Powering Off The M120 Router - Juniper M120 Hardware Manual

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Powering Off the M120 Router

Copyright © 2018, Juniper Networks, Inc.
position and observe the output status LED on the power supply faceplate. If the
power supply is correctly installed and functioning properly, the status LED on the
power supply faceplate blinks, then lights steadily approximately one minute after
you switch the power supply on.
NOTE: After powering off a power supply, wait at least 60 seconds before
turning it back on. After powering on a power supply, wait at least 60
seconds before turning it off.
If the system is completely powered off when you power on the power
supply, the Routing Engine boots as the power supply completes its startup
sequence. If the Routing Engine finishes booting and you need to power
off the system again, see
After a power supply is powered on, it can take up to 60 seconds for status
indicators—such as the status LEDs on the power supply and the command
display output—to indicate that the power supply is functioning normally.
Ignore error indicators that appear during the first 60 seconds.
Repeat Step 5 for the second power supply.
6.
NOTE: If any of the output status LEDs does not light steadily, repeat the
installation and cabling procedures.
On the external management device connected to the Routing Engine, monitor the
7.
startup process to verify that the system has booted properly.
M120 AC Power Supply Description on page 72
Connecting Power to an AC-Powered M120 Router on page 167
Connecting Power to a DC-Powered M120 Router on page 169
General Electrical Safety Warnings for Juniper Networks Devices on page 339
To power off the router:
On the external management device connected to the Routing Engine, issue the
1.
request system halt both-routing-engines
shuts down the Routing Engines cleanly, so their state information is preserved. (If
the router contains only one Routing Engine, issue the
user@host> request system halt both-routing-engines
Chapter 21: Providing Power to the M120
"Powering Off the M120 Router" on page
operational mode command. The command
request system halt
171.
command.)
171