The nl-qdisc tools allow to manage and configure queueing disciplines (qdiscs) in the kernel.
-\^h " or " --help Print help text to console and exit.
-\^v " or " --version Print versioning information to console and exit.
-\^q " or " --quiet Do not print informal notifications about actions taken to the console. By default a short description of each qdisc added/update/deleted will be printed to the console. This option disables this behaviour.
-\^d " or " --dev "=DEV" Network device the qdisc is attached to.
-\^p " or " --parent "=ID" Identifier of the parent qdisc/class this qdisc is attached to. The identifier can be specified as classid, name or one of the special values "root" or "ingress".
-\^i " or " --id "=ID" Identifier of qdisc. It can be specified as classid or name.
--update Update qdisc if it already exists, otherwise attempting to add a qdisc which already exists will result in an error. This does not include changing the type of the qdisc, use --replace if you wish to do so.
--replace Replace or update qdisc if it already exists. Same behaviour as --update but will completely replace the qdisc if it exists already.
--update-only Update an existing qdisc but do not create it if it does not exist.
--replace-only Update or replace an existing qdisc but do not create it if it does exist.
--interactive The interactive mode requires confirmation by the user for each qdisc deleted. It will print a prompt for each qdisc matching the provided filter and requires the user to answer 'y'es or 'n'o.
--yes Make the default answer for interactive prompts be 'y'es. This option is also required to delete all qdiscs on all network devices.
-\^k " or " --kind "=TYPE" Only delete qdiscs of this type.
--details Show detailed information for each qdisc listed.
--stats Show statistics information for each qdisc listed. This option will also turn on detailed information automatically.
-\^r " or " --recursive List all TC objects recurisvely attached to all qdiscs matching the filter.
-\^k " or " --kind "=TYPE" Only list qdiscs of this type.
Add a HTB root qdisc with id "5:":
nl-qdisc-add --dev eth0 --parent root --id 5: htb
List all qdiscs on eth0 and print statistical data:
nl-qdisc-list --stats --dev eth0
Delete the qdisc "5:": nl-qdisc-delete --id 5:
nl-classid-lookup(8)
Thomas Graf is the original author and current maintainer of libnl and libnl tools. Many people have contributed to it since.
