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Description

Backplane	320 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device
Uplink Module Options	EX4300-32F/EX4300-32F-DC: 8-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics EX4300-32F/EX4300-32F-DC: 2-port dual-mode 40GbE module with pluggable QSFP+ optics EX4300-48MP: 4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics or 2-port QSFP+/1-port QSFP28 module Others: 4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics
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
Dimensions (W x H x D)	EX4300-24P, -24T, -48P, -48T: 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) EX4300-32F: Base unit: 17.36 x 1.72 x 17.87 in (44.1 x 4.37 x 45.4 cm) With power supply installed: 17.36 x 1.72 x 19 in (44.1 x 4.37 x 48.28 cm) With power supply and front module installed: 17.36 x 1.72 x 19.31 in (44.1 x 4.37 x 49.1 cm) EX4300-48MP: Base unit: 17.36 x 1.72 x 18.39 in (44.1 x 4.37 x 46.7 cm) With power supply installed: 17.36 x 1.72 x 19.63 in (44.1 x 4.37 x 49.99 cm) With power supply and front module installed: 17.36 x 1.72 x 20.06 in (44.1 x 4.37 x 50.96 cm)
System 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)
Environmental Ranges	Operating temperature: AFO models: 32° to 113° F (0° to 45° C) AFI models: 32° to 95° F (0° to 35° C) Storage temperature: -40° to 158° F (-40° to 70° C) Operating altitude: up to 10,000 ft (3,049 m) Non-operating altitude: up to 16,000 ft (4,877 m) Relative humidity operating: 10% to 85% (noncondensing) Relative humidity non-operating: 0% to 95% (noncondensing)
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
Hardware Specifications	Switching Engine Mode: Store and forward Memory: DRAM: 8 GB with Error Correcting Code (ECC) on EX4300-48MP, 3 GB with ECC on EX4300-32F and EX4300-32F-DC; 2 GB with ECC on all other EX4300 switches Storage: 50 GB on EX4300-48MP, 4 GB on EX4300-32F and EX4300-32F-DC; 2 GB on all other EX4300 switches
CPU	EX4300-48MP: 2.2 GHz Dual-Core Intel Broadwell CPU Other EX4300s: 1.5 GHz Dual-Core PowerPC CPU
GbE Port Density per System	24P/24T: 32 (24 host ports + four 40GbE ports + optional four-port 1/10GbE uplink module) 32F: 46 (32 host ports + four 10GbE ports + two 40GbE ports + optional eight-port 1/10GbE uplink module or two-port 40GbE uplink module) 48P/48T/48MP: 56 (48 host ports + four 40GbE ports + optional four-port 1/10GbE uplink module)
10GbE port density per system	32F: 4 (fixed) + 8 (uplink module) 48MP: 24 (fixed) = 4 (uplink module) All others: 4 (uplink module)
40GbE port density per system	32F: 2 (fixed) + 2 (uplink module) 48MP: 4 (fixed) + 2 (uplink module) All others: 4 (fixed)
100GbE port density per system	48MP: 2 (uplink module)
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)
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 (Maximum with 64 Byte Packets)	24P/24T: 224 Gbps (unidirectional)/448 Gbps (bidirectional) 48P/48T: 248 Gbps (unidirectional)/496 Gbps (bidirectional) 48MP: 464 Gbps (unidirectional)/928 Gbps (bidirectional) 32F: 232 Gbps (unidirectional)/464 Gbps (bidirectional)
Software Specifications	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)
Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets)	EX4300-24P/24T: 333 Mpps (wire speed) EX4300-48P/48T: 369 Mpps (wire speed) EX4300-48MP: 714 Mpps EX4300-32F: 345 Mpps (wire speed)
Layer 2 Switching	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
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
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
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)
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	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
Management and Analytics Platforms	Juniper Mist Wired Assurance for Campus Junos Space®Network Director for Campus Junos Space® Management
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
Supported RFCs	RFC 768 UDP RFC 783 TFTP RFC 791 IP RFC 792 ICMP RFC 793 TCP RFC 826 ARP RFC 854 Telnet client and server RFC 894 IP over Ethernet RFC 903 RARP RFC 906 TFTP Bootstrap RFC 951, 1542 BootP RFC 1027 Proxy ARP RFC 1058 RIP v1 RFC 1112 IGMP v1 RFC 1122 Host Requirements RFC 1195 Use of OSI IS-IS for Routing in TCP/IP and Dual Environments (TCP/IP transport only) RFC 1256 IPv4 ICMP Router Discovery (IRDP) RFC 1492 TACACS+RFC 1519 CIDR RFC 1587 OSPF NSSA Option RFC 1591 DNS RFC 1812 Requirements for IP Version 4 Routers RFC 1981 Path MTU Discovery for IPv6 RFC 2030 SNTP, Simple Network Time Protocol RFC 2068 HTTP server RFC 2080 RIPng for IPv6 RFC 2131 BOOTP/DHCP relay agent and DHCP server RFC 2138 RADIUS Authentication RFC 2139 RADIUS Accounting RFC 2154 OSPF w/Digital Signatures (password, MD-5) RFC 2236 IGMP v2 RFC 2267 Network Ingress Filtering RFC 2328 OSPF v2 (edge-mode) RFC 2338 VRRP RFC 2362 PIM-SM (edge-mode) RFC 2370 OSPF Opaque LSA Option RFC 2453 RIP v2 RFC 2460 Internet Protocol, Version 6 (IPv6) Specification RFC 2461 Neighbor Discovery for IP Version 6 (IPv6) RFC 2463 Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification RFC 2464 Transmission of IPv6 Packets over Ethernet Networks RFC 2474 DiffServ Precedence, including 12 queues/port RFC 2475 DiffServ Core and Edge Router Functions RFC 2526 Reserved IPv6 Subnet Anycast Addresses RFC 2597 DiffServ Assured Forwarding (AF) RFC 2598 DiffServ Expedited Forwarding (EF) RFC 2740 OSPF for IPv6 RFC 2925 MIB for Remote Ping, Trace RFC 3176 sFlow RFC 3376 IGMP v3 RFC 3484 Default Address Selection for Internet Protocol Version 6 (IPv6) RFC 3513 Internet Protocol Version 6 (IPv6) Addressing Architecture RFC 3569 draft-ietf-ssm-arch-06.txt PIM-SSM PIM Source Specific Multicast RFC 3579 RADIUS EAP support for 802.1x RFC 3618 Multicast Source Discovery Protocol (MSDP) RFC 3623 OSPF Graceful Restart RFC 4213 Basic Transition Mechanisms for IPv6 Hosts and Routers RFC 4291 IPv6 Addressing Architecture RFC 4443 ICMPv6 for the IPv6 Specification RFC 4541 IBMP and MLD snooping services RFC 4552 OSPFv3 Authentication RFC 4861 Neighbor Discovery for IPv6 RFC 4862 IPv6 Stateless Address Autoconfiguration RFC 4915 MT-OSPF RFC 5095 Deprecation of Type 0 Routing Headers RFC 5176 Dynamic Authorization Extensions to RADIUS RFC 5798 VRRPv3 for IPv6 Draft-ietf-bfd-base-05.txt Bidirectional Forwarding Detection Draft-ietf-idr-restart-10.txt Graceful Restart Mechanism Draft-ietf-isis-restart-02 Restart Signaling for IS-IS Draft-ietf-isis-wg-multi-topology-11 Multi Topology (MT) Routing in IS-IS for BGP Internet draft-ietf-isis-ipv6-06.txt, Routing IPv6 with IS-IS LLDP Media Endpoint Discovery (LLDP-MED), ANSI/TIA-1057, draft 08 PIM-DM Draft IETF PIM Dense Mode draft-ietf-idmr-pim-dm-05.txt, draft-ietf-pim-dm-new-v2-04.txt
Supported MIBs	RFC 1155 SMI RFC 1157 SNMPv1 RFC 1212, RFC 1213, RFC 1215 MIB-II, Ethernet-Like MIB and TRAPs RFC 1493 Bridge MIB RFC 1643 Ethernet MIB RFC 1657 BGP-4 MIB RFC 1724 RIPv2 MIB RFC 1850 OSPFv2 MIB RFC 1905 RFC 1907 SNMP v2c, SMIv2 and Revised MIB-II RFC 2011 SNMPv2 for Internet Protocol using SMIv2 RFC 2012 SNMPv2 for transmission control protocol using SMIv2 RFC 2013 SNMPv2 for user datagram protocol suing SMIv2 RFC 2096 IPv4 Forwarding Table MIB RFC 2287 System Application Packages MIB RFC 2570–2575 SNMPv3, user based security, encryption, and authentication RFC 2576 Coexistence between SNMP Version 1, Version 2, and Version 3 RFC 2578 SNMP Structure of Management Information MIB RFC 2579 SNMP Textual Conventions for SMIv2 RFC 2665 Ethernet-like interface MIB RFC 2787 VRRP MIB RFC 2819 RMON MIB RFC 2863 Interface Group MIB RFC 2863 Interface MIB RFC 2922 LLDP MIB RFC 2925 Ping/Traceroute MIB RFC 2932 IPv4 Multicast MIB RFC 3413 SNMP Application MIB RFC 3414 User-based Security model for SNMPv3 RFC 3415 View-based Access Control Model for SNMP RFC 3621 PoE-MIB (PoE switches only) RFC 4188 STP and Extensions MIB RFC 4363 Definitions of Managed Objects for Bridges with Traffic Classes, Multicast Filtering, and VLAN extensions RFC 5643 OSPF v3 MIB support Draft – blumenthal – aes – usm - 08 Draft – reeder - snmpv3 – usm - 3desede -00 Draft-ietf-bfd-mib-02.txt Draft-ietf-idmr-igmp-mib-13 Draft-ietf-idmr-pim-mib-09 Draft-ietf-idr-bgp4-mibv2-02.txt – Enhanced BGP-4 MIB Draft-ietf-isis-wg-mib-07

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