boot -T system:blade[x]
Command supported by JUNOS Release 9.1 and later.
(JCS management module CLI) Perform an immediate reset and restart of a specified Routing Engine (blade).
-T system:blade[x]—Specify the Routing Engine to boot. Replace x with the Routing Engine slot number (1 through 12)
supervisor
When you enter this command, you are provided feedback on the status of your request.