nl−qdisc−{add|list|delete} - Manage queueing disciplines
nl−qdisc−add −−dev dev −−parent id [OPTIONS] qdisc-type [QDISC]
nl−qdisc−delete [ −−interactive ] [OPTIONS]
nl−qdisc−list [OPTIONS]
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.
nl−qdisc−add
Options
−−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.
nl−qdisc−delete
Options
−−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.
nl−qdisc−list
Options
−−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.