Re: Linktype allocation for ATSC link layer protocol

[Guy Harris <gharris () sonic net>]

On Oct 14, 2019, at 9:55 AM, Nick Kelsey <nickk () silicondust com> wrote:

> ATSC 3.0 includes a new link layer protocol known as ALP (ATSC Link-layer protocol).
>
> A linktype allocation would enable packet capture and diagnostics of the ATSC 3.0 link layer.
>
> Proposed linktype allocation:
>
> LINKTYPE_ name = LINKTYPE_ATSC_ALP
> LINKTYPE_ value = 289
> Corresponding DLT_ name = DLT_ATSC_ALP
> Description: ATSC link-layer protocol, as defined by ATSC A/330:2019
>
> General link to ATSC 3.0 standards: https://www.atsc.org/standards/atsc-3-0-standards/
> Direct link to ATSC A/330:2019 standard: 
> https://www.atsc.org/wp-content/uploads/2016/10/A330-2019a-Link-Layer-Protocol.pdf

So the first two octets of the packet data contain the Base Header?

That appears to be a 16-bit header; in a capture, in what order are the bytes of the Base Header, and in what order are 
the bit fields?  The same applies to other fields.
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