Underzone, once it hopefully settles at 3dB, chances are you'll still be on ReTx High and it'll stick there, in which case capping it again will probably disable that and switch it back to ReTx Low.
Yes,that's usually the case but can take quite a long time for DLM action, on my line after a long period of DS G.Inp re-tx high state it initially took 14 days before DLM applied DS re-tx low profile.
From experience have found that quite a severe DS speed clamp producing a DS FEC error rate of approx 10,000 or less errors/hr (avg daily rate) as monitored by DSLStats was required, the time scale for DLM intervention appeared to be proportional to the length of time DS re-tx high state previously existed and the historic DS FEC error rate.
I'am well aware that no one knows exactly what parameters DLM monitors with respect to G.Inp re-tx profile selection, however, have found that DS FEC error rate is a reasonable guide to any DLM potential action on re-tx profile adjustment.
Have also found that once DS G.Inp re-tx low profile has been achieved, DLM is much more tolerant of DS FEC error rate, my line periodically reaches 20,000 errors/hr (avg daily rate) and has still maintained DS re-tx low profile.
