Juniper EX4300 Series User Manual

Three variants of the EX4300 switches are available—24-port, 32-port, and 48-port switches, with or
without PoE+, with AC or DC power supplies, and with dierent airow direcons. EX4300 switches
also provide uplink ports and a slot for installing an oponal uplink module.
You can manage EX4300 switches by using the CLI. You can manage EX4300 switches except the
Mulgigabit switches EX4300-48MP and EX4300-48MP-S by using the J-Web graphical interface,
Junos Space, and Network Director. Starng in Junos OS Release 18.3R1, you can manage
EX4300-48MP and EX4300-48MP-S switches by using Junos Space and Network Director also.
This video provides a brief overview of the EX4300-48MP switch:
Video: EX4300-48MP Switch Hardware Overview
Benets of the EX4300 Switch
Compact soluon—The EX4300 switch is a modular single rack unit device that is an apt soluon for
crowded wiring closets and access switch locaons such as data center, campus, and branch oce
environments. It provides carrier-class reliability of modular systems with the economics and exibility
of stackable plaorms.
Support for Virtual Chassis—EX4300 switches support Virtual Chassis technology. You can interconnect
up to 10 EX4300 switches to form a Virtual Chassis.
High availability—EX4300 switches provide high availability through redundant power supplies and fans,
graceful Roung Engine switchover (GRES), and nonstop bridging and roung when deployed in a
Virtual Chassis conguraon.
Support for MACsec—EX4300 switches support IEEE 802.1AE MACsec, providing support for link-layer
data condenality, data integrity, and data origin authencaon. The MACsec feature enables EX4300
to support 88 Gbps of near line-rate hardware-based trac encrypon on all Gigabit Ethernet and
10 Gigabit Ethernet ports.
Soware
Juniper Networks EX Series Ethernet Switches run Junos OS, which provides Layer 2 and Layer 3
switching, roung, and security services. The same Junos OS code base that runs on EX Series switches
also runs on all Juniper Networks M Series, MX Series, and T Series routers, and SRX Series Services
Gateways.
EX4300 Switches First View
EX4300 switches provide connecvity for high-density Gigabit Ethernet data center top-of-rack,
enterprise, and campus aggregaon/core deployments. EX4300 switches can be used in large branch
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Juniper EX4300 Series Specifications

General

Product Series	EX4300 Series
Power Consumption	Varies by model and configuration
Virtual Chassis Technology	Up to 10 switches
Software	Junos OS
Ports	24-port and 48-port models
10GBASE SFP+ Ports	Up to 8 ports
40GBASE QSFP+ Ports	2
Uplink Ports	Up to 4 ports
Jumbo Frames	Up to 9216 bytes
Operating Temperature	0°C to 45°C
Relative Humidity	5% to 90% noncondensing
Input Voltage	100 to 240V AC
Power Supply	AC or DC
Power Supply Options	AC or DC
Stacking	Yes
Layer 2 Features	Includes VLAN, STP, RSTP, MSTP, LACP
Layer 3 Features	OSPF, BGP
Management	CLI, Web GUI, SNMP
Security Features	DHCP snooping
QoS	8 queues per port, DSCP
Storage Temperature	-40°C to 70°C