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 24-port 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.

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Switch
Security	MAC limiting (per port and per VLAN), Dynamic ARP inspection (DAI), IP source guard, Local proxy ARP, Static ARP support, DHCP snooping, Captive portal, DDoS protection (CPU control path flooding protection)
VLAN	4,093 VLAN with 4,094 VLAN IDs
Manageable	Yes
Layer 2 switching	Yes, Port-based VLAN, Voice VLAN, RTG, PVST+, RVI, UFD, Ethernet Ring Protection Switching, LLDP, LLDP-MED with VoIP integration, MAC learning disable, sticky MAC, MAC notification, PVLANs, ECN, L2PT
Layer 3 Switching	Yes, Static routing, RIPv1/v2, OSPF, BGP, IS-IS
Number of Port	32x 100/1000BASE-X + 4x 10GbE + 2x 40GbE
Stackable	Yes, Virtual Chassis configuration consisting of 10 switches
Redundant Power Supply	Yes, internal redundant, load-sharing, hotswappable, and field-replaceable AC and DC power supplies
Rackmount	Yes
Warranty	Juniper Indonesia Enhanced Limited Lifetime Warranty

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