Re: hostapd AX Client Association Issue w/ 6GHz 320MHz AP

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On 8/16/24 12:59 AM, Aditya Kumar Singh wrote:
> On 8/16/24 10:02, Alex Gavin wrote:
>> The following is a selection from the configuration file when configuring the AP
>> for 320MHz operation:
>>
>>      ieee80211be=1
>>      channel=37
>>      op_class=137
>>      he_oper_centr_freq_seg0_idx=31
> 
> This seem wrong? HE does not support 320 bandwidth and hence the idx 
> should be w.r.t to 160 which should be 47.
> 

Thank you for the quick reply and for pointing this out. I missed this in the
config file documentation. Changing the 'he_oper_centr_freq_seg0_idx' value
as you suggested addressed the issue.

>> With the following hacked changes, I am able to associate AX clients again:
>>
>> diff --git a/src/ap/ieee802_11_he.c b/src/ap/ieee802_11_he.c
>> index a2deda6c4..8b00abad1 100644
>> --- a/src/ap/ieee802_11_he.c
>> +++ b/src/ap/ieee802_11_he.c
>> @@ -252,7 +252,7 @@ u8 * hostapd_eid_he_operation(struct hostapd_data *hapd, u8 *eid)
>>                   *      bits 3-5: Regulatory Info
>>                   */
>>                  /* Channel Width */
>> -               if (seg1)
>> +               if (seg1 || oper_chwidth == CONF_OPER_CHWIDTH_320MHZ)
>>                          control = 3;
>>                  else
>>                          control = center_idx_to_bw_6ghz(seg0);
> 
> So here it will go to center_idx_to_bw_6ghz with value 47 which should 
> return 3 which is what is expected.
> 

Understood.

-- 
Alex Gavin
Candela Technologies, USA (PST/GMT-8)
Please CC support@xxxxxxxxxxxxxxx on support topics.


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