Which device port is used to view POST for the OS9700?

• A. Console port of the active Chassis Management Module (CMM).
• B. Management VLAN interface.
• C. USB console port.
• D. Ethernet management port.

Answer: (A)

Viewing POST output for the OS9700 happens through the serial console of the active Chassis Management Module. The CMM controls the chassis and prints the hardware self-test and boot messages during power-up, so connecting a terminal to the active CMM’s Console port lets you see POST progress and any initialization details. After boot, management access moves to the Ethernet management port or the management VLAN, not POST output. While a USB console port might be available, the standard way to observe POST on this platform is via the active CMM’s console port.