I am a happy user of Shibby's Tomato Firmware 1.28.0000 -131 K26ARM USB AIO-64K on my R7000.
I would like to limit the bandwidth of two of my devices due to bandwidth cap issues.
I enabled the Bandwidth Limiter. I set the Max Available Download and Upload to 999999 kbps. I added the two IP addresses with appropriate DL and UL limits.
The problem is that when I click Save, my router traffic for ALL devices is severely affected. e.g. on a non-listed device, the streaming video drops from about 10 Mbps to 1-2 Mbps. It goes back to 10 Mbps as soon as I disable Bandwidth Limiter.
This occurs regardless of the settings in Default Class for unlisted MAC / IP's in LAN (br0).
I checked the CPU usage of the router via "top" and found no issues. This is a R7000, so it is fairly powerful.