Configure 802.11ax MCS rates 7.0.2

You can configure 802.11ax specified VAP data rates from the FortiGate wireless controller to cover 802.11ax data rates and modulation schemes that 802.11ac does not support. This feature is currently supported on 802.11ax-capable FAP-U models.

config wireless-controller vap
    edit rate-test
        set rates-11ax-ss12 <option_1>, ... <option_n>
        set rates-11ax-ss34 <option_1>, ... <option_n>
    next
end

rates-11ax-ss12	Set allowed data rates for 802.11ax with one or two spatial streams. The following options are available: mcs0/1, mcs1/1, mcs2/1, mcs3/1, mcs4/1, mcs5/1, mcs6/1, mcs7/1, mcs8/1, mcs9/1, mcs10/1, mcs11/1, mcs0/2, mcs1/2, mcs2/2, mcs3/2, mcs4/2, mcs5/2, mcs6/2, mcs7/2, mcs8/2, mcs9/2, mcs10/2, and mcs11/2.
rates-11ax-ss34	Set allowed data rates for 802.11ax with three or four spatial streams. The following options are available: mcs0/3, mcs1/3, mcs2/3, mcs3/3, mcs4/3, mcs5/3, mcs6/3, mcs7/3, mcs8/3, mcs9/3, mcs10/3, mcs11/3, mcs0/4, mcs1/4, mcs2/4, mcs3/4, mcs4/4, mcs5/4, mcs6/4, mcs7/4, mcs8/4, mcs9/4, mcs10/4, and mcs11/4.

In the following example, a FAP-U431F is configured with 802.11ax data rates.

To configure the data rates:

1. Configure the VAP:

   config wireless-controller vap
       edit rate-test
           set rates-11ax-ss12 mcs1/1 mcs3/1 mcs5/1 mcs6/2 mcs8/2 mcs10/2
           set rates-11ax-ss34 mcs1/3 mcs5/3 mcs7/3 mcs2/4 mcs8/4 mcs10/4
       next
   end

2. Verify the configuration in FortiAP:

   # vcfg
   -------------------------------VAP Configuration    1------------------
   ...
   Rates Configuration:
           11a_rate_set=No_data_rate_is_configured
           11n_rate_set=No_data_rate_is_configured
           11ac_rate_set=No_data_rate_is_configured
   
           11ax_rate_set=mcs1/1,mcs3/1,mcs5/1,
                         mcs6/2,mcs8/2,mcs10/2,
                         mcs1/3,mcs5/3,mcs7/3,
                         mcs2/4,mcs8/4,mcs10/4,
   ...