[Dxspider-support] PC41 loop?

[Dirk Koopman G1TLH]

On 16/06/10 14:20, Rene Olsen wrote:
> Hi Dirk.
>
> I thought that some historical background might be a good idea :-)
>
> You might be correct that in current age we no longer need the hop table. I see quite a few
> spots arriving here with very low hop counts though (1-3).
>
> Of the options you mention for PC41 handling I would vote for 2 or 3.
>
> As you say there is a big time gap between them, and I must say that I was amazed to see
> how big a percentage of the total trafic was PC41.
>
> Would it not be possible to "reset" the dupe timer each time a dupe is received?
>
> That means setting the dupe time to 12 hours or whatever, and each time a dupe is received,
> reset the counter to 12 hours again. I am not a programmer, so there might be some very
> bad side effect to this. And maybe making a new PC9x frame would be just as easy to code
> :-)

This is exactly how it works now. Unfortunately, the loop time is set 
(as default) to one hour (3600 secs) and this would (does :-) not make 
any difference if it takes longer than that to go round the loop.

12 hours is probably good enough. So I will reset the default to that. 
Especially it already re-triggers as you outline above.

What, I think, we should try to do though is to find the "slow loop" 
path that these PC41s (and potentially other legacy PCxx sentences) are 
going through. Because, if that path was cut, I suspect other loopy data 
would also reduce.

Dirk G1TLH