Product Overview:
Juniper Networks EX3300 switch
delivers a high-performance,
flexible and cost-effective solution
for today’s most demanding
converged data, voice, and video
enterprise access environments. It
supports Juniper Networks Virtual
Chassis technology, allowing up to
10 switches to be interconnected
over uplink ports and managed as
a single logical device to deliver
a scalable, pay-as-you-grow
solution for expanding network
environments.
Product Description
The Juniper Networks® EX3300 Ethernet Switch with Virtual Chassis technology
provides enterprises with the flexibility and ease of management that previously
was only available with higher end access switches. The fixed configuration EX3300
supports a number of key features:
- 24-port and 48-port models with and without Power over Ethernet (PoE) for
campus wiring closet deployments
- Data center-optimized cooling options, which offer both front-to-back and
back-to-front airflows, and make the EX3300 suitable for GbE data center
access deployments
- 24-port data center models for metro deployments
- Four dual-mode (GbE/10GbE) small form-factor pluggable transceiver (SFP/
SFP+) uplink ports
- Uplink ports that can be configured as Virtual Chassis interfaces and connected
via standard GbE/10GbE optics interfaces (the last two uplink ports are
preconfigured by default as Virtual Chassis ports)
- Comprehensive Layer 2 functionality with RIP and static routing
- Compact, 12-inch deep 1 U form factor to enable flexible deployment options
- Easy-to-manage solution with centralized software upgrades and a single
management interface, along with an LCD for managing Virtual Chassis
configurations
- Same consistent modular Juniper Networks Junos® operating system control
plane feature implementation as other fixed configuration switches in the
Juniper Networks EX Series Ethernet Switch product family
- Layer 3 (OSPF v2, IGMP v1/v2/v3, PIM, VRRP, Q-in-Q , BFD, Virtual Router)
supported via enhanced feature license
- BGP and MBGP supported via advanced feature license
- IPv6 management support, including neighbor discovery, stateless auto
configuration, telnet, SSH, DNS, syslog, NTP, ping, traceroute, ACL, CoS static
routing and RIPng
- IPv6 routing features (OSPFv3, virtual router support for unicast, VRRPv6, PIM,
MLDv1/v2) supported via enhanced feature license
- Additional IPv6 routing features (BGP and MBGP) supported via advanced
feature license
EX3300 Models
| SKU |
Total 10/100/1000BASE-T Ports |
Uplinks |
Airflow |
Power Supply Type |
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.
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.
Data Center Gigabit Ethernet Server Access
The EX3300 switches are optimized for GbE server access
deployments in the data center, with front-to-back and backto-front cooling. The four SFP+ uplink ports on the EX3300 can operate at 10 Gbps simultaneously, offering up to 20GbE of uplink connectivity to each of the dual aggregation switches.
Features & Benefits:
| Features |
Benefits |
| Carrier-class reliability |
EX Series switches leverage the same field-proven Juniper technology - including high-performance ASICs, a carrier-class system architecture, and JUNOS Software -- that powers the world's largest service provider networks. |
| Security risk management |
EX Series switches tightly integrate with Juniper's Unified Access Control (UAC) solution, dynamically delivering network protection, guest access and identity-based QoS based on user, device, and location. |
| Performance |
Each of the EX Series switches deliver wire-speed performance on all ports for any packet size. |
| Application control |
The EX Series switches support eight QoS queues per port, ensuring proper prioritization of control plane, voice, video, and multiple levels of data traffic—with room to converge other networks, such as building automation and video security systems. |
| Lower total cost of ownership |
The innovations of the EX Series switches enable new architectures that reduce cost and complexity. Unified management and automation tools consolidate system monitoring and maintenance and save time and money. |
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
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.
There are two PoE power mode settings on the EX3300 switches:
- Static mode, which allows customers to specify the maximum PoE power setting on an individual port
- Class mode, which allows end devices to specify PoE class and negotiate whether the switch can provide PoE power to the device
The EX3300 also supports the industry-standard Link Layer Discovery Protocol (LLDP) and LLDP-Media Endpoint Discovery (LLDP-MED), which enable the switches to automatically discover Ethernet-enabled devices, determine their power requirements, and assign virtual LAN (VLAN) parameters.
In addition, the EX3300 supports rich quality-of-service (QoS) functionality for prioritizing data, voice, and video traffic. The switches support eight QoS queues on every port, enabling them to maintain multilevel, end-to-end traffic prioritization. The EX3300 also supports a wide range of scheduling options, such as priority and shaped deficit weighted round-robin (SDWRR) scheduling.
An optional enhanced license for supporting additional L3 protocols such as OSPF, Internet Group Management Protocol (IGMP v1/v2/v3), and Protocol Independent Multicast (PIM) will be supported in future. An external redundant power system (RPS) delivering additional power resiliency is also available.
Security
The EX3300 switches fully interoperate with Juniper Networks Unified Access Control, which consolidates all aspects of a user's identity, device, and location, enabling administrators to enforce access control and security down to the individual port or user levels. Working as an enforcement point within the UAC, the EX3300 provides both standards-based 802.1X port-level access control and Layer 2-4 policy enforcement based on user identity, location, and/or device. A user's identity, device type, machine posture check, and location can be used to not only grant or deny access but also to determine the duration of access. If access is granted, the switch assigns the user to a specific VLAN based on authorization levels. The switch can also apply QoS policies or mirror user traffic to a central location for logging, monitoring, or threat detection by intrusion prevention systems (IPS).
The EX3300 also provides a full complement of port security features, including Dynamic Host Configuration Protocol (DHCP) snooping, dynamic ARP inspection (DAI), and media access control (MAC) limiting to defend against internal and external spoofing, man-in-the-middle, and denial-of-service (DoS) attacks.
In addition, the EX3300 switches are hardware ready (with software support available in a future release) to support IEEE 802.1ae MACSec, providing support for link layer data confidentiality, data integrity, and data origin authentication.
Junos Operating System
The EX3300 switches run the same Junos OS used by other EX Series Ethernet Switches, as well as Juniper routers and Juniper Networks SRX Series Services Gateways. By utilizing a common operating system, Juniper delivers a consistent implementation and operation of control plane features across all products. To maintain that consistency, Junos OS adheres to a highly disciplined development process that uses a single source code, follows a single quarterly release train, and employs a highly available modular architecture that prevents isolated failures from bringing an entire system down.
These attributes are fundamental to the core value of the software, enabling all Junos OS-powered products to be updated simultaneously with the same software release. All features are fully regression tested, making each new release a true superset of the previous version; customers can deploy the software with complete confidence that all existing capabilities will be maintained and operate in the same way.
High Availability
The EX3300 line of Ethernet switches is designed to support many of the same failover capabilities and high availability (HA) functionality as the Juniper Networks EX4200 line of Ethernet switches with Virtual Chassis technology.
Each EX3300 switch is capable of functioning as a Routing Engine when deployed in a Virtual Chassis configuration. When two or more EX3300 switches are interconnected in a Virtual Chassis configuration, all member switches share a single control plane. Junos OS automatically initiates an election process to assign a master (active) and backup (hot-standby) Routing Engine. An integrated Layer 2 and Layer 3 graceful Routing Engine switchover (GRES) feature maintains uninterrupted access to applications, services, and IP communications in the unlikely event of a master Routing Engine failure.
When more than two switches are interconnected in a Virtual Chassis configuration, the remaining switch elements act as line cards and are available to assume the backup Routing Engine position should the designated master fail. Master, backup and line card priority status can be assigned by the network operations team to dictate the order of ascension. This N+1 Routing Engine redundancy, coupled with GRES, the nonstop routing (NSR) and, in the future, the nonstop bridging (NSB) capabilities of Junos OS, ensures a smooth transfer of control plane functions following unexpected failures.
The EX3300 also supports the following HA features:
- Redundant trunk group: To avoid the complexities of Spanning Tree Protocol (STP) without sacrificing network resiliency, the EX3300 employs redundant trunk groups to provide the necessary port redundancy and simplify switch configuration.
- Cross-member link aggregation: Cross-member link aggregation allows redundant link aggregation connections between devices in a single Virtual Chassis configuration, providing an additional level of reliability and availability.
