[OZAPRS] Aprs Server Question
Hamish Moffatt
hamish at cloud.net.au
Sat Nov 20 17:09:27 EST 2004
On Sat, Nov 20, 2004 at 10:49:02AM +1000, Geoff - VK2XJG wrote:
> G'day Norm, The weekend couldn't come around fast enough this week :-)
>
> The extra frame is a keepalive. Its part of the server's protection
against
> hung ports, where a client connects but sends no data. What used to
happen
> was clients connected and then crashed, leaving the port hung on the
server.
> If the keepalive goes un-acknowledged, then port is torn down.
>
> 20 seconds is the default, however we can experiment with increasing the
> time, I'll try 5 minutes and see if that causes any issues :-)
That's a pretty expensive keep-alive! A simple line feed (or better yet
a NULL) would suffice.
Hamish
--
Hamish Moffatt VK3SB <hamish at debian.org> <hamish at cloud.net.au>
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