Juniper QFX5120-48Y-AFI2 User Manual

Quick Start Guide
QFX5120 Switch Quick Start
IN THIS GUIDE
System Overview | 1
Tools and Parts Required for Installation | 2
Part 1: Install a Power Supply | 4
Part 2: Install a Fan Module | 5
Part 3: Mount the Switch on Four Posts of a Rack | 7
Part 4: Connect Power to the Switch | 10
Part 5: Perform Initial Configuration | 13
Safety Warnings Summary | 15
Contacting Juniper Networks | 16
System Overview
The QFX5120 switches deliver low latency, rich Layer 2 and Layer 3 features, and advanced EVPN-VXLAN capabilities.
These switches can be used as data center top-of-rack and as aggregation switches for enterprise multicloud deployments.
These switches are also designed for extremely agile data centers that demand support for overlay and underlay network
architectures.
Two variants of the QFX5120 switches are available—32-port and 48-port switches, with AC or DC power supplies, and
with different airflow directions. Offering native 25-Gigabit Ethernet with 100-Gigabit Ethernet uplink ports on the
QFX5120-48Y, combined with 32 ports of 100-Gigabit Ethernet on the QFX5120-32C, the QFX5120 switches are ideally
suited for spine-and-leaf network deployments. The QFX5120 switches run standard Junos operating system (OS).
QFX5120-48Y switches also support virtual chassis technology. You can interconnect up to two QFX5120-48Y switches
in a QFX5120-48Y virtual chassis.

Juniper QFX5120-48Y-AFI2 Specifications

General

Model	QFX5120-48Y-AFI2
Manufacturer	Juniper Networks
Device Type	Switch
Switching Capacity	3.6 Tbps
Forwarding Rate	2.7 Bpps
Operating System	Junos OS
Operating Temperature	32°F to 104°F (0°C to 40°C)
DRAM	16 GB
Jumbo Frames Support	Yes (up to 9216 bytes)
Virtual Chassis Support	Yes
Management	CLI, SNMP, Web UI
Mean Time Between Failures (MTBF)	Not publicly specified
Operating Relative Humidity	5% to 90% non-condensing
Input Voltage	100-240V AC
Port Configuration	48x 25GbE SFP28 ports, 6x 100GbE QSFP28 ports

Summary

System Overview

QFX5120 Switch Overview

Provides an overview of QFX5120 switch capabilities, variants, and features for data center deployments.

Tools and Parts Required for Installation

Installation Tools and Components

Lists essential tools and parts needed for mounting and installing the QFX5120 switch in a rack.

Install a Power Supply

Power Supply Installation Procedure

Details the step-by-step procedure for installing an AC or DC power supply into the QFX5120 switch chassis.

Install a Fan Module

Fan Module Installation Procedure

Describes the process for installing fan modules into the QFX5120 switch chassis on the rear panel.

Mount the Switch on Four Posts of a Rack

Rack Mounting Steps

Guides users through the steps for securely mounting the QFX5120 switch onto a 19-inch rack using four posts.

Connect Power to the Switch

AC and DC Power Connection

Details the procedures for connecting AC and DC power supplies to the QFX5120 switch, including safety precautions.

Perform Initial Configuration

Console Configuration Steps

Outlines the steps for performing initial configuration of the QFX5120 switch using the console port and CLI.

Safety Warnings Summary

Important Safety Information

Summarizes critical safety warnings for installation and operation, referring to full documentation.

Contacting Juniper Networks

Technical Support Contact

Provides contact information and a URL for obtaining technical support and assistance.