Hi BC - sorry for not yet performing the tests, worked called me away so am just back last night. I *will* do them soon (btw -agreed the graph I posted does not show SNRM go to 0. Thats in earlier graphs. Sometimes it would dip a little, other times all the way to 0. But yes in that graph I was wrong to state it hit 0.
Nothing much to report before today other than a drop in throughput down to 0.5mbps down the other day for no reason. Fixed itself a few hours later, but thankfully managed to catch the problem via the BTW speed test and line diagnostics.Was told by plusnet its been escalated and they would get back to me.
Then, an interesting thing happened this morning. Came back from dropping off the kids on the school run to find, unannounced, a BTOR van parked on my drive. the guy said he was booked two days ago so had no idea why PN hadn't notified me. Think he was SFI, not sure. Said he'd been doing it 17 years and he arrived in one of the huge vans with all kinds of gubbins in the back.
His line tester didn't show anything was wrong other than the sync being much lower than it should be. I showed him my graphs and stats, which he was very interested in and said 'Yep, looks like a HR fault at least, probably some REIN or crosstalk too'. He did his line tests with this thing plugged into my electric socket, which he said showed nothing in the house was doing anything noisy (guess that rules our REIN on my side at least. Glad I wasn't going mad).
He also looked at the topography of the local wiring, which explained why my attenuation is that of a 5-600m line instead of the 250 it is to the cabinet. Unfortunately for me,if I lived in the house across the street, id be just shy of 250 wire length. In my place its more like 550. Ive attached a little map - black is my house, green is the cab, blue is the DP down the manhole. At least im not as unlucky as my neighbour diagonally opposite who appears to have another 200m run at least, even though he is ironically closer to the cab than me. Sorry for the pic quality, etc.
The DP down the manhole was drenched, but it looked like only small amount of water had ingressed into the casing - the silica was only a little soggy
He also replaced my D side pair from the cab up to the DP, and then reset DLM on the cab. He said if this doesn't resolve it, a new pair may need to come from the DP to the property. And if that doesn't resolve it, then its a problem inside the cab with the actual terminating equipment.
Current sync is 78.5mbps and I have the graphing on the go. Upstream SNRM still dips when off hook, but seems to only be by 1db currently. will keep an eye on that one. DS SNRM doesnt change off hook.
Current errors so far are;
Per second Per minute Per hour Per day
CRC Up 0 0.28 16.7 402
Down 0.01 0.76 45.8 1100
FEC Up 0.09 5.24 314 7542
Down 0 0 0 0
HEC Up 0 0 0 0
Down 0.01 0.81 48.8 1170
ES Up 0 0.14 8.22 197
Down 0.01 0.44 26.1 627
What do you guys think of these stats? More ES and HEC on the DS, but is it enough for DLM to be concerned?