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QFX5120-48Y-AFI2

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The QFX5120 Switch delivers low latency, rich Layer 2 and Layer 3 features, and advanced EVPN- VXLAN capabilities, making it an ideal data center top-of-rack and aggregation switch for enterprise multicloud deployments.

Featuring Layer 3 gateway capabilities for routing between virtualized and bare-metal servers, the QFX5120 is designed for extremely agile data centers that require support for overlay/ underlay network architectures. Native 25GbE with 100GbE uplink ports on the QFX5120-48Y, combined with 32 ports of 100GbE on the QFX5120-32C, make the QFX5120 family ideal for leaf-and-spine network deployments.

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SKU: QFX5120-48Y-AFI2

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Description

The QFX5120 Switch delivers low latency, rich Layer 2 and Layer 3 features, and advanced EVPN- VXLAN capabilities, making it an ideal data center top-of-rack and aggregation switch for enterprise multicloud deployments.

Specification

 

Switch Type / Role Data Center Leaf / Campus Distribution Switch
Downlink Ports 48 × 25 GbE (SFP28) / 10 GbE (SFP+) / 1 GbE (SFP)
Uplink Ports 8 × 100 GbE (QSFP28) / 40 GbE (QSFP+)
Throughput (Fabric Capacity) Up to 2 Tbps (unidirectional) / 4 Tbps (bidirectional)
Latency As low as ≈ 800 ns
CPU / Memory / Storage 2.2 GHz quad-core Intel CPU, 16 GB RAM, 50 GB SSD
Breakout Capability 100G → 4×25G, 40G → 4×10G
Switching Modes Cut-through and Store-and-Forward
Forwarding / Tables 291K MAC addresses, up to 351K L3 prefixes
Buffer Memory 32 MB shared buffer (configurable)
Software & Protocols Junos OS, EVPN-VXLAN, MPLS, L3 VPN, Automation (Python, ZTP)
Virtual Chassis Supported (multiple switches act as one)
Power Consumption Max ≈ 283 W, Typical ≈ 155 W
Dimensions (H × W × D) 1.72 × 17.36 × 20.48 in (4.37 × 44.09 × 52.02 cm)
Weight ≈ 10.75 kg (23.7 lb)
Cooling / Airflow Redundant AC PSUs, front-to-back or back-to-front airflow