Software; Ex4300 Switches First View; 24-Port Ex4300 Switches - Juniper EX4300 Hardware Manual

EX4300 Switch Hardware Guide

Software

EX4300 Switches First View

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Juniper Networks EX Series Ethernet Switches run Junos OS, which provides Layer 2 and
Layer 3 switching, routing, 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. For information about installing software
for your switch, see
Software Installation
EX4300 switches provide connectivity for high-density Gigabit Ethernet data center
top-of-rack, enterprise, and campus aggregation/core deployments. EX4300 switches
can be used in large branch offices, campus wiring closets, and data centers. In data
centers, these switches can be positioned as the top devices in a rack to provide
connectivity for all devices in the rack and provide options for optimized airflow (hot
aisle/cold aisle).
To provide carrier-class reliability, EX4300 switches include:
Dual redundant, load-sharing power supplies that are hot-insertable and hot-removable
field-replaceable units (FRUs).
Two fan modules that are field-replaceable units.
Redundant Routing Engines in a Virtual Chassis or Virtual Chassis Fabric (VCF)
configuration. This redundancy enables graceful Routing Engine switchover (GRES).
Junos OS with its modular design that enables failed system processes to gracefully
restart.
The following EX4300 switches are available:
24-Port EX4300 Switches on page 4
32-Port EX4300 Switches on page 6
48-Port EX4300 Switches on page 7

24-Port EX4300 Switches

The 24-port EX4300 switches—EX4300-24T and EX4300-24P—provide 24 built-in
10/100/1000BASE-T Ethernet network ports and four built-in 40-Gigabit Ethernet quad
small form-factor pluggable plus (QSFP+) ports that can house 40-Gigabit QSFP+
transceivers. All network ports in the EX4300-24P switch are equipped for Power over
Ethernet (PoE+), whereas EX4300-24T has no PoE+ ports. 24-port EX4300 switches
support AC power supply and fan module with front-to-back airflow direction and have
a slot for installing an optional 4-port 10-Gigabit Ethernet SFP+ uplink module, which
has four 10-Gigabit Ethernet small form-factor pluggable plus (SFP+) ports that can
house four 10-gigabit small form-factor pluggable (SFP+) transceivers, four 1-gigabit
small form-factor pluggable (SFP) transceivers, or a combination of four SFP+ and SFP
transceivers.
Figure 1 on page 5 shows the front panel of a 24-port EX4300 switch.
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Copyright © 2017, Juniper Networks, Inc.