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How are ports protected?
The protected ports feature is a safety measure that prevents ports from forwarding traffic to each other, even if they are on the same VLAN. Each port is designated as either protected or unprotected. By default, all ports are unprotected.
What is a black hole VLAN?
It is a a vlan that is unused where you put unused ports in or hosts that you dont want to be on the network.
What is the default action of port security on the interface when the maximum number of MAC addresses exceeded?
MAC Limit on Untrusted Ports You can also choose to configure the action to take when the number of MAC addresses on the untrusted ports exceeds the configured limit. By default, the MAC limit option for a port is disabled.
How do you enable port security?
To configure port security we need to access the command prompt of switch. Click Switch and click CLI and press Enter Key. Port can be secure from interface mode. Use enable command to move in Privilege Exec mode. From Privilege Exec mode use configure terminal command to enter in Global Configuration mode.
What does port security mean?
Port security. Port security refers to the defense, law and treaty enforcement, and counterterrorism activities that fall within the port and maritime domain. It includes the protection of the seaports themselves, the protection and inspection of the cargo moving through the ports, and maritime security.
What is sticky port security?
Persistent MAC learning, also known as sticky MAC, is a port security feature that enables an interface to retain dynamically learned MAC addresses when the switch is restarted or if the interface goes down and is brought back online.
What is port security switch?
Port security is a layer two traffic control feature on Cisco Catalyst switches. It enables an administrator configure individual switch ports to allow only a specified number of source MAC addresses ingressing the port.