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tcctl

Tcctl webui reference

Features

  1. Starts automatically in background when system boots.
  2. Monitor network traffic by interface.
  3. Apply limitations on delay, corrupt, duplicate, reorder, packet loss, and data rate via netem.
  4. Upload trace file and apply limitations according to the trace.
  5. Switching between manual mode and trace file mode will reset all shaping rules.
  6. It is recommended to connect to tcctl from a port that’s not been controlled by itself.

Manual Mode

manual mode

Set network shaping parameters by integer. Click “Submit” to apply the values, if submit multiple times, subsequent submissions will override previous ones. Click “Reset” button to clear all shaping rules to network interface.

Trace File Mode

trace file mode

Set delay(ms), loss(%), rate(Mbps) by floating point number. Select a NIC before upload trace file, click “Start” button to start playback the network trace.

For example

10 1 20
10 1 20
10 1 20
10 1 20

describes a trace that have 10 ms delay, 1% packet loss, and 20 Mbps data rate for 4 seconds (each line represents 1 second). There shouldn’t be blank line in trace file.