pip install tcconfig

usage: tcset [-h] [--version] [--time-measure] [--logging] [--stacktrace]
             [--debug | --quiet] --device DEVICE [--rate RATE] [--delay DELAY]
             [--loss LOSS] [--overwrite]

optional arguments:
  -h, --help       show this help message and exit
  --version        show program's version number and exit
  --debug          for debug print.
  --quiet          suppress output of execution log message.

Miscellaneous:
  --time-measure   measuring execution time.
  --logging        suppress output of execution log files.
  --stacktrace     display stack trace when an error occurred.

Traffic Control:
  --device DEVICE  network device name
  --rate RATE      network bandwidth [K|M|G bps]
  --delay DELAY    round trip network delay [ms] (default=0)
  --loss LOSS      round trip packet loss rate [%] (default=0)
  --overwrite      overwrite existing setting

# tcset --device eth0 --rate 100k

# tcset --device eth0 --delay 100

# tcset --device eth0 --loss 0.1

# tcdel --device eth0