Juniper QFX Series User Manual

operational mode CLI command. The specified device becomes the new master
Director device, and the previous master Director device becomes a backup Director
device.
4. Press the power switch on the QFX3100 Director devicerear panel to initiate a graceful
shutdown.
NOTE: Pressing the power switch momentarily either causes the system
to power on or causes a graceful shutdown. Pressing the power switch
for 4 seconds or longer causes an abrupt power shutdown.
5. Observe the power supply faceplate LEDs. The AC power supply LED should turn off.
6. On the externalmanagementdevice, you canmonitorthe shutdownprocess to ensure
that the system shuts down properly.
Related
Documentation
Powering On a QFX3100 Director Device on page 220•
• Connecting AC Power to a QFX3100 Director Device on page 218
Powering Off a QFX3008-I Interconnect Device
Before you power off the device:
•
Ensure that you understand how to prevent ESD damage. See “Prevention of
Electrostatic Discharge Damage” on page 192.
•
Ensure that you do not need to forward traffic through the device.
Ensure that you have the following parts and tools available to power off the device:
•
An ESD grounding strap
•
An external management device such as a PC
•
An RJ-45 to DB-9 rollover cable to connect the external management device to the
console (CON) port
To power off the device:
1. Connect a management device to the console (CONSOLE) port on the master Control
Board in the QFX3008-I Interconnect device. For instructions about connecting a
management device to the console (CONSOLE) port, see “Connecting a QFX Series
Device to a Management Console” on page 285.
2. Shut down the 16-port QSFP+ front cards in the QFX3008-I Interconnect devicef.
Issue the request fpc offline operational mode CLI command.
This command shuts down the front cards gracefully. As the front cards go offline,
traffic will be routed to other QFX3008-I Interconnect devices in your QFX3000
QFabric system.
Copyright © 2012, Juniper Networks, Inc.296
QFX3000 Hardware Documentation

Juniper QFX Series Specifications

General

Category	Switch
Series	QFX
Form Factor	1U, 2U, and modular chassis options
Power Supply	Redundant, hot-swappable power supplies
Cooling	hot-swappable fans
Virtual Chassis	Supported on certain models
Typical Use	Data center, cloud
Operating System	Junos OS
Management	CLI
Key Features	High performance, low latency, automation
Latency	Sub-microsecond latency
Port Density	Varies by model (e.g., QFX5100: up to 48x10GbE + 6x40GbE)