[aprssig] IGate duplicate packet filtering (please don't)
hessu at hes.iki.fi
Mon Jul 18 04:47:01 EDT 2016
On Sat, 16 Jul 2016, SARTrack Admin via aprssig wrote:
> I have not looked at my SARTrack code in this area for years, but SARTrack
> will simply send all incoming data from RF to the APRS-IS network, after
> checking for duplicate packets.
It should not be necessary to remove duplicate packets at the igate, since
the APRS-IS servers will in any case do it for you.
It might be better that the APRS-IS servers do it instead, so that there
will be a smaller amount of slightly different implementations of the
duplicate filtering algorithm.
The APRS-IS servers also then have the option of learning information
about the duplicates you hear via different paths, and do something smart
about them in the future, maybe.
- Hessu, AF5QT
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