What command is used to set the aging time for entries in the MAC address table?

The command used to set the aging time for entries in the MAC address table is "mac address-table aging-time." This command is important for managing the entries in the MAC address table, which is a critical component of network switches. The aging time determines how long an entry remains in the MAC address table after being inactive, thereby preventing the table from becoming full with stale entries.

By specifying the aging time, network administrators can optimize memory usage on the switch and ensure that the MAC address table reflects the current network topology more accurately. When devices are connected and communicate, their MAC addresses are learned and added to the table with a timestamp. If the device does not communicate within the specified aging time, the entry is automatically removed, freeing up space for new entries.

The other commands mentioned do not correctly specify the syntax or functionality needed to set the aging time for the MAC address table, which is why "mac address-table aging-time" is the correct choice.