Name: QFX5120-48YM-AFO Juniper 48-Port 25G SFP28 8-Port 100G QSFP28 Switch
Brand: Juniper Networks
SKU: QFX5120-48YM-AFO
Price: 7726.27 USD
Availability: InStock
Rating: 4.8 (118 reviews)

Product Overview
The QFX5120-48YM-AFO combines a high port count of 25G SFP28 interfaces with flexible 100G QSFP28 uplinks, fitting well in data center leaf and spine layers. It supports essential network protocols and delivers the low latency required to handle modern application traffic efficiently. The switch's form factor and performance profile make it a straightforward solution for scaling network infrastructure while maintaining consistent connectivity.

General Information
Brand	Juniper Networks
Condition	Refurbished

Technical Information
Switch Type	Layer 3, Managed Switch, Stackable Switch
Form Factor	Rack-Mountable
Mount Type	1U Rack
Switch Ports	48
Number of Ports	56-Ports
Port Type	25G SFP28, 100G QSFP28, USB Console, Serial Console (RJ-45)
Port Speed	25Gbps,100Gbps
UpLink Ports	8
POE Support	No
Switching Capacity	4 Tbps (full duplex)
Switch Forwarding Rate	5.95 Mpps
VLAN Support	Yes
Max VLANs Supported	1-4094
Stackable	Yes
Layer Support	Layer 3
Connector Type	SFP28,QSFP28,USB Console,Serial Console (RJ-45)

Performance
Jumbo Frame Support	Up To 9216 Bytes

Management and Configuration
Routing Protocols	Static, OSPF
Remote Protocols	Yes
Management Interfaces	Console (RJ-45), USB Console, Out-of-band 1x 10/100/1000 RJ-45, In-band management
Security Features	802.1X, ACLs, DHCP snooping, ARP inspection, MAC limiting, RADIUS, TACACS+
Management Type	Junos OS, CLI, SNMP, NETCONF, RESTCONF
Security	802.1X, RADIUS, TACACS+
Remote Management Protocol	SSH, SNMPv2/v3, NETCONF, RESTCONF, Telnet (optional)

Power & Cooling
Fans	Redundant field-replaceable fans
Power	AC 100-240V, 50-60 Hz

Physical Characteristics
Weight	3.00
Operating Temperature	0 to 40 C (32 to 104 F)

Miscellaneous
Assembly Required	No
Compliance Standards	RoHS, CE, FCC, UL, cULus
Compliant Standards	IEEE 802.3, IEEE 802.1Q, IEEE 802.1p, IEEE 802.3ad (LACP)

Product Description
The QFX5120-48YM-AFO is a high-performance switch built for data center and enterprise network environments requiring robust 25G and 100G connectivity. It is commonly found in network fabrics where scalability and low latency are critical. Networking professionals and infrastructure teams often rely on it for its balance of port density and throughput. Key Features Delivers 48 ports with 25G SFP28 interfaces for flexible network expansion Equipped with 8 QSFP28 ports capable of 40G and 100G speeds Supports advanced Layer 2 and Layer 3 features for efficient traffic management Offers low latency switching with optimized buffering for demanding workloads Integrates with Juniper's network operating system for streamlined management This switch serves a vital role in consolidating network infrastructure, providing reliable throughput and consistent performance across large-scale environments. Its design focuses on maintaining operational stability while accommodating high-speed data flows without compromise.

Use Cases
The QFX5120-48YM-AFO is typically deployed in data centers and high-performance computing clusters where space and speed are paramount. Organizations focusing on virtualization, cloud services, and large-scale storage environments benefit from its capabilities. It is suited for network administrators aiming to optimize traffic flow and scalability without adding complexity. How It's Used: Leaf switch in spine-leaf network architectures within enterprise data centers Aggregation switch for connecting servers using 25G and 100G links in cloud environments High-density switching in colocation facilities requiring reliable throughput Supporting virtualized workloads by providing low-latency communication paths Enabling high-bandwidth storage networks with consistent performance By supporting multiple high-speed connection types in a compact chassis, this switch helps maintain smooth network operations and efficient resource utilization. It offers the scalability and responsiveness necessary for evolving data center demands.