While streaming football last night from AT&T fiber (AS7018), I noticed the video quality went way down when I did a large download on another system. I have gigabit fiber but I'm using Linux tc to throttle my network traffic. I've configured cake with a 200mbit limit, and I also use a low BQL setting to further ensure low latency for low-bandwidth traffic.
IOW, my Linux router will drop packets across the board rather liberally in the face of large downloads, but I've always seen streams fight back for their share of the bandwidth -- except for amazon's. The live stream appears to use UDP on a non-standard port (not 443). Does anyone know what amazon has done to cause their congestion control algorithms to yield so much bandwidth and not fight for their fair share? Thanks, Dan
