A Simple tc command wrapper tool. Easy to set up traffic control of network bandwidth/latency/packet loss/packet-corruption to a network interface.

Apply traffic shaping rules to specific targets:

• Outgoing/Incoming packets
• Source/Destination IP-address/network (IPv4/IPv6)
• Source/Destination ports

Moreover, exclude from shaping rules from specific targets:

• Source/Destination IP-address/network (IPv4/IPv6)
• Source/Destination ports

The following parameters can set to network interfaces:

• Network bandwidth rate [G/M/K bps]
• Network latency [microseconds/milliseconds/seconds/minutes]
• Packet loss rate [%]
• Packet corruption rate [%]
• Packet duplicate rate [%]
• Packet reordering rate [%]

tcset is a command to add traffic control rule to a network interface (device).

# tcset --device eth0 --rate 100k

You can use time units (such as us/sec/min/etc.) to designate delay time.

# tcset --device eth0 --delay 100ms

# tcset --device eth0 --delay 10sec

# tcset --device eth0 --delay 0.5min

# tcset --device eth0 --loss 0.1

# tcset --device eth0 --rate 100k --delay 100 --loss 0.1

# tcset --device eth0 --delay 100 --network 192.168.0.10

# tcset --device eth0 --delay 100 --network 192.168.0.0/24 --port 80

tcdel is a command to delete traffic shaping rules from a network interface (device).

You can delete all of the shaping rules for the eth0 with -a/--all option:

# tcdel --device eth0 --all

tcshow is a command to display the current traffic control settings for network interface(s).

# tcset --device eth0 --delay 10 --delay-distro 2  --loss 0.01 --rate 0.25M --network 192.168.0.10 --port 8080
# tcset --device eth0 --delay 1 --loss 0.02 --rate 500K --direction incoming
# tcshow --device eth0
{
    "eth0": {
        "outgoing": {
            "dst-network=192.168.0.10/32, dst-port=8080": {
                "delay": "10.0",
                "loss": "0.01",
                "rate": "250K",
                "delay-distro": "2.0"
            },
            "dst-network=0.0.0.0/0": {}
        },
        "incoming": {
            "dst-network=0.0.0.0/0": {
                "delay": "1.0",
                "loss": "0.02",
                "rate": "500K"
            }
        }
    }
}

More examples are available at http://tcconfig.rtfd.io/en/latest/pages/usage/index.html

tcconfig can be installed from PyPI via pip (Python package manager) command.

sudo pip install tcconfig

1. wget https://github.com/thombashi/tcconfig/releases/download/<version>/tcconfig_<version>_amd64.deb
2. dpkg -iv tcconfig_<version>_amd64.deb

Example

$ wget https://github.com/thombashi/tcconfig/releases/download/v0.17.1/tcconfig_0.17.1_amd64.deb
$ sudo dpkg -i tcconfig_0.17.1_amd64.deb

The following package includes tcconfig and dependency packages. This package is for environments which cannot access to PyPI directly.

How to install:

1. Navigate to https://github.com/thombashi/tcconfig/releases/
2. Download the latest version of tcconfig_wheel.tar.gz
3. Copy tcconfig_wheel.tar.gz to installation target
4. tar xvf tcconfig_wheel.tar.gz
5. cd tcconfig_wheel/
6. ./install.sh

Python 2.7+ or 3.4+

• mandatory: required for tc command:

  • ubuntu/`debian`: iproute2
  • fedora/`RHEL`: iproute-tc

• optional: required to when you use --iptables option:

  • iptables

• sch_netem

Dependency python packages are automatically installed during tcconfig installation via pip.

• DataPropery
• ipaddress
• logbook
• pyparsing
• six
• subprocrunner
• typepy
• voluptuous

• netifaces

  • Suppress excessive error messages if this package installed

• allpairspy
• pingparsing
• pytest
• pytest-runner
• tox

http://tcconfig.rtfd.io/

http://tcconfig.readthedocs.io/en/latest/pages/troubleshooting.html