показать / изменить настройки управления трафиком (show / manipulate traffic control settings)
CONFIGURING CLASSLESS QDISCS
In the absence of classful qdiscs, classless qdiscs can only be
attached at the root of a device. Full syntax:
tc qdisc add dev DEV root QDISC QDISC-PARAMETERS
To remove, issue
tc qdisc del dev DEV root
The pfifo_fast qdisc is the automatic default in the absence of a
configured qdisc.
