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PyNetem is a tool that allow the user to limit the bandwidth or simulate weak network.

Project description

pynetem

PyNetem is a tool that allow the user to limit the bandwidth or simulate weak network. It does so by using iproute's tc command, but greatly simplifies its operation. And provide apis if you need in your work.

Installation

pip install pynetem

How to Use It?

In command mode, type pynetem -h, you will see help information, parameters in this tool is same as 'tc/netem'.

You can also use original command of tc/netem. For more information about tc/netem, you can click here: netem

It is recommended to use web mode, when you have several hosts to control, or you want to build a web page for easier usage.

Run in web mode: pynetem --web, default port is 8899, you can specify by yourself pynetem --web --port=9090

There are five APIs:

[GET] /pynetem/help                                     -- Get demo post data and simple description
[GET] /pynetem/listInterfaces                           -- Get interfaces name of host
[GET] /pynetem/getRules?eht=<interface name>            -- Get qdisc rules by interface
[GET/DELETE] /pynetem/clear?eth=<interface name>        -- Clear all rules
[POST] /pynetem/setRules?eth=<interface name>           -- Set tc qdisc rule

Post Body, if you set parameter None or '', the parameter will be ignored.:

{
    "delay": "100ms 10ms 25%",
    "distribution": "normal",
    "reorder": "25% 50%",
    "loss": "0.3% 25%",
    "duplicate": "1%",
    "corrupt": "0.1%",
    "rate": "256kbit",
    "buffer": 1600,
    "limit": 3000,
    "dst": "10.10.10.0/24"
}

ATTENTION!

When you press ctrl + c to stop the web server, ALL qdisc rules in all interfaces will be cleared automatically.

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