Additional Data Plane Protection Mechanisms
Normally, for data plane protection we think of Layer 3 and routers. Obviously, if traffic is going through a switch, a Layer 2 function is involved, as well. Layer 2 mechanisms that you can use to help protect the data plane include the following:
Port security to protect against MAC address flooding and CAM (content-addressable memory) overflow attacks. When a switch has no more room in its tables for dynamically learned MAC addresses, there is the possibility of the switch not knowing the destination ...
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