Re: Public Release of Z-Wave G.9959 TAP Specification

[Denis Ovsienko via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

> --- Begin Message ---
>
>
> From: Denis Ovsienko <denis () ovsienko info>
>
> Date: Thu, 8 Dec 2022 23:52:10 +0000
>
> On Tue, 6 Dec 2022 07:55:06 -0800
> Chris Brandson via tcpdump-workers <tcpdump-workers () lists tcpdump org>
> wrote:
>
> > Hello Denis,
> >
> > I agree with all of your suggestions, have made the changes and
> > pushed to the repo.
>
> Thank you Chris.
>
> I hope you don't mind one more question about the encoding.  Would it be
> correct to say that the only reliable way to access the MPDU beyond the
> Length field (for example, to start reading the MSDU) would be as
> follows?
>
> 1. Iterate through the TLV space until an RF Info TLV is found or there
>    is no more TLVs.
> 2. If the TLV was found, read Region, Data Rate and Frequency from the
>    TLV and derive Channel Configuration ("1,2" or "3"), otherwise
>    default to "1,2".
> 3. Somehow (by parsing MHR?) tell if the MPDU is singlecast or
>    multicast.
> 4. From Channel Configuration and singlecast/multicast tell which one of
>    the four possible MPDU formats to use.
>
> -- 
>     Denis Ovsienko
>
> --- End Message ---
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