Spec Sheet

2
Data SheetEX3300 Ethernet Switch
Table 1: EX3300 Models
SKU
Total 10/100/
1000 Ports
Uplinks Airflow
Power Supply
Typ e
PoE+ Power
Budget (W)
Max. System Power
Consumption (W)*
EX3300-24T 24
4 dual-mode
10GbE/GbE
SFP+/SFP
ports
Front-to-back AC 0 51
EX3300-48T 48 Front-to-back AC 0 73
EX3300-48T-BF 48 Back-to-front AC 0 73
EX3300-24P 24 PoE+ Front-to-back AC 405 65
EX3300-48P 48 PoE+ Front-to-back AC 740 81
EX3300-24T-DC 24 Front-to-back DC 0 49
Virtual Chassis Technology
The EX3300 supports Juniper Networks Virtual Chassis
technology, allowing up to 10 switches to be interconnected
over uplink ports and be managed as a single logical device,
delivering a scalable, pay-as-you-grow solution for expanding
network environments.
When deployed in a Virtual Chassis configuration, the EX3300
switches elect a master and backup switch based on a
set of criteria or preconfigured policies. The master switch
automatically creates and updates the switching and optional
routing tables on all switches in the Virtual Chassis configuration.
Virtual Chassis technology allows switches to be added or
removed without service disruption. An EX3300 Virtual Chassis
configuration operates as a highly resilient unified system,
providing simplified management using a single IP address,
single telnet session, single command-line interface (CLI),
automatic version checking, and automatic configuration. The
EX3300 switches are also capable of local switching, so that
packets coming into a port destined for another port on the same
switch do not have to traverse the Virtual Chassis, increasing the
forwarding capacity of the switch.
The EX3300 implements the same slot/module/port numbering
schema as other Juniper Networks chassis-based products
when numbering Virtual Chassis ports, providing true chassis-like
operations. By using a consistent operating system and a single
configuration file, all switches in a Virtual Chassis configuration
are treated as a single device, simplifying overall system
maintenance and management.
Figure 1: EX3300 Virtual Chassis connections
The last two uplink ports on the EX3300 front panel are
configured by default as Virtual Chassis ports, automating Virtual
Chassis deployments when these ports are connected using
standard 10GbE SFP+ or GbE SFP transceivers (sold separately).
These two ports can also be configured as GbE or 10GbE uplinks
to aggregation devices by disabling Virtual Chassis technology.
Converged LAN Environments
The EX3300 switches provide a flexible solution for demanding
converged data, voice, and video environments. The EX3300-24P
and EX3300-48P support the IEEE 802.3at Power over Ethernet
(PoE) standard, also known as PoE+, delivering up to 30 watts of
power per port to support networked devices such as telephones,
video cameras, IEEE 802.11n wireless LAN (WLAN) access points,
and video phones. The PoE+ standard provides nearly double the
15.4 watts per port available with the IEEE 802.3af PoE standard.
Figure 2: EX3300 campus wiring closet deployments
The EX3300-48P includes a total PoE power budget of 740
watts, enabling the switch to provide the full 15.4 watts of
802.3af Class 3 PoE to all 48 ports, or the full 30 watts of PoE+
to 24 ports. The switch can support any combination of PoE and
PoE+ ports until the maximum PoE power budget of 740 watts is
exhausted.
The EX3300-24P includes a total power budget of 405 watts,
enabling the switch to provide the full 15.4 watts of PoE power to
all 24 ports, or the full 30 watts of PoE+ to 13 attached devices.
The switch can support any combination of PoE and PoE+ ports
until the maximum PoE power budget of 405 watts is exhausted.
Closet 1
EX3300
10GbE uplinks
1GbE uplinks
10GbE Virtual Chassis
Closet 2
EX3300
10GbE Virtual Chassis
Aggregation
10GbE
1GbE