Hi All,
I had an issue last month where my line would go down if the phone receiver was picked up (
http://forum.kitz.co.uk/index.php?topic=14090.0), it turned out that the connection in the PCP cabinet was very loose and when the engineer moved it slightly it came out (apparently it's a very old style one which have to be screwed in at an angle), when he reconnected it the issue resolved itself.
Before I had the issue mentioned above I was getting 32/8 (fast path so to speak with no interleaving) but due to the loose connection and the connection being lost when the phone was used my line got butchered by the DLM and I went down to 28/6 (with high interleaving applied to DS of 1215 and the upsteam was banded to 6), now a week ago the upstream banding was moved upto 7.2 and now a couple of days ago it moved it again upto 8.5 (although I can only get around 8 ) so that has gone back to normal.
The interleaving on the downstream hasn't moved or reduced itself at all in this time frame and considering the US has sorted itself out I was hoping that it would of at least reduced itself or even removed it by now (like I said I didn't even have interleaving for months before this issue).
Now as I said before I didn't have interleaving on before so didn't have FEC errors but the current figure after 3 days 4 hours is 1177586 (CRC errors only 22 and HEC 36 with 8 ES) so it appears to be doing a good job, I was just wondering is that figure high?, and could it be the reason why interleaving hasn't reduced itself?. Looking at DSLstats attached pic I get spikes every now and again and unclipping that pic those 2 spikes at 10000 actually went to around 237500 (although HG612 modem stats is reporting half that although I've noticed that changing it to per sample instead of per min it tallys with HG612 modem stats), looking at the previous days on HG612 stats the spikes don't tend to go above 8000 (usually 6000max) but rarely it will be a lot higher (since the issue fixed on 26/7 the following are the higher spikes per minute) 12000 on the 28/6, 18000 on the 1/7, 11000 on 8/7 , 23000 on 10/7 and around 120000 today, all other times it's around 6000max spikes with most of the time it being 0-1000.
So I know that no-one knows the exact figures of what sort of errors are needed for DLM to kick in but does either the total FEC errors of 1177586 seem high in 3 days 4hrs or would that seem OK and the crazy high spikes every now and again be the reason why the interleaving has not been turned off like it was the 3 or so months before or could it be something else?.
Any help appreciated.
Thanks for looking.
Mike