Disable the USB Port in Multi-Instance Mode

To disable the USB port in multi-instance mode, you can do so at the FXOS CLI.

Procedure

Step 1

Disable the USB port and reboot for the change to take effect.

  1. Disable the USB port.

    scope fabric-interconnect

    disable usb-port

    commit buffer

  2. Reboot the chassis.

    connect local-mgmt

    reboot

Example:


firepower-4245 /fabric-interconnect # disable usb-port
Note: USB enablement or disablement changes are effected only after FXOS reboot.
Confirm change? (yes/no) [yes]:
device /fabric-interconnect* # commit buffer
Note: USB enablement or disablement changes are effected only after FXOS reboot.
Confirm change? (yes/no) [yes]:yes
firepower-4245 /fabric-interconnect # connect local-mgmt
firepower-4245(local-mgmt)# reboot
Before rebooting, please take a configuration backup.
Do you still want to reboot? (yes/no):yes
Broadcast message from admin@firepower-4245 (Wed Feb 21 05:59:55 2024):
All shells being terminated due to system /sbin/reboot

Step 2

Enable the USB port and reboot for the change to take effect.

  1. Enable the USB port.

    scope fabric-interconnect

    enable usb-port

    commit buffer

  2. Reboot the chassis.

    connect local-mgmt

    reboot

Example:


firepower-4245 /fabric-interconnect # enable usb-port
Note: USB enablement or disablement changes are effected only after FXOS reboot.
Confirm change? (yes/no) [yes]:
device /fabric-interconnect* # commit buffer
Note: USB enablement or disablement changes are effected only after FXOS reboot.
Confirm change? (yes/no) [yes]:yes
firepower-4245 /fabric-interconnect # connect local-mgmt
firepower-4245(local-mgmt)# reboot
Before rebooting, please take a configuration backup.
Do you still want to reboot? (yes/no):yes
Broadcast message from admin@firepower-4245 (Wed Feb 21 05:59:55 2024):
All shells being terminated due to system /sbin/reboot

Step 3

View the USB port status.

scope fabric-interconnect

show usb-port

The Admin State shows the USB port configuration. The Oper State shows the current operation. For example, if you disable the USB port but do not reload, the Admin State will show Disabled while the Oper State would will Enabled.

Example:


firepower-4245# scope fabric-interconnect
firepower-4245 /fabric-interconnect # show usb-port
Usb Port:
Equipment         Admin State Oper State
---------------- -----------  ----------
A                 Disabled    Disabled