[Bloat] Applying RED93 in south africa

[Juliusz Chroboczek]

> SFB is also in this release, but lacking good scripts for it...

SFB is supposed to be self-tuning, so it should be enough to say
something like:

  #!/bin/sh
  set -e

  if=${1:-eth0}

  tc -s qdisc del root dev $if 2>/dev/null || true
  tc -s qdisc add dev $if root handle 1: tbf ...
  tc -s qdisc add dev $if parent 1: handle 2: sfb

However, I may have made the SFB defaults a little bit too conservative
(leading to high stability but slow convergence), so you may want to
make it a little bit more aggressive by replacing the last line with:

  tc -s qdisc add dev $if parent 1: handle 2: sfb target 20 max 25 increment 0.005 decrement 0.0001

-- Juliusz