Viewing CPU Utilization and Secure Core Technology

This section describes the Secure Core Technology (SCT) and how to view CPU usage.

The switch handles the following types of traffic, in addition to end-user traffic:

Unwanted traffic burdens the CPU, and might prevent normal switch operation.

The switch uses the Secure Core Technology (SCT) feature to ensure that the switch will receive and process management and protocol traffic, no matter how much total traffic is received.

SCT is enabled by default on the device and cannot be disabled.

There are no interactions with other features.

To display CPU utilization:

  1. Click Administration > Diagnostics > CPU Utilization.
  2. or

  3. Click Security > Denial of Service Prevention > Security Suite Settings and click Details.
  4. The CPU Utilization page opens.

    The CPU Input Rate field displays the rate of input frames to the CPU per second.

  5. Select CPU Utilization to enable viewing CPU resource utilization information.
  6. The window displays a graph of the CPU utilization. The Y axis is percentage of usage, and the X axis is the sample number.

  7. Select the Refresh Rate (time period in seconds) that passes before the statistics are refreshed. A new sample is created for each time period.