What command can be used to view the MAC address of a specific interface on a Cisco device?

The command used to view the MAC address of a specific interface on a Cisco device is "show mac address-table." This command provides a detailed overview of the MAC addresses that are currently being learned by the device on various interfaces. It allows network administrators to identify which MAC addresses are associated with which physical (or virtual) interfaces, thereby facilitating network troubleshooting and management.

When executed, this command displays not only the MAC addresses but also the corresponding VLAN, interface, and dynamically learned or statically configured state of each entry. This information helps in monitoring network traffic flow and can be vital for diagnosing MAC address-related issues, such as duplicate addresses or misconfigurations.

The other options presented do not specifically provide the MAC address information tied to individual interfaces. For instance, viewing the IP address with "show ip address" will not yield any MAC address details, as it focuses on Layer 3 information rather than Layer 2. Similarly, "display macs" is not a command recognized in Cisco IOS syntax and would not serve the intended purpose. Lastly, "view interface details" is too vague and does not correspond to a specific command in Cisco IOS that shows MAC addresses related to interfaces. Hence, "show mac address-table" is the precise command needed to