I seem to be on a banded profile that is steadily reducing my sync speed because of occasional losses of sync. I raised a ticket to ask for the banding to be removed but have been pointed towards the fault reporting route but I don't think there really is a fault (at least not directly on the line) apart from the reaction of DLM to the losses of sync.
I strongly suspect it is due to interference from one (or more) of the electric fence units in the field my line passes over on its way to the green cabinet. between losses of sync my line is generally pretty stable (see info below - total time should probably be 4 days not 1, I believe it is a router bug that never show more than 1 day), very low ES figures. The problem is the LOS figures - 6 shown below - as these will have been in one, or possibly 2, bursts as the ADSL signal gets wiped out for a few minutes (even an SNR margin of 25-30dB doesn't stop the router losing sync - if I manage to catch it happening there are usually at least 3 or 4 attempts to resync, presumably til the interference dies away) which is what I believe is driving down the banded profiles. I was syncing at 3070 for quite a while (not ideal but not too bad) but it has recently sunk to the current 1050 (via a short spell at around 2268 on the way).
As the reduced sync/raised margin (SNR currently running at 29-30 at night, up to 30-31 in the day) doesn't stop the loss of sync I would prefer to have the banding removed - permanently if possible. Can this be done?
Thanks for your help.
> adsl info --stats adsl: ADSL driver and PHY status Status: Showtime Channel: FAST, Upstream rate = 440 Kbps, Downstream rate = 115 0 Kbps Link Power State: L0 Mode: ADSL2+ Channel: Fast Trellis: ON Line Status: No Defect Training Status: Showtime Down Up SNR (dB): 29.6 26.9 Attn(dB): 41.0 22.1 Pwr(dBm): 19.4 12.3 Max(Kbps): 7540 888 Rate (Kbps): 1150 440 G.dmt framing K: 16(0) 56 R: 16 8 S: 4 1 D: 16 8 ADSL2 framing MSGc: 69 12 B: 15 55 M: 4 1 T: 2 1 R: 16 8 S: 1.7250 4.0000 L: 371 128 D: 16 8 Counters SF: 9943254 9943252 SFErr: 0 0 RS: 372872060 676141136 RSCorr: 0 0 RSUnCorr: 0 0 HEC: 0 0 OCD: 0 0 LCD: 0 0 Total Cells: 436190175 694493 Data Cells: 13864645 8345 Drop Cells: 0 Bit Errors: 0 0 ES: 8 0 SES: 6 0 UAS: 475 0 Total time = 1 days 4 hours 6 min 45 sec SF = 22195918 CRC = 1 LOS = 6 LOF = 0 ES = 8 Latest 1 day time = 4 hours 6 min 45 sec SF = 915504 CRC = 0 LOS = 0 LOF = 0 ES = 0 Latest 15 minutes time = 6 min 45 sec SF = 25099 CRC = 0 LOS = 0 LOF = 0 ES = 0 Previous 15 minutes time = 15 min 0 sec SF = 55639 CRC = 0 LOS = 0 LOF = 0 ES = 0 Previous 1 day time = 24 hours 0 sec SF = 5342367 CRC = 0 LOS = 0 LOF = 0 ES = 0 15 minutes interval [-30 min to -15 min] time = 15 min 0 sec SF = 55638 CRC = 0 LOS = 0 LOF = 0 ES = 0 15 minutes interval [-45 min to -30 min] time = 15 min 0 sec SF = 55639 CRC = 0 LOS = 0 LOF = 0 ES = 0 15 minutes interval [-60 min to -45 min] time = 15 min 0 sec SF = 55700 CRC = 0 LOS = 0 LOF = 0 ES = 0
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