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[aprssig] APRS-IS Feed Dropout?

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Sun Aug 14 22:30:27 UTC 2011


Negative.  I've got a few read-only instances on the APRS-IS and they 
don't get dropped at all.  I can see a few reasons for this to happen, 
though.

1) You must read the socket, even if you're not expecting any data from 
the APRS-IS.  The servers send out heart-beat messages on all active 
connections.

2) If you're not sending a #user xxxxx pass yyyyy (at least a -1), most 
servers will eventually disconnect you.  But this is usually far more 
quickly than 30 minutes in my experience.

3) If you send the same callsign-SSID to a single server, it will 
disconnect the existing connection as soon as a new connection sends in 
a matching #user.  This is to prevent a broken program (or user) from 
hogging connections on the server from a single "station".  This is by 
far the most frequent reason for me to get disconnected when I get 
sloppy with my -SSIDs.

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

On 8/14/2011 6:07 PM, Jason Rausch wrote:
> Will a feed connected to APRS-IS be dropped off if it does not feed any packets after a specified amount of time?  Testing an iGate and it seems to get auto-disconnected after it doesn't feed anything for about 30 minutes or so.  This is usually the case when I have the radio disconnected and just testing things on the IP side.
>
> Thanks in advance!
>
> Jason Rausch - KE4NYV
> RPC Electronics, LLC
> www.rpc-electronics.com
>
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