What is the switching performance of this switch?

Delivers 2.56 Tbps full-duplex switching capacity and 1.44 Bpps forwarding rate. Non-blocking architecture supports wire-speed across all ports in cut-through mode, ideal for high-throughput east-west traffic in spine/leaf fabrics.

What Layer 3 scaling does it provide?

Supports 128,000 IPv4 unicast prefixes, 208,000 host routes, 64 ECMP paths, 104,000 IPv4 multicast routes, and 64,000 IPv6 unicast prefixes. Enables large-scale routing in virtualized cloud environments.

What power and airflow options are available?

161W power consumption with dual redundant AC power supplies. Back-to-front airflow (3AFI) and hot-pluggable redundant fans ensure high availability in standard data center hot/cold aisle configurations.

QFX5100-24Q-3AFI - Juniper QFX5100‑24Q‑3AFI Switch

Name: QFX5100-24Q-3AFI - Juniper QFX5100‑24Q‑3AFI Switch
Brand: Juniper
SKU: QFX5100-24Q-3AFI
Price: 675 USD
Availability: InStock

QFX5100-24Q-3AFI - Juniper QFX5100‑24Q‑3AFI Switch | US IT Hardware

Product overview

The Juniper Networks QFX5100-24Q-3AFI is a high-performance 1RU Ethernet switch designed for data center access and aggregation. It features 24 QSFP+ ports supporting 40GbE natively or 4x10GbE via breakout cables, with optional expansion to 32 QSFP+ ports using two QFX-EM-4Q modules. Offering 2.56 Tbps switching capacity and 1.44 Bpps forwarding rate, it ensures wire-speed performance with cut-through and store-and-forward modes. Rich Layer 2/3 capabilities include 128,000 IPv4 unicast routes, 104,000 IPv4 multicast routes, 4,000 firewall filters, and support for STP, MSTP, LACP, and LLDP. Dual redundant AC power supplies and hot-pluggable fans with back-to-front airflow enable high availability in hot/cold aisle deployments. Management via dual SFP/RJ-45 ports simplifies operations. Ideal for spine/leaf architectures, cloud networking, and high-performance computing requiring low-latency east-west traffic.

2.56 Tbps full-duplex switching capacity.
24 QSFP+ ports scalable to 32 with expansion.
1.44 Bpps forwarding rate across all ports.
Supports 40GbE native or 4x10GbE breakout.
128,000 IPv4 unicast routes with 64 ECMP paths.
Back-to-front airflow with redundant power/fans.

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 #	QFX5100-24Q-3AFI
Brand	Juniper
Condition	Refurbished
Model	QFX5100‑24Q‑3AFI
Switch Type	Managed High‑Performance Switch
Product Line	Juniper QFX5100 Series
Product Type	Layer 2/Layer 3 Ethernet Switch
Switch Layer	Layer 2 / Layer 3
Operating System	Junos OS
MAC Address Table	≈288,000 entries
Jumbo Frame Support	Up to 9,216 bytes

Best for

Data Center Top-of-Rack
High-density 40GbE access for server connectivity with low-latency forwarding.
Spine/Leaf Architecture
Scalable aggregation in Clos fabrics supporting 2.56Tbps non-blocking throughput.
Cloud Networking
Layer 2/3 features for virtualized environments with rich VLAN and multicast support.
High-Performance Computing
Wire-speed 40GbE for HPC clusters requiring 1.44 Bpps forwarding performance.
Enterprise Aggregation
40GbE uplinks from access switches with redundant power and airflow options.
Storage Networking
FCoE support with 4,095 VLANs/FC fabrics for unified storage fabrics.

Frequently asked questions

What port configuration does the QFX5100-24Q-3AFI support?

Details

Shipping, warranty & returns

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Forwarding Rate	1.44 Bpps
Supported Speeds	10GbE (with breakout), 40GbE
Switching Capacity	2.56 Tbps

Power Supplies	Dual redundant, hot‑swappable AC power supplies

Weight	≈9.8 kg
Form Factor	1U Rack‑mount
Dimensions (HxWxD)	≈1.72 x 17.36 x 20.48 in (4.37 x 44.09 x 52.02 cm)

Airflow	Back‑to‑Front (AFI)
Cooling	Redundant hot‑swappable fan modules
Operating Humidity	5% to 90% non‑condensing
Operating Temperature	0°C to 40°C

Interface/Ports

Ports (QSFP+)	24 x 40GbE QSFP+
Expansion Slots	2 x expansion module slots
Management Ports	1 x RJ‑45 serial console, 1 x RJ‑45 Gigabit management, 1 x SFP management, 1 x USB
Supported Breakout	Each QSFP+ supports breakout to 4 x 10GbE

Juniper QFX5100‑24Q‑3AFI Switch

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports