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EX4300 Ethernet Switch

EX4300 Ethernet Switch
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Product Overview The Juniper Networks EX4300 line of Ethernet switches delivers the performance and scale required for both campus and data center Gigabit Ethernet (GbE) access switch deployments. Combined with Juniper’s market leading Virtual Chassis technology, the EX4300 scales up to 10 members, delivering the high availability and plug-andplay scale that businesses demand. Combining compact, pay-as-yougrow economics and low power and cooling with the performance, availability, and port densities of chassis-based platforms, the EX4300 with Virtual Chassis technology enables businesses to deploy with speed and agility to increase revenue and improve productivity. Product Description The Juniper Networks® EX4300 line of Ethernet switches with Virtual Chassis technology combines the carrier-class reliability of modular systems with the economics and flexibility of stackable platforms, delivering a high-performance, scalable solution for data center, campus and branch office environments. Offering a full suite of Layer 2 and Layer 3 switching capabilities, the EX4300 enables a variety of deployments, including campus, branch and data center access. A single 24port or 48-port EX4300 switch can be deployed initially. As requirements grow, Juniper Networks Virtual Chassis technology allows up to 10 EX4300 switches to be seamlessly interconnected and managed as a single device, delivering a scalable, pay-as-you-grow solution for expanding network environments. A pair of 32-port EX4300 fiber switches can also be deployed as a consolidated aggregation or small core switch. Additionally, the EX4300 integrates with QFX3500, QFX3600 and QFX5100 10GbE and 40GbE data center access switches in a single stack or a Virtual Chassis configuration, enabling non-disruptive 10GbE server upgrades and simplified management of a mixed access environment. The EX4300 switches can be interconnected over multiple 40GbE quad small formfactor pluggable plus (QSFP+) transceiver ports to form a 320 gigabit per second (Gbps) backplane. A flexible uplink module that supports both 1GbE and 10GbE options is also available, enabling high-speed connectivity to aggregation- or core-layer switches which connect multiple floors or buildings. All EX4300 switches include high availability (HA) features such as redundant, hotswappable internal power supplies and field-replaceable fans to ensure maximum uptime. In addition, Power over Ethernet (PoE)-enabled EX4300 switch models offer standardsbased 802.3at PoE+ for delivering up to 30 watts on all ports for supporting high-density IP telephony and 802.11n wireless access point deployments. Chassis-Like Features in an Expandable Form Factor The fixed-configuration EX4300 switches include a number of high availability features typically associated with chassis-based solutions, including the following: • Hot-swappable fans • Modular Juniper Networks Junos® operating system (consistent with chassis systems) • Dual Routing Engines with graceful Routing Engine switchover (GRES) • Single management interface • Easy, centralized software upgrades • Scalability from 24 to 480 10/100/1000BASE-T ports, with up to 40 10GbE uplinks and 40 40GbE uplinks • Limited lifetime hardware warranty

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Each EX4300 switch includes a single application-specific integrated circuit (ASIC)-based Packet Forwarding Engine, the EX-PFE. The integrated Routing Engine (RE) delivers all control plane functionality. The EX4300 also leverages the same modular Junos OS as other Juniper Networks switches, routers, and security devices, ensuring a consistent implementation and operation of control plane features across the Juniper Networks infrastructure. Architecture and Key Components The EX4300 switches are single rack unit devices that deliver a compact solution for crowded wiring closets and access...

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Collapsed Core/Aggregation 10/40GbE 40GbE Virtual Chassis Port Full Mesh Virtual Chassis Figure 2: Using Virtual Chassis technology, up to 10 EX4300 switches can be interconnected to create a single logical device spanning an entire building. Mesh Virtual Chassis Configurations for the Data Center In data center top-of-rack deployments, a full mesh five-switch Virtual Chassis configuration can be created where every switch member is just one hop away from every other member, delivering the lowest possible latency. A mesh spanning distances of up to 150 meters can be created using standard...

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Features and Benefits Chassis-Class Availability The EX4300 line of Ethernet switches delivers high availability through redundant power supplies and fans, GRES, and nonstop bridging and routing when deployed in a Virtual Chassis configuration. In a Virtual Chassis configuration, each EX4300 switch is capable of functioning as a Routing Engine. When two or more EX4300 switches are interconnected, a single control plane is shared among all Virtual Chassis member switches. When two EX4300 switches are interconnected, Junos OS automatically initiates an election process to assign a master...

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The EX4300 line of Ethernet switches fully integrates with Juniper Networks Unified Access Control (UAC), 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. EX4300 switches support IEEE 802.1ae MACsec*, providing support for link-layer data confidentiality, data integrity, and data origin authentication. The MACsec feature enables the EX4300 to support 88 Gbps of near line-rate hardware-based traffic encryption on all GbE and 10GbE ports, including the base unit...

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The EX4300 also includes port profiles that allow network administrators to automatically configure ports with security, QoS, and other parameters based on the type of device connected to the port. Six preconfigured profiles are available, including default, desktop, desktop plus IP phone, wireless access point, routed uplink, and Layer 2 uplink. Users can select from the existing profiles or create their own and apply them through the command line interface (CLI), Junos Web interface, or management system. The EX4300 switches can be managed through Junos Space Network Director*, a...

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