Product
QFX5120 Switch
The QFX5120 Switch supports 1GbE, 10GbE, 25GbE, 40GbE, and 100GbE interfaces, including models with 1GbE/10GbE copper options, for data center, data center interconnect, and campus deployments. The QFX5120 is packed with software features that support modern EVPN-VXLAN fabric architectures.
Manage your data center QFX5120 Switch deployment with turnkey Juniper Apstra software, which automates the entire network lifecycle to simplify design, deployment, and operations and provides closed-loop assurance. Deploy and manage your campus fabric from the Juniper Mist cloud to streamline operations and improve visibility.
Key Features
Use Case: Data Center Fabric Leaf/Spine, Campus Distribution/Core, applications requiring MACsec
Port Density:
- QFX5120-48T: 48 x 1/10GbE RJ-45 and 6 x 40/100GbE QSFP+/QSFP28
- QFX5120-48Y: 48 x 1/10/25GbE SFP/SFP+ and 8 x 40/100GbE QSFP+/QSFP28
- QFX5120-48YM: 48 x 1/10/25GbE SFP/SFP+ and 8 x 40/100GbE QSFP+/QSFP28
- QFX5120-32C: 32 x 40/100GbE QSFP+/QSFP28 and 2 x 10GbE SFP+
Throughput: Up to 2.16/4/6.4 Tbps (bidirectional)
MACsec: AES-256 encryption on all ports (QFX5120-48YM)
Features + Benefits
High Throughput
The switch delivers up to 6.4 Tbps bidirectional Layer 2 and Layer 3 performance, with latency as low as 550 nanoseconds.
Junos OS Capabilities
The QFX5120 supports advanced networking features such as EVPN, BGP Additional Paths, MPLS, Layer 3 VPN, and IPv6 Provider Edge (6PE).
Flexible Deployment Options
EVPN-VXLAN Layer 2 and Layer 3 gateway support enables edge routed or centrally routed overlay data center deployments.
Network Automation
Support for intent-based automation, Terraform, Python, Puppet, Ansible, and zero-touch provisioning (ZTP) addresses growing network complexity in Day 0 to Day 2+ operations.
Fabric Management
Intent-based Juniper Apstra software provides full Day 0 through Day 2+ capabilities for IP/EVPN fabrics with closed-loop assurance in the data center.
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QFX5120
The QFX5120 line offers 1/10/25/40/100GbE switches designed for data center, data center edge, data center interconnect and campus deployments with requirements for low-latency Layer 2/Layer 3 features and advanced EVPN-VXLAN capabilities.
| Technical Features | |
Use Case: Data Center Fabric Leaf/Spine, Campus Distribution/Core, applications requiring MACsec Port Density:
Throughput: Up to 2.16/4/6.4 Tbps (bidirectional) MACsec: AES-256 encryption on all ports (QFX5120-48YM) |
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QFX5130
The QFX5130 line offers high-density, cost-optimized, 1-U, 400GbE and 100GbE fixed-configuration switches based on the Broadcom Trident 4 processor. It’s ideal for environments where cloud services are being added. With 10/25/40/100/400GbE interface options, the QFX5130 is an optimal choice for spine-and-leaf deployments in enterprise, service provider, and cloud provider environments.
| Technical Features | |
Use Cases: Data Center Fabric Spine Port Density:
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QFX5220
The QFX5220 line offers up to 400GbE interfaces for very large, dense, and fast standards-based fabrics based on proven internet-scale technology. QFX5220 switches are an optimal choice for spine-and-leaf data center fabric deployments as well as metro use cases.
| Technical Features | |
Use Case: Data Center Fabric Spine Port Density:
Throughput: Up to 25.6 Tbps (bidirectional)
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Find QFX5120 in these solutions
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Data Center Interconnect
Juniper’s DCI solutions enable seamless interconnectivity that breaks through traditional scalability limitations, vendor lock-in, and interoperability challenges.
Automated Secure Data Center
The Juniper automated secure data center unites the multivendor automation and assured reliability of intent-based networking software with Juniper’s scalable and programmable switching and routing platforms.
QFX5120 FAQs
What are the port densities and speeds of the QFX5120 Switch?
The QFX5120 is available in several configurations:
- 48 ports of SFP 1GbE
- 80 ports of SFP+ 10GbE
- 124 ports of SFP 25GbE
- 32 ports of QSFP+ 40GbE
- 32 ports of QSFP28 100GbE
What are the main use cases for the QFX5120 Switch?
The QFX5120’s rich, low-latency Layer 2 and Layer 3 features and advanced EVPN-VXLAN capabilities make it an ideal switch for data center top-of-rack and enterprise campus distribution deployments.
What is the throughput of the QFX5120 Switch?
The QFX5120 can deliver up to 6.4 Tbps of bidirectional throughput.
What are the top features of the QFX5120 Switch?
Three key features are described below.
- Automation: The QFX5120 supports a number of network automation and plug-and-play operational features, including ZTP, event scripts, automatic rollback, and Python scripting.
- Flexible forwarding table: A Unified Forwarding Table (UFT) allows the QFX5120’s hardware table to be carved into configurable partitions of Layer 2 MAC, Layer 3 host, and longest prefix match (LPM) tables.
- Intelligent buffer management: The QFX5120 features a total of 32 MB of shared buffers. While 25% of the total buffer space is dedicated, the rest is shared among all ports and is user-configurable. The intelligent buffer mechanism in the QFX5120 effectively absorbs traffic bursts while providing deterministic performance, significantly increasing performance over static allocation.
Who should use the QFX5120 Switch?
Organizations that need to run extremely agile data centers with requirements for overlay/underlay network architectures should consider the QFX5120, which has Layer 3 gateway capabilities for routing between virtualized and bare-metal servers.
What QFX5120 Switch models are available?
There are four compact 1 U models that provide wire-speed packet performance, very low latency, and a rich set of Junos operating system features. Below are the available options and recommended use cases.
- QFX5120-48Y: a 10GbE/25GbE/100GbE data center leaf and campus distribution switch
- QFX5120-48YM: a 10GbE/25GbE/100GbE data center leaf and campus distribution switch with MACsec support on all ports
- QFX5120-48T: a 10GbE/100GbE data center leaf and campus distribution switch
- QFX5120-32C: a compact 100GbE data center leaf-and-spine and campus distribution switch
