[pskmail] Re: Understanding LINK
- From: Rein Couperus <rein@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Sat, 24 Oct 2009 15:41:03 +0200
Linking does not need a connect.
You can send a link request to a server with ctrl-L.
When connect, you are linked to that server until you link somewhere else.
If a client is not linked it tries to do so automatically.
When the client chooses another server it tries to link automatically.
A link packet looks like <SOH>00uPA0R><S54FAA-0 4A62<EOT>,
a link ack looks like <US><SOH>00uS54FAA-0<>PA0R CF4D<EOT>.
Every server has a link table, you can look at it locally in .pskmail/routes,
or by connecting to any server and issuing a ~ROUTES command.
There you can see what client is linked to which server.
73,
Rein PA0R
> -----Ursprüngliche Nachricht-----
> Von: "Andy obrien" <k3ukandy@xxxxxxxxx>
> Gesendet: 24.10.09 13:55:32
> An: pskmail@xxxxxxxxxxxxx
> Betreff: [pskmail] Understanding LINK
> "APRS messages sent to your call will be transmitted by the server you
> are linked to. The linking concept makes sure there is only one server
> transmitting. As all servers know where you are (which qrg, which
> server), the link concept allows a very effective level 3 routing
> scheme which does not use HF channels for network topology changes.
> The messages can be generated anywhere on the APRS net."
>
> Today, I tried a connect to the WB5CON server (WB5COn should get an
> award for having a superb station) . The 30M band was in poor shape
> and I heard no reply. About 20 or 30 seconds later I heard a weak
> PSK250 signal and at the second attempt that signal linked with my
> client. Was that WB5CON responding to my earlier CONNECT request?
> Also, if linking for the reasons described above (APRS messages) ,
> should you stay linked for a long period ?
>
> Andy K3UK
>
>
--
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