to remove and add a new queue discipline:
tc qdisc del dev eth1 root
tc qdisc add dev eth1 root pfifo
or if a queue discipline is already in place you can replace it directly:
tc qdisc replace dev eth1 root pfifo
to remove and add a new queue discipline:
tc qdisc del dev eth1 root
tc qdisc add dev eth1 root pfifo
or if a queue discipline is already in place you can replace it directly:
tc qdisc replace dev eth1 root pfifo