Configuring Security
Denial of Service Prevention
Cisco Small Business 200 Series Smart Switch Administration Guide 249
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Unwanted traffic burdens the CPU, and might prevent normal switch operation.
The switch uses the Secure Core Technology (SCT) feature, which ensures that
the switch receives and processes 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.
SCT can be monitored in the
Denial of Service > Denial of Service Prevention >
Security Suite Settings
page (Details button).
Denial of Service Security Suite Settings
NOTE Before activating DoS Prevention, you must unbind all Access Control Lists (ACLs)
or advanced QoS policies that are bound to a port. ACL and advanced QoS policies
are not active when a port has DoS Protection enabled on it.
To configure DoS Prevention global settings and monitor SCT:
STEP 1 Click Security > Denial of Service Prevention > Security Suite Settings. The
Security Suite Settings displays.
CPU Protection Mechanism: Enabled indicates that SCT is enabled.
STEP 2 Click Details beside CPU Utilization to enable viewing CPU resource utilization
information.
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