> adsl info --stats
adsl: ADSL driver and PHY status
Retrain Reason: 1
Max: Upstream rate = 1312 Kbps, Downstream rate = 10624 Kbps
Channel: INTR, Upstream rate = 1024 Kbps, Downstream rate = 10144 Kbps
Link Power State: L0
TPS-TC: ATM Mode
Line Status: No Defect
Training Status: Showtime
SNR (dB): 6.4 10.0
Attn(dB): 34.0 17.0
Pwr(dBm): 19.8 12.3
K: 318(0) 33
R: 12 12
S: 1 4
D: 64 4
It appears from the stats that the connection is interleaved G.dmt.bis rather than interleaved ADSL2 (which I thought were the same, i.e. G.992.3?) The symptoms of the instability using interleaved ADSL2 and interleaved ADSL2+ were high error rates and a reduction in the upstream SNRM from 9dB going to below 6dB which would not recover until a resync. Quiet line tests were OK though.
The connection is TTB partial LLU (SMPF) and now together with using the Billion's G.dmt modulation setting there don't appear to be any issues. Any ideas why G.dmt.bis with almost identical sync rates and interleaving depth to ADSL2 should be better? Possibly not specifically a router fault since with other routers both ADSL2 and ADSL2+ modulations have been unstable...
Edit: with the Billion's G.dmt setting CRC, ES and bit errors, on the upstream, are no longer occurring when there is an incoming phone call.
Edited by 4M2 (Tue 16-Jan-18 19:50:03)