About MAC Address Limit 



In order to prevent MAC flooding attacks, starting from NetVisor OS release 2.6.0, a new capability has been added to restrict the maximum number of MAC addresses that can be learned on a switch port. It’s called MAC address limit (or sometimes Port Security). It uses the mac-limit-modify command to set a limit value and a corresponding action to perform when the limit is exceeded. 


The configured policy action determines the remediation strategy that the control plane will undertake: just notify the user or disable the affected port. 


For more details refer to the Limiting the Number of MAC Addresses per Port section below. 


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