Could you set the ingress shaper to 50% of you true ingress rate and try again, please?
Also could you post the results of 'tc -d qdisc' with your current settings and with the 50% settings (I will probably ask for more data...)? And finally I believe you are on an ADSL link, what are the sync rates reported by the modem, and which ISP are you with (I ask, as some ISPs actually employ a shaper at their BRAS, so the modem sync rate might not be the actual bottleneck bandwidth). That said, with wrong shaper settings I would rather expect increased latency under load, but not bandwidth violations.

Best Regards
Sebastian

On October 27, 2016 2:16:06 AM GMT+02:00, "G. Amanakis" <g_amanakis@yahoo.com> wrote:

I mean that the ingress limit on WAN (or egress limit on LAN) seems to be ignored, and the rate bmon and bwm-ng report is the maximum achievable. I.e. on 450kbyte/s ingress with the limit set at 400kbyte/s, when bittorrent is in use bmon reports 450kbyte/s after 10-20 seconds.
Cake mailing list
Cake@lists.bufferbloat.net
https://lists.bufferbloat.net/listinfo/cake