A Simple Linux QoS Service
The Problem: Bufferbloat (see http://en.wikipedia.org/wiki/Bufferbloat)
- Your SSH session turns to molasses when your kid watches YouTube
- Your wife complains that "the internet is slow"
- You hate the stupid DSL modems supplied by the phone company
with their giant packet queues that add unnecessary latency
- You have your own Linux router that routes all your traffic
or is the only machine you have connected to the Internet
and know there must be a better way
See http://en.wikipedia.org/wiki/Bufferbloat for details.
The Solution: QoS
QoS = "Quality of Service"
You probably already know about it. Control and proritize traffic.
This QoS is new and improved. Previous QoS setups only throttled
traffic in the download direction. This one handles both directions
using the (poorly documented) Linux ifb interface and tc(8) 'mirred'