rx-sensitivity-reduction

Allows you to set the selected radio's receive sensitivity reduction threshold level. This threshold determines the RSSI (in dBm) at which the radio acknowledges the SOP (Start of Packet) frames received from clients and begins to demodulate and decode the packets.

In highly dense environments, or single-channel networks, having two or more radios sharing a channel, CCI (co-channel interference) adversely impacts network performance. By setting this threshold, you can control the radio‘s receive sensitivity to interference and noise, thereby reducing the impact of CCI. You are basically configuring the AP to not decode packets that have a signal strength below the specified threshold level.

The available rx-sensitivity-reduction threshold levels are: high, low, medium, and None. Refer to the following table for rx-sensitivity-reduction threshold level to RSSI mapping for the 2.4 GHz and 5 GHz bands:

802.11 Bands

High Threshold

Medium Threshold

Low Threshold

2.4 GHz

-79 dBm

-82 dBm

-85 dBm

5 GHz

-76 dBm

-78 dBm

-80 dBm

Supported in the following platforms:

Syntax

rx-sensitivity-reduction [high|low|medium|none]

Parameters

rx-sensitivity-reduction [high|low|medium|none]

rx-sensitivity-reduction [auto|high|low|medium]

Sets the selected radio's receive sensitivity reduction threshold level. The options are:
  • high – Sets the threshold level as high. By setting the threshold at high, you are forcing the radio to ignore all traffic having a signal strength below the high threshold value. This results in fewer traffic interruptions due to collision and Wi-Fi interference.

  • low – Sets the threshold level as low.

  • medium – Sets the threshold level as medium.

  • none – Does not set a threshold. This option is applicable for networks having minimal to no CCI.

    Note:

    The default setting is None.

Examples

ap8432-070235(config-device-74-67-F7-07-02-35-if-radio2)#rx-sensitivity-reduction high
ap8432-070235(config-device-74-67-F7-07-02-35-if-radio2)#show context
 interface radio2
  wlan test bss 1 primary
  rx-sensitivity-reduction high
ap8432-070235(config-device-74-67-F7-07-02-35-if-radio2)#

Related Commands

no (radio-interface-config-command)

Removes the rx-sensitivity-reduction threshold level configuration