Usage: traffic_control.py [options]
        -a -n ifname -i ipaddress -r rate
        -d -i ipaddress
        -s -i ipaddress

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -a, --add             add or replace filter
  -d, --delete          delete filter
  -n IFNAME             network interface card
  -s, --show            list exist filter
  -i IPADDRESS          ipaddress
  -R                    reload config
  -r RATE, --rate=RATE  limit rate in mbit
  -v, --verbose         show debugging information while running