For some nitty gritty on tc see an earlier post of mine on tc rate limiting and pitfalls.
TC Queuing Disciplines (qdisc)
Creating:
E.g Add a tbf qdisc on eth0:
sudo tc qdisc add dev eth0 root tbf rate 10mbit burst 100kb latency 50ms
Listing:
E.g. Show qdiscs on all interfaces:
tc qdisc show
Delete:
E.g. Delete all qdiscs on eth0 interface:
sudo tc qdisc delete dev eth0 root
TC Filters
Creating:
Here's some good info on the u32 filter (here and here). Some more with a quick overview from LARTC mail list (the source of most useful info on tc etc). Someone put together a tc manual.
Listing:
E.g. Show filters on eth0 interface:
sudo tc filter show dev eth0 root
Here's some example output:
filter parent ffff: protocol ip pref 49152 u32
Deleting:
To delete the above example filter (bold section copied from filter show output):
sudo tc filter del dev eth0 parent ffff: protocol ip pref 49152 u32
[updated:17feb12, 5,6jul12,29jan20: more explanations+archive.org link for 1st link as it's gone MIA, link to older article of mine; Added TC qdisc cmds]
