HTB setup with bells & whistles

128kbit upstream.
  +---------------------+
  | +-----------------+ |
  | | [ SSH, prio 1,] | |
  | | [ SFQ, 128kb  ] | |
  | |                 | |
  | | [ WEB, 128kbit] | |
 -|-+ [ burst 20k,  ] +-|-
  | | [ prio 2,PFIFO] | |
  | |                 | |
  | | [ SMTP, prio3 ] | |
  | | [ SFQ, 128kbit] | |
  | +-----------------+ |
  +---------------------+
Combines PRIO, TBF and CBQ!