Juniper QFX5120-48Y-AFO2 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-AFO2 Specifications

General

Brand	Juniper
Model	QFX5120-48Y-AFO2
Category	Switch
Language	English

Summary

System Overview and Introduction

QFX5120 Switch Capabilities

Details low latency, Layer 2/3 features, EVPN-VXLAN, and agile data center suitability.

QFX5120 Model Variants and Ports

Covers 32-port and 48-port variants, AC/DC power, airflow, and port speeds.

Tools and Parts for Installation

Lists required tools, mounting brackets, screws, and grounding strap.

Installation Procedures

Install Power Supply

Step-by-step guide for installing AC or DC power supplies into the QFX5120 switch.

Install Fan Module

Instructions for installing fan modules into the QFX5120 switch.

Mount Switch in Rack

Procedure for physically mounting the QFX5120 switch into a standard 19-inch rack.

Power Connection and Configuration

Connect AC Power

Steps for connecting AC power, including retainer use and LED checks.

Connect DC Power

Guides for connecting DC power to QFX5120-32C and QFX5120-48Y models.

Perform Initial Configuration

Steps for console connection, basic CLI commands, and network settings.

Safety and Support

Safety Warnings Summary

Summary of critical safety warnings and precautions.

Contacting Juniper Networks

Information on how to contact Juniper Networks for technical support.