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. Replacex 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.