Name: QFX5120-48Y-AFI2 Juniper 48 SFP28 25GBase-X 8 QSFP28 Data Center Switch
Brand: Juniper Networks
SKU: QFX5120-48Y-AFI2
Price: 15542.40 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The QFX5120-48Y-AFI2 offers a balanced combination of 25G and 100G port interfaces designed for flexible, high-capacity network environments. It fits well within data centers and enterprise network backbones, providing robust connectivity options and consistent network performance without unnecessary complexity.

General Information
Brand	Juniper Networks
Condition	Refurbished

Technical Information
Switch Type	Layer 2, Layer 3, Managed Switch, Stackable Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	No
Number of Ports	48-Ports
Port Type	25G SFP28, 100G QSFP28, USB Console, Serial Console (RJ-45)
Port Speed	25Gbps,100Gbps
UpLink Ports	8
POE Support	No
VLAN Support	Yes
Max VLANs Supported	4096
Stackable	Yes
Layer Support	Layer 2, Layer 3
Connector Type	SFP28,QSFP28,Serial Console (RJ-45),USB Console

Performance
Jumbo Frame Support	Up To 9216 Bytes

Management and Configuration
Routing Protocols	Static, RIP, OSPF, OSPFv3, BGP, IS-IS, VRRP, PIM-SM, IGMP, Policy-Based Routing (PBR)
Remote Protocols	Yes
Management Interfaces	CLI (Junos),SSH,Serial Console (RJ-45),USB Console,SNMP,NETCONF,RESTCONF
Security Features	ACLs,802.1X,Port security,DHCP snooping,MAC limiting
Management Type	In-band and Out-of-band
Remote Management Protocol	SSH,SNMP,NETCONF,RESTCONF,HTTP/HTTPS

Power & Cooling
Fans	Yes (front-to-rear, hot-swappable)

Physical Characteristics
Weight	3.00
Operating Temperature	0°C to 40°C

Miscellaneous
Assembly Required	No
Compliance Standards	RoHS, CE, FCC

Product Description
The QFX5120-48Y-AFI2 is built to deliver high-performance switching with a focus on scalable data center and enterprise deployments. It commonly appears in modern network fabric architectures where both aggregation and top-of-rack roles demand versatile 25G and 100G port support. Networking professionals and system architects often rely on this switch due to its combination of port density and advanced software capabilities. Key Features Supports a mix of 25G SFP28 and 100G QSFP28 ports for flexible connectivity options Offers low latency and high throughput suited for demanding data center traffic Integrates Juniper's operating system for robust routing and switching protocols Provides comprehensive security and automation features to streamline operations Optimized for high availability with redundant power supplies and fans This switch plays a critical role in maintaining network integrity and performance in environments requiring substantial data processing and transfer rates. Its reliability and consistent performance keep complex infrastructures running smoothly without compromise.

Use Cases
This switch is generally deployed in data center networks where high-density 25G access and uplinks are needed. It benefits organizations managing large virtualized workloads or edge computing setups by offering adaptable port configurations and reliable throughput. How It's Used: Top-of-rack switch for leaf-spine data center architectures handling 25GbE server connections Aggregation layer device aggregating 25G and 100G traffic from multiple access switches Infrastructure component in enterprise core networks supporting mixed-speed uplinks Switch platform for virtualization environments requiring low latency and high bandwidth Edge computing hub connecting distributed workloads with high throughput demands By supporting diverse networking scenarios, the QFX5120-48Y-AFI2 helps maintain scalable, resilient, and efficient network operations across various organizational requirements. Its design balances performance and flexibility, making it a practical choice for evolving network demands.