[aprssig] AX.25 RR bit test - Holy Grail?

Heikki Hannikainen hessu at hes.iki.fi
Fri Nov 30 13:10:30 CST 2012


On Fri, 30 Nov 2012, Jason KG4WSV wrote:

> IMO, it's a mistake to shove layer 3+ data into layer 2 (data link) fields, both for specific reasons
> like Andrew points out, and just on general principle.

Second that. It would be *wrong* to do that, and it would not work with 
existing software some of which would either ignore the bits (loosing 
information), or ignore the packets having those set (even worse).

Also, there is no construct in the APRS-IS packet format to embed the 
values of those bits in the APRS-IS stream.

It's better to put APRS extensions in the APRS protocol, instead of 
reusing bits in the AX.25 protocol.

   - Hessu





More information about the aprssig mailing list