1. Connect to the device using one of the following methods:
•
Connect a management device to the console (CON) port on a QFX3500 device.
For instructions about connecting a management device to the console (CON) port,
see Connecting a QFX Series Device to a Management Console.
•
If you are using the QFX3500 device as a standalone switch, you can shut down
the QFX3500 device from a management device on yourout-of-band management
network. For instructions about connecting a management device to the
management (CO or C1) port, see Connecting a QFX3500 Device to a Network for
Out-of-Band Management.
•
Shut down the QFX3500 device from a management device connected through
the QFX3100 Director device in a QFabric system. See request component login for
information about gaining access to individual devices in your QFabric system.
2. Shut down Junos OS from the external management device by issuing the request
system halt operational mode CLI command. This command shuts down the device
gracefully and preserves system state information. A message appears on the console,
confirming that the operating system has halted.
You see the following output (or something similar, depending on the hardware being
shut down) after entering the command:
Shutdown NOW!
[pid 1764]
user@device>
*** FINAL System shutdown message from user@device ***
System going down IMMEDIATELY
JWaiting (max 300 seconds) for system process `vnlru_mem' to stop...done
Waiting (max 300 seconds) for system process `vnlru' to stop...done
Waiting (max 300 seconds) for system process `bufdaemon' to stop...done
Waiting (max 300 seconds) for system process `syncer' to stop...
Syncing disks, vnodes remaining...4 1 1 1 0 0 done
syncing disks... All buffers synced.
Uptime: 1d19h22m25s
The operating system has halted.
Please press any key to reboot.
CAUTION: The final output of any version of the request system halt
command is the “The operating system has halted. Please press any key
to reboot” message. Wait at least 60 seconds after first seeing this
message before following the instructions in Step 4 and Step 5 to remove
power from device.
3. Attach the grounding strap to your bare wrist and to a site ESD point.
Copyright © 2017, Juniper Networks, Inc.144
QFX3500 Device Hardware Documentation
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