Juniper QFX Series Hardware Guide

Table 37: QSFP+ and QSFP28 Network Port Connector Pinout Information (continued)
SignalPin
TX1p36
TX1n37
GND38
USB Port Specifications for the QFX Series
The following Juniper Networks USB flash drives have been tested and are officially
supported for the USB port in the QFX Series:
•
RE-USB-1G-S—1-gigabyte (GB) USB flash drive (except QFX3100 Director device)
•
RE-USB-2G-S—2-GB USB flash drive (except QFX3100 Director device)
•
RE-USB-4G-S—4-GB USB flash drive
CAUTION: Any USB memory product not listed as supported for the QFX
Series has not been tested by Juniper Networks. The use of any unsupported
USB memory product could expose your device to unpredictable behavior.
Juniper Networks TechnicalAssistance Center (JTAC) can provide only limited
support forissues relatedto unsupportedhardware.Westrongly recommend
that you use only supported USB flash drives.
CAUTION: Remove the USB flash drive before upgrading Junos OS or
rebooting a QFX Series device. Failure to do so could expose your device to
unpredictable behavior.
NOTE: Executing the request system snapshot CLI command on a QFX3500
device requires an external USB flash drive with at least 4 GB of free space.
We recommend using the RE-USB-4G-S flash drive.
NOTE: USB flash drives used with the QFX Series device must support
USB 2.0 or later.
Related
Documentation
• Connecting a QFX Series Device to a Management Console
83Copyright © 2019, Juniper Networks, Inc.
Chapter 2: Site Planning, Preparation, and Specifications

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)