Juniper QFX Series User Manual

Password: password
NOTE: The password is the root password for the QFX3500 device. If you
logged in to the device as root, you do not need to perform this step.
5. Enter the following command:
root@device% dd if=/var/tmp/filename of=/dev/da1 bs=16k
The device writes the installation media image to the USB device:
root@device% dd if=/var/tmp/install-media-qfx3500.junos_11.1 of=/dev/da1
bs=16k
11006+1 records in
11006+1 records out
180332544 bytes transferred in 71.764266 secs (2512846 bytes/sec)
6. Log out of the shell:
root@device% exit
% exit
user@device>
Related
Documentation
USB Port Specifications for the QFX Series on page 105•
• Performing a Recovery Installation on a QFX3500 Device and QFX3008-I Interconnect
Device on page 409
• Performing a QFabric Switch Recovery Installation on the Director Group on page 410
• Performing a Recovery Installation of the Director Group on page 420
Copyright © 2012, Juniper Networks, Inc.408
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)