I'm including stats from last 4 days cant do any more at the moment but it should be enough. At 24th Nov. 1730 there was power cut for 20 min so that's that reset
A small downward, but distinct step in DS SNRM usually signifies an increase in crosstalk.
However, your step is only visible in US SNRM - DS is still steady.
The reduction in US SNRM could have been due to the power outage & resync being at around 18:00 (usually quite a 'noisy' time).
However, it hasn't recovered, which is slightly unusual.
Your error counts are generally quite low though (at the moment).
I was one of, if not the first to be connected to my FTTC cabinet back in June 2011.
An intermittent line fault developed after 1 month, which took 11 months to pinpoint to a corroded joint from the underground
cable to the pole mounted DP.
Once that was repaired, due to a distance of around 1100m from the cabinet, my connection was able to maintain around 30 Mbps sync speed for the next 7 months until I started seeing small stepped & sustained reductions in DS SNRM (from 6 dB to around 4 dB), always followed a few days later by a resync at a lower speed, with SNRM back to the target 6dB.
These DS SNRM reductions & resyncs have been confirmed as increased crosstalk as more users joined my cabinet.
Current DS sync speeds are around 21.6Mbps (fastpath), but they have been as low as around 19Mbps (interleaved) at times.
As more users join your cabinet, I would expect you will see similar reductions in DS SNRM, but you do have quite a bit of spare margin to play with before it starts to affect your max available 80/20 sync speeds.
FWIW, it might be worthwhile if you allowed the logging/graphing programs to update via the
HG612 Stats logging GUI (the
Receive beta updates option).
A little more detail is included in the snapshot & ongoing graph montages, such as average error counts per minute, hour, day etc.