Comment 8 for bug 182840

On quantal:

root@tpl-quantal-amd64-temp-UzLGMWj:~# tc qdisc add dev eth0 root tbf rate 4Mbit burst 4Mb lat 2ms
root@tpl-quantal-amd64-temp-UzLGMWj:~# tc qdisc show
qdisc tbf 8001: dev eth0 root refcnt 2 rate 4000Kbit burst 4Mb lat 2.0ms
root@tpl-quantal-amd64-temp-UzLGMWj:~# tc qdisc del dev eth0 root
root@tpl-quantal-amd64-temp-UzLGMWj:~# tc qdisc add dev eth0 root pfifo_fast bands 3 priomap 1 2 2 2 1 2
qdisc 'pfifo_fast' does not support option parsing
root@tpl-quantal-amd64-temp-UzLGMWj:~# ip link
1174: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
    link/ether 00:16:3e:2b:20:87 brd ff:ff:ff:ff:ff:ff
1176: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN mode DEFAULT
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
root@tpl-quantal-amd64-temp-UzLGMWj:~# tc qdisc show
qdisc pfifo_fast 0: dev eth0 root refcnt 2 bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1