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Re: [STDS-802-11-TGM] Glitch/error in 4.5.3.2?

--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---

Thanks, Mike and Graham.

 

So, Mike, I think there is a technical error then, in that the clause shows this “to different ESS” transition as being under the umbrella of “within a network”.  This led to confusion about what “a network” is defined/intended to mean, in the REVme document.  I believe the answer to that confusion is that it is actually in error to think that “a different ESS” is (necessarily) within the same network.

 

I suggest that TGme should fix this.  We can wait for a future LB comment, or accept an “rogue” comment now – and I’m fine with either approach, at your preference/discretion.

 

Mark

 

From: M Montemurro <montemurro.michael@xxxxxxxxx>
Sent: Wednesday, September 13, 2023 8:46 AM
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGM] Glitch/error in 4.5.3.2?

 

--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---

Hi Mark,

 

This text goes back to 802.11-1999 and indeed a STA may move from a BSS in an ESS to another BSS in a different ESS.

 

I'd note that in 4.5.3.2 there is additional clarification which I believe is relevant to your interpretation: "This case is supported only in the sense that the STA might move. Maintenance of upper-layer connections cannot be guaranteed by IEEE Std 802.11; in fact, disruption of service is likely to occur."

 

I agree with your interpretation and there is no guarantee that this type of transition would be within a network. It could be the same LAN through a different portal, or a different LAN altogether.

 

Cheers,

 

Mike

 

 

 

On Wed, Sep 13, 2023 at 10:30 AM G Smith <gsmith@xxxxxxxxxxxxxxxxxxx> wrote:

--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---

I agree with your observation.  That sems to be the definition of what is not “within a network”.  Otherwise “network” refers to the worldwide Wi-Fi.

I shiver when recalling the “What is an ESS?” discussions we had in ARC, but I am pretty sure we did agree on several points (same SSID?)

Graham

 

From: Mark Hamilton <mark.hamilton2152@xxxxxxxxx>
Sent: Wednesday, September 13, 2023 10:21 AM
To: STDS-802-11-TGM@xxxxxxxxxxxxxxxxx
Subject: [STDS-802-11-TGM] Glitch/error in 4.5.3.2?

 

--- This message came from the IEEE 802.11 Task Group M Technical Reflector ---

All,

 

In TGbh (on that reflector) it was just pointed out that REVme subclause 4.5.3.2 makes the following claim:

 

The three transition types of significance to this standard that describe the mobility of (M12)non-GLK STAs within a network are as follows:

…

c) ESS -transition: This type is defined as STA movement from a BSS in one ESS to a BSS in a different ESS .

 

In my personal view, movement from one ESS to a different ESS is not “within a network”, although I will also admit readily that what a “network” is is not clearly defined in 802.11, so this is perhaps debatable.

 

I would appreciate any clarity TGm (or TGm members) could bring to this, before TGbh gets all wrapped up on an incorrect path.

 

Thanks!  Mark

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