Hi Robert,

Thank you for the answer.

What about the second question ?
"can you confirm that there is no way to omit both Source and
Destination PAN ID while using Source and Destination Short Addresses ?"
I was using the compression bit to omit both PAN-ID in previous 802.15.4
implementation.

Thank you,

Keoma

On 05/10/2017 10:36, Robert Cragie wrote:
> I recall similar concerns with PAN ID compression a couple of years ago.
> See:
> 
> https://mailarchive.ietf.org/arch/msg/6tisch/G24yEB7a48owwlL3nJZgteuSswE
> 
> This was before 802.15.4-2015 came out and the footnote to table 7-2
> actually seems wrong to me.
> 
> To answer your question: Set PAN ID compression to 1.
> 
> Robert
> 
> On 4 October 2017 at 19:41, Keoma <[email protected]
> <mailto:[email protected]>> wrote:
> 
>     Hi,
> 
>     After looking at the 802.15.4-2015 standard, I am not 100% of how to
>     implement the Frame Control Field, in particular regarding the PAN ID
>     Compression.
> 
>     - Both my Source and Destination Address fields are Short.
>     - My Source PAN ID and Destination PAN ID are identical
>     - I don't want the Source PAN ID and Destination PAN ID to appear twice
> 
>     According to the Table 7-2 I am tempted to set the PAN ID Compression to
>     1 and to omit the Source PAN ID field.
> 
>     Here is the note that confuses me (Table 7-2, p153):
>     "If both the destination and source addressing information is present
>     and either is a short address, the MAC sublayer shall compare the
>     destination and source PAN IDs and the PAN ID Compression field shall be
>     set to zero if and only if the PAN identifiers are identical."
> 
>     Should I set the PAN ID Compression to 1 or not ?
> 
>     Also, can you confirm that there is no way to omit both Source and
>     Destination PAN ID while using Source and Destination Short Addresses ?
> 
>     Thank you,
> 
>     --
>     Keoma Brun-Laguna
>     Inria - EVA Team
>     https://kbl.netlib.re
>     (+33)180494139 <tel:%28%2B33%29180494139>
>     (+33)684015496 <tel:%28%2B33%29684015496>
> 
> 
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