Tc (Linux)

tc (traffic control) is the user-space utility program used to configure the Linux kernel packet scheduler.[1] Tc is usually packaged as part of the iproute2 package[2].

tc relates to the Linux kernel packet scheduler as iptables to netfilter. Both are user-space CLI programs that are used to configure their respective Linux kernel subsystem.

Syntax

tc filter add dev pppoe-dsl parent 1: prio 1 protocol ip handle 202 fw flowid 1:202

See also

• cgroups

References

1. tc(8) – Linux Administration and Privileged Commands Manual
2. "list of the Debian package iproute2". Debian.

External links

• Traffic Control HOWTO Dated but still very relevant HOWTO from the Linux Documentation Project.
• Linux Advanced Routing & Traffic Control HOWTO More up-to-date HOWTO for advanced networking topics, including traffic control
• Linux TC Notes brief note of various parts of linux traffic control. English is sometimes broken, but the information is still good.
• tc: Linux HTTP Outgoing Traffic Shaping Example use of tc for shaping tcp/80 traffic.
• Advanced Traffic Control ArchLinux wiki entry for traffic control with tc.
• tcng A proposed alternative to the regular tc program, however it appear to have stalled.