Configuring XOR Slot for Cisco 2800/3800 Series Access Points

Information About XOR Radio

The Cisco Aironet 3800/2800 series access points are one of the 802.11ac Wave 2 supported APs.

In Cisco Aironet 2800/3800 series APs, slot 0 is an XOR radio that can be set up as a 2.4-GHz or 5-GHz or monitor radio. If it is a 2.4- or 5-GHz radio, it should support wireless clients to transmit and receive packets or voice or videos. It is the first time that an XOR radio supports transmission and reception, and behaves as a normal 2.4- or 5-GHz radio.

The Cisco Aironet 2800/3800 series APs with an XOR module supports the following modes:

  • Radio 0—Is an XOR radio.

  • Radio 1—Is a dedicated 5-GHz radio.

The Dual-Band (XOR) radio offers the ability to serve either the 2.4- or 5-GHz bands or passively monitor both bands on the same radio.

Configuring XOR Radio (CLI)

  • Enable an antenna on a given access point by entering this command:

    ap name Cisco AP dot11 dual-band dot11 antenna {A | B | C | D} 

    
ap name Cisco1 dot11 dual-band dot11 antenna A

    Note

    To enable all antennas, enter the antenna values in the order as A -> B -> C -> D.

  • Disable an antenna on a given access point by entering this command:

    ap name Cisco AP no dot11 dual-band dot11 antenna {A | B | C | D} 

    
ap name Cisco1 no dot11 dual-band dot11 antenna A

    Note

    To disable all antennas, enter the antenna values in the order as D -> C -> B -> A.

  • Configure the 802.11 dual-band external antenna gain for a given access point:

    ap name Cisco AP dot11 dual-band antenna gain external antenna gain value 

    
ap name Cisco1 dot11 dual-band antenna gain 4

    Note

    external antenna gain value—Ranges from 0 to 40. Enter external antenna gain value in multiples of .5 dBi units (An integer value of 4 means 4 x 0.5 = 2 dBi of gain)

  • Configure frequency band for a given access point:

    ap name Cisco AP dot11 dual-band band {24ghz | 5ghz} 

    
ap name Cisco1 dot11 dual-band band 5ghz

  • Configure the channel width for a given access point:

    ap name Cisco AP dot11 dual-band channel width {20 | 40 |80 | 160} 

    
ap name Cisco1 dot11 dual-band channel width 80

  • Configure auto or custom channel number for a given access point:

    ap name Cisco AP dot11 dual-band channel {channel number | auto}

    • channel number—Ranges from 1 to 165.


      Note

      If both radios are in the same band (5-GHz), you need to ensure that channels must be 100MHz apart.

    • auto—Enable the auto channel assignment using the auto option. 

    
ap name Cisco1 dot11 dual-band channel 2

  • Enable CleanAir on a specified band for a given access point:

    ap name Cisco AP dot11 dual-band cleanair band {24Ghz | 5Ghz} 

    
ap name Cisco1 dot11 dual-band cleanair band 5Ghz

  • Disable CleanAir on a specified band for a given access point:

    ap name Cisco AP no dot11 dual-band cleanair band {24Ghz | 5Ghz} 

    
ap name Cisco1 no dot11 dual-band cleanair band 5Ghz

  • Disable the dual-band radio for a given access point:

    ap name Cisco AP dot11 dual-band shutdown 

    
ap name Cisco1 dot11 dual-band shutdown

  • Enable the dual-band radio for a given access point:

    ap name Cisco AP no dot11 dual-band shutdown 

    
ap name Cisco1 no dot11 dual-band shutdown

  • Configure the role of the dual-band radio for a given access point:

    ap name Cisco AP dot11 dual-band role {auto | manual {client-serving | monitor}}

    • auto—Switch to automatic radio role selection.

    • manual—Switch to manual radio role selection.

    • client-serving—Switch to client-serving role.

    • monitor—Switch to monitor role. 

    
ap name cisco1 dot11 dual-band role manual client-serving

  • Configure auto or custom transmit power level for a given access point:

    ap name Cisco AP dot11 dual-band txpower {txpower_level | auto} 

    
ap name cisco1 dot11 dual-band txpower 2

    Note

    txpower_level—Ranges from 1 to 8.

Monitoring XOR Radio Parameters

Table 1. Commands for monitoring XOR radio
Commands Description

show ap name Cisco AP config dot11 dual-band

Displays the detailed information on all dual-band radios on the given access point.

show ap name Cisco AP auto-rf dot11 dual-band

Displays the Auto-RF information for a given access point.

show ap name Cisco AP wlan dot11 dual-band

Displays the WLAN information for a given access point.

show ap config dot11 dual-band summary

Displays the list of access points that have dual-band radio.