The port security violation mode that is enabled by default is the "Shutdown" mode. Here are the steps to understand this:

1. Cisco switches have a feature called Port Security that allows you to secure your network by restricting the number of MAC addresses on a per-port basis.

2. When a port security violation occurs, the switch can take one of three actions: Protect, Restrict, or Shutdown.

3. Protect: This mode permits traffic from known MAC addresses and drops traffic from unknown MAC addresses, but it does not send a notification that a violation has occurred.

4. Restrict: This mode permits traffic from known MAC addresses and drops traffic from unknown MAC addresses, but it sends a notification that a violation has occurred.

5. Shutdown: This mode is the most secure. It permits traffic from known MAC addresses and immediately shuts down the port when a violation occurs. The port remains shut down until it is manually reopened.

6. By default, Cisco switches are configured to use the Shutdown mode when a port security violation occurs. This is because it provides the highest level of security by completely disabling the port if an unauthorized device is detected.

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The port security violation mode that is enabled by default is the "Shutdown" mode. Here are the steps to understand this:

1. Cisco switches have a feature called Port Security that allows you to secure your network by restricting the number of MAC addresses on a per-port basis.

2. When a port security violation occurs, the switch can take one of three actions: Protect, Restrict, or Shutdown.

3. Protect: This mode permits traffic from known MAC addresses and drops traffic from unknown MAC addresses, but it does not send a notification that a violation has occurred.

4. Restrict: This mode permits traffic from known MAC addresses and drops traffic from unknown MAC addresses, but it sends a notification that a violation has occurred.

5. Shutdown: This mode is the most secure. It permits traffic from known MAC addresses and immediately shuts down the port when a violation occurs. The port remains shut down until it is manually reopened.

6. By default, Cisco switches are configured to use the Shutdown mode when a port security violation occurs. This is because it provides the highest level of security by completely disabling the port if an unauthorized device is detected.

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The port security violation mode that is enabled by default is the "Shutdown" mode. Here are the steps to understand this:

1. Cisco switches have a feature called Port Security that allows you to secure your network by restricting the number of MAC addresses on a per-port basis.

2. When a port security violation occurs, the switch can take one of three actions: Protect, Restrict, or Shutdown.

3. Protect: This mode permits traffic from known MAC addresses and drops traffic from unknown MAC addresses, but it does not send a notification that a violation has occurred.

4. Restrict: This mode permits traffic from known MAC addresses and drops traffic from unknown MAC addresses, but it sends a notification that a violation has occurred.

5. Shutdown: This mode is the most secure. It permits traffic from known MAC addresses and immediately shuts down the port when a violation occurs. The port remains shut down until it is manually reopened.

6. By default, Cisco switches are configured to use the Shutdown mode when a port security violation occurs. This is because it provides the highest level of security by completely disabling the port if an unauthorized device is detected.

What port security violation mode is enabled by default?

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