Juniper EX4300-48T-DC Switch

Juniper EX4300-48T-DC Switch

The Juniper EX4300-48T-DC is a high-performance, enterprise-class Ethernet switch that is particularly built for high-density installations. It is a member of the EX4300 switch series, which is noted for its high performance, scalability, and flexibility. It is equipped with advanced security features, including port security, MACsec encryption, DHCP snooping and protection from unauthorized access.

Key Features:

• 48-port 10/100/1000BASE-T
• 4 dual-mode 1GbE/10GbE uplinks
• DC power supply
• Virtual Chassis

You can check the EX4300-48T-DC datasheet and its compatible accessories from the tabs.

Properties	Juniper EX4300-48T-DC
Description	48-port 10/100/1000BASE-T + 550 W DC PS (QSFP+ DAC for Virtual Chassis ordered separately)
Product Family	EX4300 Series
Product Type	Ethernet Switch
GbE Port Density	56 (48 host ports + four 40GbE ports + optional four-port 1/10GbE uplink module) -10GbE port density per system: 4 (uplink module) -40GbE port density per system: 4 (fixed)
Dimensions (HxWxD) Inches	Base unit: 17.36 x 1.72 x 16.38 in (44.1 x 4.37 x 41.6 cm) With power supply installed: 17.36 x 1.72 x 17.51 in (44.1 x 4.37 x 44.47 cm) With power supply and front module installed: 17.36 x 1.72 x 18 in (44.1 x 4.37 x 45.73 cm)
Weight	EX4300 switch (with no power supply or fan module): 13 lb (5.9 kg) EX4300 switch (with single power supply and two fan modules): 16.1 lb (7.3 kg) 350 W AC power supply: 2.4 lb (1.1 kg) 715 W AC power supply: 2.4 lb (1.1 kg) 1100 W AC power supply: 2.4 lb (1.1 kg) 550 W DC power supply: 2.4 lb (1.1 kg) SFP+ uplink module: 0.44 lb (0.2 kg) Fan module: 0.33 lb (0.15 kg)
Uplink Module Options	4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics
Backplane	320 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device
Product Options	Access Port Configuration
EX4300-48T	48-port 10/100/1000BASE-T
Access Port Configuration	48-port 10/100/1000BASE-T
PoE /PoE+ Ports	0
PoE Budget	0 W
10GbE Ports (max. with module)	0 (4)
40GbE Ports (max. with module)	4
100GbE Ports (max. with module)	0
Power Supply Rating	550 W DC
Airflow	AFO (Front-to-back airflow)
Acoustic Noise in DB	37.8
Power Options	Power supplies: Autosensing; 100-120 V/200-240 V; AC 350 W AFO, 350 W AFI, 715 W AFO, and 1100 W AFO dual load-sharing hot-swappable internal redundant power supplies Maximum current inrush: 50 amps EX4300-48MP: 100-120 V/200-240 V; AC 715 W AFO, 1100 W AFO, 1400 W AFO dual load-sharing hot-swappable internal redundant power supplies DC power supply: 550 W DC AFO and 550 W DC AFI; input voltage range 43.5-60 V max (+/- 0.5 V); dual input feed, dual load-sharing hot-swappable internal redundant power supplies Minimum number of PSUs required for fully loaded chassis: 1 per switch
Supported Optics	GbE SFP optic/connector type: LC SFP fiber supporting SX (multimode), LX (single-mode) 10GbE SFP+ optic/connector type: 10GbE SFP+ LC connector, SR (multimode), USR (multimode), LR (single-mode), ER (single-mode), LRM (multimode), and DAC (direct-attach copper) 40 GbE QSFP+ optic/connector type: 40GbE QSFP+ LC connector type, SR (multimode), DAC (direct-attach copper) 100 GbE QSFP28 optic type: 100GbE QSFP SR4, LR4, DAC (direct-attach copper)

Specifications	EX4300-48T-DC
DRAM	2 GB with ECC
Storage	2 GB
CPU	1.5 GHz Dual-Core PowerPC CPU
Physical Layer	Time domain reflectometry (TDR) for detecting cable breaks and shorts: 24P/24T and 48P/48T only Auto medium-dependent interface/medium-dependent interface crossover (MDI/MDIX) support: 24P/24T and 48P/48T/48MP only (all ports) Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports: 24P/24T and 48P/48T/48MP only, on all ports Digital optical monitoring for optical ports
Packet-Switching Capacities	248 Gbps (unidirectional)/496 Gbps (bidirectional)
Software Specifications
Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets)	369 Mpps (wire speed)
Layer 2 Features	Maximum MAC addresses per system: 64,000 Jumbo frames: 9216 Bytes Number of VLANs supported: 4093 Range of possible VLAN IDs: 1 to 4094 Virtual Spanning Tree (VST) instances: 510 Port-based VLAN Voice VLAN Physical port redundancy: Redundant trunk group (RTG) Compatible with Per-VLAN Spanning Tree Plus (PVST+) Routed VLAN Interface (RVI) Uplink Failure Detection (UFD) ITU-T G.8032: Ethernet Ring Protection Switching IEEE 802.1AB: Link Layer Discovery Protocol (LLDP) LLDP-MED with VoIP integration Default VLAN and multiple VLAN range support MAC learning deactivate Persistent MAC learning (sticky MAC) MAC notification Private VLANs (PVLANs) Explicit congestion notification (ECN) Layer 2 protocol tunneling (L2PT) IEEE 802.1ak: Multiple VLAN Registration Protocol (MVRP) IEEE 802.1p: CoS prioritization IEEE 802.1Q: VLAN tagging IEEE 802.1X: Port Access Control IEEE 802.1ak: Multiple Registration Protocol IEEE 802.3: 10BASE-T IEEE 802.3u: 100BASE-T IEEE 802.3ab: 1000BASE-T IEEE 802.3z: 1000BASE-X IEEE 802.3ae: 10-Gigabit Ethernet IEEE 802.3ba: 40-Gigabit Ethernet IEEE 802.3af: Power over Ethernet IEEE 802.3at: Power over Ethernet Plus IEEE 802.3x: Pause Frames/Flow Control IEEE 802.3ah: Ethernet in the First Mile
Layer 3 Features: IPv4	Maximum number of ARP entries: 64,000 Maximum number of IPv4 unicast routes in hardware: 16,000 prefixes; 32,000 host routes Maximum number of IPv4 multicast routes in hardware: 8000 multicast groups; 16,000 multicast routes Routing protocols: RIPv1/v2, OSPF, BGP, IS-IS Static routing Routing policy Bidirectional Forwarding Detection (BFD) L3 redundancy: Virtual Router Redundancy Protocol (VRRP) VRF-Lite
Layer 3 Features: IPv6	Maximum number of Neighbor Discovery (ND) entries: 32,000 Maximum number of IPv6 unicast routes in hardware: 4000 prefixes; 15,000 host routes Maximum number of IPv6 multicast routes in hardware: 8000 multicast groups; 16,000 multicast routes Routing protocols: RIPng, OSPFv3, IPv6, ISIS Static routing
Access Control Lists (ACLs) (Junos OS Firewall Filters)	Port-based ACL (PACL): Ingress and egress VLAN-based ACL (VACL): Ingress and egress Router-based ACL (RACL): Ingress and egress ACL entries (ACE) in hardware per system: Port-based ACL (PACL) ingress: 3072 VLAN-based ACL (VACL) ingress: 3500 Router-based ACL (RACL) ingress: 7000 Egress shared across PACL and VACL: 512 Egress across RACL: 1024 ACL counter for denied packets ACL counter for permitted packets Ability to add/remove/change ACL entries in middle of list (ACL editing) L2-L4 ACL
Security	MAC limiting (per port and per VLAN) Allowed MAC addresses configurable per port Dynamic ARP inspection (DAI) IP source guard Local proxy ARP Static ARP support DHCP snooping Captive portal Persistent MAC address configurations Distributed denial of service (DDoS) protection (CPU control path flooding protection)
High Availability	Redundant, hot-swappable power supplies Redundant, field-replaceable, hot-swappable fans Graceful Routing Engine switchover (GRES) for Layer 2 hitless forwarding and Layer 3 protocols on RE failover Graceful protocol restart (OSPF, BGP) Layer 2 hitless forwarding on RE failover Nonstop bridging: LACP, xSTP Nonstop routing: PIM, OSPF v2 and v3, RIP v2, RIPnG, BGP, BGPv6, ISIS, IGMP v1, v2, v3 Online insertion and removal (OIR) uplink module
Quality of Service (QoS)	L2 QoS L3 QoS Ingress policing: 1 rate 2 color Hardware queues per port: 12 Scheduling methods (egress): Strict priority (SP), WDRR 802.1p, DiffCode (DSCP)/IP precedence trust and marking L2-L4 classification criteria: Interface, MAC address, Ethertype, 802.1p, VLAN, IP address, DSCP/IP precedence, TCP/UDP port numbers, and more Congestion avoidance capabilities: Tail drop, weighted random early detection (WRED)
Multicast	IGMP: v1, v2, v3 IGMP snooping Multicast Listener Discovery (MLD) snooping PIM-SM, PIM-SSM, PIM-DM
Services and Manageability	Junos OS CLI Junos Web interface (J-Web) Out-of-band management: Serial; 10/100/1000BASE-T Ethernet ASCII configuration Rescue configuration Configuration rollback Image rollback LCD management Element management tools: Juniper Networks Network and Security Manager (NSM) Remote performance monitoring Proactive services support via Advanced Insight Solutions (AIS) SNMP: v1, v2c, v3 RMON (RFC 2819) Groups 1, 2, 3, 9 Network Time Protocol (NTP) DHCP server DHCP client and DHCP proxy DHCP relay and helper DHCP local server support RADIUS TACACS+ SSHv2 Secure copy HTTP/HTTPs Domain Name System (DNS) resolver System logging Temperature sensor Configuration backup via FTP/secure copy
Management and Analytics Platforms	Juniper Mist Wired Assurance for Campus Junos Space®Network Director for Campus Junos Space® Management
Spanning Tree	IEEE 802.1D: Spanning Tree Protocol IEEE 802.1s: Multiple instances of Spanning Tree Protocol (MSTP) Number of MST instances supported: 64 Number of VLAN Spanning Tree Protocol (VSTP) instances supported: 510 IEEE 802.1w: Rapid reconfiguration of Spanning Tree Protocol
Link Aggregation	IEEE 802.3ad: Link Aggregation Control Protocol 802.3ad (LACP) support: -Number of LAGs supported: 128 -Maximum number of ports per LAG: 16 LAG load-sharing algorithm bridged or routed (unicast or multicast) traffic: -IP: S/D IP -TCP/UDP: S/D IP, S/D Port -Non-IP: S/D MAC Tagged ports support in LAG
Access Security	802.1X port-based 802.1X multiple supplicants 802.1X with VLAN assignment 802.1X with authentication bypass access (based on host MAC address) 802.1X with VoIP VLAN support 802.1X dynamic ACL based on RADIUS attributes 802.1X Supported Extensible Authentication Protocol (EAP types): Message Digest 5 (MD5), Transport Layer Security (TLS), Tunneled TLS (TTLS), Protected Extensible Authenticated Protocol (PEAP) MAC authentication (RADIUS) Control plane DoS protection Radius functionality over IPv6 for authentication, authorization, and accounting (AAA) DHCPv6 snooping IPv6 neighbor discovery IPv6 source guard IPv6 RA guard IPv6 Neighbor Discovery Inspection Media Access Control security (MACsec)
Cooling	Field-replaceable fans: 2 Airflow: PSU-7.5 cubic feet per minute (CFM); fan-22 CFM Total maximum airflow throughput with two power supplies: 59 CFM
Power Supply Rating	550 W DC AFO
Operating temperature	32° to 113° F (0° to 45° C)
Storage temperature	-40° to 158° F (-40° to 70° C)
Operating altitude	up to 10,000 ft (3048 m)
Non-operating altitude	up to 16,000 ft (4877 m)
Relative humidity operating	10% to 85% (noncondensing)
Relative humidity non-operating	0% to 95% (noncondensing)
Safety and Compliance	UL-UL_60950-1 (First Edition) +UL_62368-1 CAN/CSA C22.2 No. 60950-1 +CAN/CSA C22.2 No. 62368-1 EN 60950-1 Information Technology Equipment—Safety IEC 60950-1 Information Technology Equipment—Safety +IEC 62368-1 Audio/video, information and communication technology equipment – Part 1: Safety requirements )
Electromagnetic Compatibility Certifications	FCC 47CFR Part 15 Class A EN 55022 Class A ICES-003 Class A VCCI Class A AS/NZS CISPR 22 Class A CISPR 22 Class A EN 55024 EN 300386 CE
Telco	CLEI code
Environmental	Reduction of Hazardous Substances (ROHS) 6/6
NEBS	GR-1089-Core: EMC and Electrical Safety for Network Telecommunications Equipment
Troubleshooting	Debugging: CLI via console, Telnet, or SSH Diagnostics: Show and debug command, statistics Traffic mirroring (port) Traffic mirroring (VLAN) IP tools: Extended ping and trace Juniper Networks commit and rollback
Traffic Monitoring	ACL-based mirroring Mirroring destination ports per system: 4 LAG port monitoring Multiple destination ports monitored to 1 mirror (N:1) Maximum number of mirroring sessions: 4 Mirroring to remote destination (over L2): 1 destination VLAN

Accessories and License Upgrade PIDs
EX-4PST-RMK	Adjustable 4-post rack-mount kit for EX4200, EX4300, and EX3200
EX-RMK	Rack-mount kit for EX2200, EX3200, EX4200, EX4300, and EX4550
EX-WMK	EX4200, EX4300, and EX3200 wall-mount kit
Feature Licenses
EX4300-48-EFL	Enhanced Feature License (EFL) for EX4300-48T, EX4300-48T-AFI, EX4300-48T-DC, EX4300-48T-AFI-DC, EX4300-48P, and EX4300-48MP
EX4300-48-AFL	Advanced Feature License (AFL) for EX4300-48T, EX4300-48T-AFI, EX4300-48T-DC, EX4300-48T-AFI-DC, EX4300-48P, and EX4300-48MP
EX-QFX-MACSEC-ACC3	MACsec Software License for EX4300 and EX4200 access switches
Subscription Licenses
S-EX-A-C3-3	Software, EX Series Advanced license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 3 year
S-EX-A-C3-5	Software, EX Series Advanced license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 5 year
S-EX-P-C3-3	Software, EX Series Premium license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 3 year
S-EX-P-C3-5	Software, EX Series Premium license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 5 year
S-EX-A-C3-3-COR	Software, EX Series Advanced license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 3 year with SVC CORE support, 3 YEAR
S-EX-A-C3-5-COR	Software, EX Series Advanced license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 3 year with SVC CORE support, 5 YEAR
S-EX-P-C3-3-COR	Software, EX Series Premium license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 3 year with SVC CORE support, 3 YEAR
S-EX-P-C3-5-COR	Software, EX Series Premium license, Class 3 (32 or 48 ports), includes Wired Assurance subscription for EX Series 48-port switches, 3 year with SVC CORE support, 5 YEAR
Perpetual Licenses
S-EX-A-C3-P	Software, EX Series Advanced license, Class 3 (32 or 48 ports), Perpetual license for EX4300 48-port switches
S-EX-P-C3-P	Software, EX Series Premium license, Class 3 (32 or 48 ports), Perpetual license for EX4300 48-port switches
EX-QFX-MACSEC-ACC4	MACsec software license for EX3400, EX4300, and EX4200 access switches
Uplink Modules
EX-UM-4X4SFP	EX4300 4-port 1GbE/10GbE SFP+ Uplink Module for EX4300-24T, EX4300-48T, EX4300-48T-AFI, EX4300-48T-DC, EX4300-48T-DC-AFI, EX4300-24P and EX4300-48P
Power Supplies
JPSU-350-AC-AFO	EX4300 350 W AC power supply (power cord needs to be ordered separately) (front-to-back airflow)
JPSU-350-AC-AFI	EX4300 350 W AC power supply with airflow in (power cord needs to be ordered separately) (back-to-front airflow)
JPSU-715-AC-AFO	EX4300 715 W AC power supply (power cord needs to be ordered separately) (front-to-back airflow)
JPSU-1100-AC-AFO	EX4300 1100 W AC power supply (power cord needs to be ordered separately) (front-to-back airflow)
JPSU-1400-AC-AFO	EX4300 1400 W AC power supply for EX4300-48MP (power cord needs to be ordered separately) (front-to-back airflow)
JPSU-550-DC-AFO	EX4300 550 W DC power supply (power cord needs to be ordered separately) (front-to-back airflow)
JPSU-550-DC-AFI	EX4300 550 W DC power supply with air flow in (power cord needs to be ordered separately) (back-to-front airflow)
Fans
EX4300-FAN	Spare fan with front-to-back airflow
Supportability Matrix for EX4300 Spare Chassis SKUs (A: supported combination, B: unsupported combination, C: supported as a SKU)
PSU-350-AC-AFO + EX4300-FAN	C (EX4300-48T)
JPSU-715-AC- AFO + EX4300-FAN	B
JPSU-1100-AC-AFO + EX4300-FAN	A
JPSU-1400-AC-AFO + EX4300-FAN	B
JPSU-550-DC-AFO + EX4300-FAN	C (EX4300-48T-DC)
JPSU-350-AC-AFI+ EX4300-FAN-AFI	C (EX4300-48T-AFI)
JPSU-550-DC-AFI + EX4300-FAN-AFI	C (EX4300-48T-DC-AFI)
EX4300-48T-S	Spare chassis, 48-port 10/100/1000BASE-T (optics, power supplies, and fans sold separately)
Pluggable Optics
EX-QSFP-40GE-DAC-50CM	QSFP+ to QSFP+ 40GbE Direct Attach Copper (twinax copper cable) 50 cm passive
QFX-QSFP-40G-SR4	QSFP+ 40GBASE-SR4 40GbE optics, 850 nm for up to 150 m transmission on multimode fiber-optic (MMF)
QFX-QSFP-DAC-1M

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