SQM with cake qdisc in place, but not shaping

[dlakelan]

@moeller0

Also please note that 2100/800, or 2.1/0.8 Mbps is really really slow and will have unpleasent latencies from the serialization delay alone,

Indeed to understand this further @xaldyz may find the post I wrote explaining it a useful thing to read Why you need at least 3Mbps upload to get good game performance with ~1500byte packets: Doing the math