Which command is used to obtain the switch chassis serial number?

The command that retrieves the switch chassis serial number is the one that accesses the information stored in the switch's IDPROM, specifically targeting the backplane. This command directly queries the backplane IDPROM for its unique identifier, which includes the chassis serial number.

When executing this command, the switch reads the data that contains critical hardware information, including the serial number, which is essential for inventory management, troubleshooting, and warranty validation. By consulting the IDPROM on the backplane, users can ensure they are accessing the most accurate and definitive identifier for that particular piece of hardware.

While other commands may provide helpful system information or details about modules, they do not specifically target the chassis serial number in the same manner.