CoDel - light reading

[Harvy66]

https://tools.ietf.org/pdf/draft-ietf-aqm-codel-01.pdf

I was just reading through this and some minor things caught my attention

1. The interval of 100ms is used because that's the estimated RTT for many connections. When CoDel is running on an end device, the RTT for a given queue can actually be known instead of just a fixed guess. Their example was to use the max TCP RTT within a queue. Since PFSense is stateful, I wonder if TCP RTT information can be acquired and used to dynamically change the interval. The Target is just 5% of the interval, so both can be dynamic

2. Google changed CoDel to ignore small control packets. Not a good idea if you're running a network where you are concerned about the network being abused, but it could possibly be useful for non-ISP users to have that option.