Juniper EX4100 User Manual

This procedure describes how to perform the inial conguraon on the switch and connect it to the
network. For complete informaon about enabling the switch to forward trac, including examples, see
the Junos OS conguraon guides.
To perform the inial conguraon on the switch and connect it to the network:
1. Power the switch on.
2. Connect the console port (labeled CON) on the rear panel of the switch to a management host such
as a laptop or PC by using an RJ-45-to-DB-9 serial port adapter.
3. At the Junos OS login prompt, type root to log in. You don't need to enter a password. If the
soware booted before you connected the console port, you might need to press the Enter key for
the prompt to appear.
login: root
4. Start the CLI.
root@:RE:0% cli
root>
5. Enter conguraon mode.
root> configure
[edit]
root#
6. Add a password to the root administraon user account. Enter a clear-text password, an encrypted
password, or an SSH public key string.
[edit]
root# set system root-authentication plain-text-password
New password: password
Retype new password: password
or
[edit]
root# set system root-authentication encrypted-password encrypted-password
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Juniper EX4100 Specifications

General

Model	EX4100
Category	Switch
Layer	Layer 2/3
Power Consumption	Varies by model and configuration
PoE	Optional
Management	Web UI, CLI, SNMP
Operating Temperature	0°C to 45°C
Input Voltage	100-240V AC
Storage Temperature	-40°C to 70°C
Humidity	5% to 90% non-condensing
DC Power Input	-48V DC
JUNOS OS	Yes
Security Features	ACLs
Layer 2 Features	VLAN, RSTP, MSTP, LACP
Layer 3 Features	Static routing, OSPF
QoS	8 queues per port

Summary

Overview

EX4100 and EX4100-F System Overview

Provides a comprehensive overview of the EX4100 and EX4100-F switch system features and capabilities.

EX4100 and EX4100-F Chassis

Details the physical aspects and components of the EX4100 and EX4100-F switch chassis.

Cooling System and Airflow in EX4100 and EX4100-F Switches

Explains the cooling system and airflow mechanisms within the EX4100 and EX4100-F switches.

EX4100 and EX4100-F Power System

Covers the power supply details, including AC and DC options, for EX4100 and EX4100-F switches.

EX4100 and EX4100-F Site Guidelines and Requirements

Environmental Requirements and Specifications for EX4100 and EX4100-F Switches

Specifies environmental conditions (altitude, humidity, temperature) required for EX4100/EX4100-F switch operation.

Rack Requirements

Details the specifications and requirements for mounting EX4100/EX4100-F switches in racks.

Cabinet Requirements

Outlines the size, clearance, and airflow requirements for installing switches in cabinets.

Clearance Requirements for Airflow and Hardware Maintenance for EX4100 and EX4100-F Switches

EX4100 and EX4100-F Network Cable and Transceiver Planning

Pluggable Transceivers and Cables Supported on EX4100 and EX4100-F Switches

Unpack and Mount an EX4100 and EX4100-F Switch

Mount an EX4100 and EX4100-F Switch on Two Posts in a Rack or Cabinet

Provides instructions for mounting the switch on two posts in a rack or cabinet.

Mount an EX4100 and EX4100-F Switch on Four Posts in a Rack or Cabinet

Details the procedure for mounting the switch on four posts in a rack or cabinet.

Mount an EX4100 and EX4100-F Switch in a Recessed Position in a Rack or Cabinet

Mount an EX4100 and EX4100-F Switch on a Wall

Connect the EX4100 and EX4100-F to Power

Connect Earth Ground to an EX4100 and EX4100-F Switch

Explains how to connect the switch chassis to earth ground for safety and EMI compliance.

Connect AC Power to an EX4100 and EX4100-F Switch

Details the procedure for connecting AC power cords to the switch power supplies.

Connect DC Power to an EX4100 Switch

Guides on connecting DC power supplies to the EX4100 switch, emphasizing wiring sequence and polarity.

Connect the EX4100 and EX4100-F Switch to the Network

Install a Transceiver

Configure Junos OS on an EX4100 and EX4100-F Switch

EX4100 and EX4100-F Default Configuration

Explains the factory default configuration settings for EX4100 and EX4100-F switches.

Connect and Configure an EX4100 and EX4100-F Switch

Details the initial configuration process for EX4100/EX4100-F switches via the console port.

Revert to the Default Factory Configuration on an EX Series Switch

Maintain the EX4100 Cooling System

Install a Fan Module in an EX4100 Switch

Remove a Fan Module from an EX4100 Switch

Maintain the EX4100 Power System

Install an AC Power Supply in an EX4100 Switch

Remove an AC Power Supply from an EX4100 Switch

Install a DC Power Supply in an EX4100 Switch

Remove a DC Power Supply from an EX4100 Switch

Maintain Transceivers

Remove a Transceiver

Install a Transceiver

Troubleshoot Hardware

Troubleshoot the EX4100 and EX4100-F Components

Addresses chassis component alarm conditions and troubleshooting temperature alarms in EX Series switches.