Juniper Networks MX480 - Manual (Page 197)

• Issue the following command. The master Routing Engine is designated Master in
the Current state field:
user@host> show chassis routing-engine
Routing Engine status: Slot 0: Current state Master
...
2. If the host subsystem is functioning as the master, switch it to backup using the
command:
user@host> request chassis routing-engine master switch
3. On the console or other management device connected to the Routing Engine that is
paired with the SCB you are removing, enter CLI operational mode and issue the
following command. The command shuts down the Routing Engine cleanly, so its
state information is preserved:
user@host> request system halt
Wait until a message appears on the console confirming that the operating system
has halted.
For more information about the command, see the Junos OS Operational Mode
Commands.
NOTE: The SCB might continue forwarding traffic for approximately 5
minutes after the request system halt command has been issued.
Related
Documentation
Effect of Taking the MX480 Host Subsystem Offline on page 170 •
• MX480 Host Subsystem Description on page 26
• MX480 Host Subsystem LEDs on page 26
• Maintaining the MX480 Host Subsystem on page 128
Operating and Positioning the MX480 SCB Ejectors
• When removing or inserting an SCB, ensure that the SCBs or blank panels in adjacent
slots are fully inserted to avoid hitting them with the ejector handles. The ejector
handles require that all adjacent components be completely inserted so the ejector
handles do not hit them, which could result in damage.
• The ejector handles rotate. After you install an SCB, ensure that the ejectors are
positioned horizontally and do not block any other components or the LEDs. To avoid
blocking the visibility of the LEDs, position the ejectors over the PARK icon.
• To insert or remove the SCB, slide the ejector across the SCB horizontally, rotate it,
and slide it again another quarter of a turn. Turn the ejector again and repeat as
necessary. Utilize the indexing feature to maximize leverage and to avoid hitting any
adjacent components.
• Operate both ejector handles simultaneously. The insertion force on an SCB is too
great for one ejector.
173 Copyright © 2013, Juniper Networks, Inc.
Chapter 14: Replacing MX480 Hardware Components