Re: [STDS-802-11-TGBE] Agenda request for single-link TDLS

[M Montemurro <montemurro.michael@xxxxxxxxx>]

Hi Yongho,

No problem. The document I've queued for presentation is 11-21/1436r0, not r1. The r0 version allows a single link TDLS connection between peer non-AP MLDs associated with the same AP MLD.

Cheers,

Mike

On Wed, Mar 2, 2022 at 3:41 PM Yongho Seok <yongho.seok@xxxxxxxxx> wrote:

Hi Mike, 

In 1436r1, 

When a STA affiliated with a non-AP MLD determines that the peer STA is affiliated with a non-AP MLD, it shall not initiate a TDLS setup by transmitting a TDLS Setup Request frame to that peer STA or respond to a TDLS Setup Request frame received from that peer STA

The proposed texts are saying that a non-AP MLD shall not initiate a TDLS setup with a peer non-AP MLD. I don't understand your response, why do you say that the current proposal is to allow the TDLS setup between non-AP MLDs? The text is saying the reverse.

Thanks, 

Yongho 

2022년 3월 2일 (수) 오후 12:25, M Montemurro <montemurro.michael@xxxxxxxxx>님이 작성:

Hi Yongho,

Thanks. In response to your comments:

1) The current proposal is to allow TDLS setup between non-AP MLDs. 

2) If you want to define a "MLD TDLS Prohibit" field I have no issues with that. But I think that work can be done in the next round of balloting.

Cheers,

Mike

On Wed, Mar 2, 2022 at 3:18 PM Yongho Seok <yongho.seok@xxxxxxxxx> wrote:

Hi Mike, 

I have two comments: 

1) In 11ax, only STA operating in the 6 GHz band has the following requirements: 

The following apply to a STA operating in the 6 GHz band:

— The STA shall not use the following pre-RSNA security methods: WEP, Open System authentication
without encryption, Shared Key authentication

So, in 2.4GHz and 5GHz, when the TDLS STA does not have an RSNA with the BSS, you should not disable the TDLS setup between a non-AP MLDs. 

2) The AP can control TDLS setup by using the TDLS Prohibited subfield.

TDLS shall not be used when the TDLS Prohibited subfield included in the Extended Capabilities element of
the Association Response frame or Reassociation Response frame that led to the current association is equal
to 1.

The concern that you raised may not have happened on some AP vendor's implementation. At least, I didn't hear any issue. 

So, instead of disallowing all TDLS setup within the non-AP MLDs, I prefer to define another the MLD TDLS Prohibit subfield, to indicate whether the TDLS setup between the non-AP MLDs is prohibited or not.  

Thanks, 

Yongho 

2022년 3월 2일 (수) 오전 7:58, M Montemurro <montemurro.michael@xxxxxxxxx>님이 작성:

Hi Alfred, 

Based on the feedback received on Monday's call, I'd like to request agenda time to present 11-21/1436r0, which addresses the comments received during the presentation (and yes, it seems backwards). :-)

Cheers,

Mike

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