What are the port configurations available on the QFX3500-48S4Q?

The switch features 48 SFP+ ports and 4 QSFP+ ports. Of the 48 SFP+ ports, 36 are dual-mode supporting 10GbE or 1GbE (up to 18 copper 1GbE), and 12 support 10GbE or 2/4/8 Gbps Fibre Channel. Each QSFP+ port configures as 4x10GbE or 40GbE, providing flexible deployment options for diverse data center environments.

What is the maximum throughput and switching capacity?

The QFX3500-48S4Q delivers 1.28 Tbps of throughput and 960 Mpps switching capacity, enabling wire-speed switching across all ports simultaneously. This performance supports ultra-low latency and minimal jitter, essential for demanding data center workloads including high-frequency trading and real-time analytics.

Does the switch support redundancy and high availability?

Yes. The QFX3500-48S4Q includes dual redundant hot-pluggable power supplies and redundant hot-pluggable fan modules. It supports Virtual Chassis, MC-LAG, and QFabric deployments for fabric-ready edge solutions, ensuring continuous operation and seamless failover in mission-critical environments.

What convergence capabilities does this switch offer?

The QFX3500-48S4Q supports standards-based Fibre Channel I/O and iSCSI convergence, consolidating storage and data traffic on a single platform. It supports up to 4,095 FCoE VLANs and 12 virtual gateways, enabling efficient network consolidation for converged storage deployments.

What is the physical form factor and power consumption?

The switch is a compact 1U rack-mountable device weighing 30.75 lb (13.95 kg) with dual power supplies and fan modules. It supports front-to-back or back-to-front airflow for flexible hot aisle/cold aisle deployment in data center environments.

How many VLANs and link aggregation groups does it support?

The QFX3500-48S4Q supports 4,095 active VLANs and 63 link aggregation groups with up to 32 ports per LAG. It also supports 16,000 IPv4 prefixes, 8,000 host routes, and 1,500 firewall filters for comprehensive network segmentation and traffic management.

Is this switch compatible with other Juniper switches?

Yes. The QFX3500-48S4Q can be deployed with Juniper QFX3600, EX4300, and QFX5100 switches in the same Virtual Chassis and Virtual Chassis Fabric configuration, enabling flexible multi-tier network architectures and investment protection.

QFX3500-48S4Q - Juniper QFX3500-48S4Q 1.28 Tbps Layer 2/3 Switch

Name: Juniper QFX3500-48S4Q 1.28 Tbps Layer 2/3 Switch
Brand: Juniper
SKU: QFX3500-48S4Q
Price: 685 USD
Availability: InStock

QFX3500-48S4Q - Juniper QFX3500-48S4Q 1.28 Tbps Layer 2/3 Switch | US IT Hardware

Product overview

The Juniper Networks QFX3500-48S4Q is a high-performance Layer 2/3 data center switch designed for demanding enterprise and cloud environments. Featuring 48 dual-mode SFP+/SFP ports and four QSFP+ ports in a compact 1U form factor, it delivers 1.28 Tbps throughput and 960 Mpps switching capacity with ultra-low latency. The switch supports flexible port configurations: 36 ports operate in 10GbE or 1GbE mode (up to 18 copper 1GbE), 12 ports support 10GbE or 2/4/8 Gbps Fibre Channel, and each QSFP+ port configures as 4x10GbE or 40GbE. Dual redundant power supplies and hot-pluggable fan modules ensure high availability. The QFX3500-48S4Q supports Virtual Chassis, MC-LAG, and QFabric architecture deployments, making it ideal for top-of-rack installations in virtualized data centers, high-performance computing, and converged storage environments.

1.28 Tbps throughput with 960 Mpps switching capacity
48 dual-mode SFP+ ports (10GbE/1GbE/FC) + 4 QSFP+ ports
1U form factor with dual redundant power supplies
63 LAGs, 16,000 IPv4 routes, 4,095 VLANs support
FCoE/iSCSI convergence with 9,216-byte jumbo frames
Virtual Chassis and QFabric architecture compatible

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	QFX3500-48S4Q
Brand	Juniper
Condition	Refurbished
Model	QFX3500-48S4Q
Jumbo Frame	9,216 bytes
Status LEDs	System status indicators
Product Line	QFX Series
Product Type	Data Center Ethernet Switch
Switching Mode	Cut-through and store-and-forward
Multicast Groups	3,500
IPv4 Unicast Routes	12,000 prefixes; 8,000 host routes

Compatible systems

No specific compatibility lists found in sources

Best for

Data Center Aggregation
Top-of-rack deployment for aggregating high-performance servers with 1.28 Tbps throughput and 960 Mpps switching capacity, supporting wire-speed switching with ultra-low latency and jitter.
Cloud Computing
Virtualized data center environments leveraging Virtual Chassis and QFabric architecture support for fabric-ready edge solutions with investment protection through 40GbE-capable QSFP+ ports.
High-Performance Computing
HPC clusters requiring 48 dual-mode ports supporting 10GbE/1GbE and Fibre Channel convergence, with 12 ports dedicated to 2/4/8 Gbps FC modes for storage I/O consolidation.
Converged Storage Networks
iSCSI and NAS deployments with standards-based Fibre Channel I/O convergence capabilities, supporting up to 3,500 multicast groups and 9,216-byte jumbo frames for storage optimization.
Enterprise Network Consolidation
Multi-tier network migration with support for 63 link aggregation groups (up to 32 ports per LAG), 16,000 IPv4 prefixes, and 1,500 firewall filters for comprehensive traffic management.

Frequently asked questions

Details

Shipping, warranty & returns

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Switching Capacity	1.28 Tbps; 960 Mpps

Firewall Filters	1,500

Power Supplies	Dual redundant power supplies

Physical Characteristics

Weight	30.75 lb (13.95 kg) with dual power supplies and fan modules
Form Factor	1U rack-mountable
Chassis Type	Rear port connections
Mounting Type	Rack mount with front-to-back or back-to-front airflow

Interface/Ports

Network Ports	48 dual-mode SFP+/SFP ports: 36 ports 10GbE/1GbE (up to 18 copper 1GbE); 12 ports 10GbE/2/4/8 Gbps Fibre Channel; 4 QSFP+ ports (each 4x10GbE or 40GbE)
Management Ports	Dual management ports (copper and fiber); Console port; USB port
Management Interface	Dual management ports; USB; Console

Juniper QFX3500-48S4Q 1.28 Tbps Layer 2/3 Switch