Form factor | Fixed platform |
Virtual Chassis configuration consisting of 10 switches | |
Dimensions (W x H x D) | 17.4 x 1.7 x 16.4 in (44.2 x 4.3 x 41.7 cm) |
1 rack unit | |
Backplane speed | 320 Gbps (Virtual Chassis) |
Data rate | EX4300-24Por EX4300-24T: 448 Gbps |
EX4300-48P or EX4300-48T: 496 Gbps | |
EX4300-32F: 464 Gbps | |
Throughput | EX4300-24P/EX4300-24TF: 333 Mpps (wire speed) |
EX4300-48P/EX4300-48T: 369 Mpps (wire speed) | |
EX4300-32F: 345 Mpps (wire speed) | |
40GBASE quad small form-factor pluggable plus transceiver (QSFP+) port densities | 4 per switch |
Up to 20 in Virtual Chassis configuration (assuming 2 ports per switch are used for forming Virtual Chassis) | |
100GBASE C form-factor pluggable transceiver (CFP) port densities | N/A |
Resiliency | Internal, hot-swappable redundant power supply; field-replaceable fans; graceful Routing Engine switchover (GRES) in Virtual Chassis configuration |
Operating system | Junos OS |
Traffic monitoring | sFlow |
Quality-of-service (QoS) queues/port | 12 |
MAC addresses | 64,000 |
Jumbo frames | 9216 bytes |
IPv4 unicast/multicast routes | 32,000/8000 |
IPv6 unicast/multicast routes | 18,000/4000 |
Number of VLANs | 4093 |
ARP entries | 64,000 |
Model: | Juniper EX4300-24T |
Physical Specifications Switch Juniper EX4300-24T | |
Backplane | 320 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device |
Uplink Module Options | 4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics |
Dimensions (W x H x D) | 17.41 x 1.72 x 16.43 in (44.21 x 4.32 x 41.73 cm) |
Desktop installation width noted above, rack-mount width is 17.5 in (44.5 cm) | |
Height: 1 rack unit (1 U) | |
Weight | Juniper EX4300-24T switch (no power supply or fan module): 13 lb (5.9 kg) |
Switch EX4300-24T (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) | |
SFP+ uplink module: 0.44 lb (0.2 kg) | |
Fan module: 0.33 lb (0.15 kg) | |
Rack mountable | 1 Rack Unit |
Hardware Specifications Juniper EX4300 | |
Switching Engine Model | Store and forward |
DRAM | 2 GB with Error Correcting Code (ECC) |
Flash | 2 GB |
CPU | 1.5 GHz Dual-Core PowerPC CPU |
GbE port density per system | 32 (24 host ports + four 40GbE ports + optional fourport 1/10GbE uplink module) |
10GbE port density per system | 4 (uplink module) |
40GbE port density per system | 4 |
Packet Switching Capacities | 448 Gbps |
Layer 2 Throughput (Mpps) | 333 Mpps (wire speed) |
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 (singlemode), LRM (multimode), and DAC (direct-attach copper) | |
40 GbE QSFP+ optic/connector type: 40GbE QSFP+ LC connector type, SR (multimode), 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 only (all ports) | |
Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports: 24P/24T and 48P/48T only, on all ports | |
Digital optical monitoring for optical ports | |
Power Options | |
Power Supply Rating | 350 W AC dual load-sharing hot-swappable internal redundant power supplies |
PoE Budget | 0 W |
Maximum Current Inrush | 50 amps |
Minimum number of PSUs required for fully loaded chassis | 1 per switch |
Model: | Juniper EX4300-48T |
Physical Specifications | |
Backplane | 320 Gbps Virtual Chassis interconnect to combine up to 10 units as a single logical device |
Uplink Module Options | 4-port dual-mode 10GbE/1GbE module with pluggable SFP+/SFP optics |
Dimensions (W x H x D) | 17.41 x 1.72 x 16.43 in (44.21 x 4.32 x 41.73 cm) |
Desktop installation width noted above, rack-mount width is 17.5 in (44.5 cm) | |
Height: 1 rack unit (1 U) | |
Weight | Juniper EX4300-48T switch (no power supply or fan module): 13 lb (5.9 kg) |
EX4300-48T 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) | |
SFP+ uplink module: 0.44 lb (0.2 kg) | |
Fan module: 0.33 lb (0.15 kg) | |
Rack mountable | 1 Rack Unit |
Hardware Specifications | |
Switching Engine Model | Store and forward |
DRAM | 2 GB with Error Correcting Code (ECC) |
Flash | 2 GB |
CPU | 1.5 GHz Dual-Core PowerPC CPU |
GbE port density per system | 56 (48 host ports + four 40GbE ports + optional fourport 1/10GbE uplink module) |
10GbE port density per system | 4 (uplink module) |
40GbE port density per system | 4 |
Packet Switching Capacities | 496 Gbps |
Layer 2 Throughput (Mpps) | 369 Mpps (wire speed) |
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 (singlemode), LRM (multimode), and DAC (direct-attach copper) | |
40 GbE QSFP+ optic/connector type: 40GbE QSFP+ LC connector type, SR (multimode), 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 only (all ports) | |
Port speed downshift/setting maximum advertised speed on 10/100/1000BASE-T ports: 24P/24T and 48P/48T only, on all ports | |
Digital optical monitoring for optical ports | |
Nguồn Power Options | |
Power Supply Rating | 350 W AC dual load-sharing hot-swappable internal redundant power supplies |
PoE Budget | Không có |
Maximum Current Inrush | 50 amps |
Minimum number of PSUs required for fully loaded chassis | 1 per switch |