# Storm control

### 1. Summary

This page is for changing the storm control settings.
If the storm control is enabled, the load on the unit can be reduced by discarding specific frames received that exceed bandwidth threshold values.

### 2. Top page

This is the top page for the storm control settings.

#### 2.1. Storm control settings

- The current settings for the storm control are shown for each interface.

- The table items are explained below.

  - Check box

    - Select the check box for bulk settings or to initialize the settings.

  - Port

    - Displays the interface name.

  - Target frame

    - Displays the target frames for storm control.

  - Upper limit for bandwidth percent

    - Displays the upper limit for the bandwidth percentage. Frames received that exceed the upper limit value are discarded.

- Press the "Setting" button to display the page where you can change the settings of the selected interface.

- If you press the "Specify all" button, the settings can be changed for all interfaces whose check box is selected.

  - The default settings will be applied to the settings on the storm control settings page.

- If you press the "Return to defaults" button, the settings will be initialized on all interfaces whose check boxes are selected.

  - The storm control is disabled for all ports by default.

### 3. Storm control settings page

This page is for storm control settings.
Enter the settings, and then press the "Confirm" button.
If there are no mistakes in the setting confirmation screen, press the "OK" button.

#### 3.1. Storm control settings

- Port

  - Displays the name of the interface for which settings will be made.

- Storm control

  - Select the operation for the storm control from the following options.

    - Disabled

    - Enabled

- Target frame

  - Broadcast frame

    - Enables broadcast storm control.

  - Multicast frame

    - Enables multicast storm control.

  - Unicast frame

    - Enables control for unicast frames sent from an unknown address.

- Upper limit for bandwidth percent

  - Specifies the upper limit value for the bandwidth percentage.

  - Upper limit values can be specified to two decimal places.

  - Frames received that exceed the upper limit value are discarded.

  - The same upper limit value is applied to all applicable frames.

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