What is the switching performance and latency?

Delivers 2.56 Tbps throughput and 1.44 Bpps forwarding with sub-microsecond latency in cut-through mode for any packet size including jumbo frames. Supports wire-speed across all ports simultaneously, perfect for low-jitter data center fabrics.

Does it support Layer 3 routing and FCoE?

Yes, handles 128K IPv4 unicast prefixes, 104K multicast routes, OSPF/BGP/IS-IS, VRRP, and 4095 FCoE VLANs/FC fabrics. Enables full L2/L3 convergence for storage and IP traffic in unified fabrics.

What high availability features are included?

Redundant fans and dual AC PSUs, plus GRES, NSR, NSB, BFD, and uplink failure detection. Ensures nonstop operation during upgrades and failures in mission-critical data centers.

What form factor and airflow options?

Compact 2U chassis (3.46x17.36x22.44 in) with back-to-front airflow (AFI) for hot/cold aisle compliance. Management via dual SFP/RJ-45 ports and rear console.

QFX5100-96S-AFI - Juniper QFX5100‑96S‑AFI Switch

Name: QFX5100-96S-AFI - Juniper QFX5100‑96S‑AFI Switch
Brand: Juniper
SKU: QFX5100-96S-AFI
Price: 1185 USD
Availability: InStock

QFX5100-96S-AFI - Juniper QFX5100‑96S‑AFI Switch | US IT Hardware

Product overview

The Juniper Networks QFX5100-96S-AFI is a purpose-built 2U Ethernet switch for data center environments, offering 96 SFP+/SFP ports supporting 1/10GbE (48 copper 1GbE) and 8 QSFP+ ports for 40GbE or 4x10GbE breakout, achieving 2.56 Tbps aggregate throughput and 1.44 Bpps forwarding performance. It operates in cut-through or store-and-forward modes with sub-microsecond latency, enabling wire-speed switching for jumbo frames and low jitter. Key features include extensive Layer 2/3 support (STP/RSTP/MSTP, OSPF/BGP, VRRP), FCoE with 4095 VLANs, 128K IPv4 routes, and advanced QoS with 12 queues per port. High availability via redundant fans, AC PSUs, GRES, NSR, and BFD ensures reliability. Dimensions are 3.46x17.36x22.44 inches with back-to-front airflow for hot/cold aisle deployments. Perfect for spine/leaf, fabric, or top-of-rack roles in cloud, HPC, and enterprise data centers requiring scalable, low-latency 10/40GbE connectivity.

2.56 Tbps aggregate switching throughput.
96 SFP+ ports for 10GbE with 8 QSFP+ uplinks.
Sub-microsecond latency in cut-through mode.
Redundant fans and AC power supplies included.
Supports 128K IPv4 unicast routes and 644 ECMP.
Front-to-back airflow for data center deployment.

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 #	QFX5100-96S-AFI
Brand	Juniper
Condition	Refurbished
Model	QFX5100‑96S‑AFI
Switch Type	High‑Density Managed Switch
Jumbo Frames	Up to 9,216 bytes
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

Best for

Data Center Spine
High-density 10GbE/40GbE spine switching for leaf-spine fabrics with 2.56Tbps non-blocking throughput.
Leaf Aggregation
Top-of-rack aggregation for servers with 96x10GbE ports and sub-μs latency east-west traffic.
Cloud Networking
Scalable fabric deployments supporting EVPN-VXLAN overlays and 128K IPv4 routes.
HPC Clustering
Low-jitter 10/40GbE interconnect for high-performance computing clusters with FCoE support.
Enterprise Core
Layer 3 core routing with OSPF/BGP and QoS for mixed 1/10GbE access-to-aggregation.

Frequently asked questions

What are the port configurations on QFX5100-96S-AFI?

Features 96 SFP+/SFP ports supporting 1GbE/10GbE (48 copper 1GbE) and 8 QSFP+ ports configurable as 40GbE or 4x10GbE via breakout cables, enabling up to 104x10GbE total. Ideal for high-density 10GbE server access with 40GbE uplinks to spine switches.

Details

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Forwarding Rate	1.44 Bpps
Supported Speeds	1GbE, 10GbE, 40GbE
Switching Capacity	2.56 Tbps

Power Supplies	Dual redundant, hot‑swappable AC power supplies

Weight	≈14.74 kg
Form Factor	1U Rack‑mount
Dimensions (HxWxD)	≈3.46 x 17.36 x 22.44 in (8.8 x 44.09 x 57 cm)

Airflow	Back‑to‑Front airflow (AFI)
Cooling	Redundant hot‑swappable fans
Operating Humidity	5% to 95% non‑condensing
Operating Temperature	0°C to 40°C

Interface/Ports

Ports (SFP/SFP+)	96 x 1/10GbE SFP/SFP+
Supported Breakout	Each QSFP+ port supports 4×10GbE breakout
Uplink Ports (QSFP+)	8 x 40GbE QSFP+
Management Interfaces	CLI, SNMP, RJ‑45 serial console, RJ‑45 Gigabit mgmt, SFP Gigabit mgmt, USB

Juniper QFX5100‑96S‑AFI Switch

Product overview

Featuring

Best for

Frequently asked questions

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports