parameters

Data pane item

Description

 

 

Prefer 5 GHz

Select this option to use band steering in the 5 GHz mode. On selecting this, the AP

 

 

39 Wireless configuration

HP Cloud Network Manager User Guide