I'd like to avoid any misuderstandings and thereby I'm going to say I'm not complain about my Internet connection. My Internet is fast and stable. However i'm puzzled about my ADSL connection's characteristics. I know much interferences are normal for ADSL. I know SNR margin fluctuate slightly on every ADSL connection.
I've noticed perhaps strange interferences for upload. Once a day (rarely more than once a day) it happens that at the same time SNR margin for upload drops (for example from 7.2 dB to 6.5 dB) and at one or slight more seconds there are about 100 HEC errors and about 7 super frame errors. Subsequently SNR margin is continously lowered but there aren't new errored seconds with so much HEC errors. For download there aren't so much HEC errors at such short time. Today at the moment of that intereference I've noticed very short 5.4 dB SNR margin. I think at that moment bit swap is taking place.
I'm curious what is cause of this short interference. Is it effect of someone's router power on? Is it REIN? This interference is usually about 12.00 PM.
