Góc tư vấn Juniper

Thông số kỹ thuật và tính năng chính của Juniper EX4300 Switch

14/09/2019

Tính năng chính của Juniper EX4300 Switch

Field-Proven Juniper Technology
Wire-Speed Performance
Eight QoS Queues
Innovative Switch Design
Virtual Chassis
Near Line-Rate Encryption

Thông số kỹ thuật của Juniper EX4300 series

Form factor	Fixed platform
Form factor	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)
Dimensions (W x H x D)	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

Cấu hình Switch Juniper EX4300 hay được lựa chọn?

Juniper EX4300 24 port

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

Juniper EX4300 48 ports

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

Ngoài ra, bạn cũng có thể tìm và lựa chọn Juniper EX 4300 mã Switch Juniper EX 4300 24 port hoặc 48 port có chức năng cấp nguồn POE cho hệ thống hạ tầng của mình.

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