Juniper EX4300-48MP

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EX4300-48MP

Hardware Specifications

Switching Engine Model

Store and forward

DRAM

 8 GB with Error Correcting Code (ECC)

Flash

64 GB

CPU

 2.2 GHz Dual-Core Intel Broadwell CPU

GbE port density per system

56 (48 host ports + four 40GbE ports + optional four-port 1/10GbE uplink module)

Physical Layer

• Time domain reflectometry (TDR) for detecting cable breaks and shorts
• Auto medium-dependent interface/medium-dependent interface crossover (MDI/MDIX) support
• Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports
• Digital optical monitoring for optical ports

Physical Layer

• Time Domain Reflectometry (TDR) for detecting cable breaks and shorts: 24P/24T and 48P/48T only 
• Auto MDI/MDIX support: 24P/24T and 48P/48T only (all ports) 
• Port speed downshift/setting max advertised speed on 10/100/1000BASE-T ports: 24P/24T and 48P/48T only, on all ports 
• Digital optical monitoring for optical ports

Packet-Switching Capacities (Maximum with 64-Byte Packets)

960 Gbps

Software Specifications

Layer 2/Layer 3 Throughput (Mpps) (Maximum with 64 Byte Packets)

714 Mpps

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)

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

Multicast

• IGMP: v1, v2, v3 
• IGMP snooping 
• Multicast Listener Discovery (MLD) snooping 
• PIM-SM, PIM-SSM, PIM-DM