Juniper QFX5110 Series Switches (Used & Refurbished)
The Juniper QFX5110 Series delivers high-performance, low-latency data cent...
Juniper QFX5110 Series Switches (Used & Refurbished)
The Juniper QFX5110 Series delivers high-performance, low-latency data center switching with a flexible mix of 10GbE, 40GbE, and 100GbE interfaces. Engineered for leaf-and-spine architectures, EVPN-VXLAN fabrics, and high-density cloud deployments, the QFX5110 family combines robust hardware with Juniper’s proven Junos OS and advanced telemetry.
BrightStar Systems supplies fully tested, used and refurbished QFX5110 switches, each backed by our 1-Year In-House Warranty. Our inventory supports a variety of airflow directions, port configurations, and performance tiers to match your data center design.
If your environment requires next-generation 25GbE or 100GbE upgrades, higher-density QFX5120 and QFX5200 models can be evaluated alongside the QFX5110 Series.
Juniper QFX5110 Series Overview
The QFX5110 family is built around Broadcom Trident II+ ASIC technology, offering predictable performance, flexible port options, and support for EVPN-VXLAN overlays. These switches excel in leaf roles, aggregation, and top-of-rack (ToR) deployments where automation, low latency, and scalable fabrics are essential.
Key features of the QFX5110 Series include:
48 × 10GbE SFP+ or 48 × 10GBASE-T access ports, depending on model
4 × QSFP28 uplinks supporting 40GbE/100GbE on 48-port models
32 × QSFP+ ports on 40GbE spine/aggregation SKUs
MACsec support on many models for link-level encryption
Rich L2/L3 feature set with EVPN-VXLAN, MPLS, and advanced routing
Broadcom Trident II+ ASIC for sub-microsecond latency
Extensive automation: ZTP, JTI streaming telemetry, NETCONF/YANG, Python scripting
AFI (front-to-back) and AFO (back-to-front) airflow options for different rack designs
For modern leaf-and-spine builds, QFX5110 switches pair seamlessly with QFX5120, QFX5200, and QFX10K switching platforms.
Explore More Juniper Switches
QFX5110 switches are often deployed alongside EX campus switches and MX routers for complete enterprise and data center architectures.
All Juniper QFX Series Switches
Juniper EX Campus Switches
Juniper MX Series Routers
Juniper SRX Firewalls
Related Juniper Switch Series
Customers evaluating the QFX5110 lineup often compare it to other Juniper data center switches:
Juniper QFX5100 Series – 10GbE ToR with lower entry cost.
Juniper QFX5120 Series – 25GbE leaf with 100GbE uplinks.
Juniper QFX5200 Series – High-density 25/100GbE switching for large fabrics.
Popular Juniper QFX5110 Models
Below are many of the most commonly purchased QFX5110 switches from our inventory.
QFX5110-48S-AFI – 48 × SFP+ 10GbE with AFI (front-to-back) airflow.
QFX5110-48S-AFO – 48 × SFP+ 10GbE with AFO (back-to-front) airflow.
QFX5110-32Q-AFI – 32 × QSFP+ 40GbE ports with AFI airflow.
QFX5110-32Q-AFO – 32 × QSFP+ 40GbE ports with AFO airflow.
Juniper QFX5110 Technical Specs & Architecture
The QFX5110 Series is ideal for ToR leaf switches or high-performance aggregation layers across enterprise, cloud, and service provider networks.
Core specifications include:
Switching capacity: up to 2.56 Tbps (model dependent)
Forwarding performance: up to ~1.4 Bpps with sub-microsecond latency
ASIC: Broadcom Trident II+
Overlay support: EVPN-VXLAN, MPLS, L3VPN
Routing protocols: BGP, OSPF, IS-IS, ECMP
Security: MACsec (model dependent), CoPP, DHCP snooping, DAI, ACLs
Automation: JTI telemetry, ZTP, NETCONF/YANG, Python scripting, REST APIs
QFX5110 Model Details
QFX5110-48S-AFI / QFX5110-48S-AFO
48 × SFP+ 1/10GbE access ports
4 × QSFP28 uplinks supporting 40/100GbE
Designed for high-density 10GbE access and EVPN-VXLAN leaf roles
AFI (front-to-back) and AFO (back-to-front) airflow options
QFX5110-32Q-AFI / QFX5110-32Q-AFO
32 × QSFP+ 40GbE ports (with QSFP28 support on select ports)
Breakout support for 4 × 10GbE or 4 × 25GbE per port
Ideal for spine/aggregation roles in leaf–spine fabrics
AFI and AFO airflow variants for different data center layouts
QFX5110-48T-AFI / QFX5110-48T-AFO
48 × 10GBASE-T copper ports
4 × QSFP28 40/100GbE uplinks
Perfect for environments standardized on RJ-45 copper cabling
AFI and AFO airflow options
Compatible Optics & Uplink Modules
QFX5110 switches support a broad range of Juniper-qualified optics and cabling for flexible deployments:
Juniper SFP, SFP+, QSFP, and QSFP28 Transceivers
10GbE SFP+ SR, LR, LRM, ER, and ZR
40GbE QSFP+ SR4, LR4, and AOC/DAC
100GbE QSFP28 SR4, LR4, CWDM4, PSM4
DAC and AOC cables for short-reach, low-latency connections
Breakout cables for 4 × 10GbE or 4 × 25GbE fan-out
Common QFX5110 Use Cases
Leaf switches in spine–leaf EVPN-VXLAN fabrics
Aggregation tiers in multi-tenant data centers
Hybrid cloud and virtualization fabrics
Low-latency workloads such as analytics and storage
Metro Ethernet or service provider edge where MPLS and L3VPN are required
Why Buy Used or Refurbished QFX5110 Switches?
40–70% cost savings compared to new OEM pricing
Faster availability than long OEM lead times
Fully tested, cleaned, and reset by experienced technicians
Backed by BrightStar Systems’ 1-Year In-House Warranty
How We Test Refurbished QFX5110 Switches
Every QFX5110 we sell goes through a thorough testing and inspection process in our lab, which can include:
Power-on diagnostics and full POST verification
Validation of all 10GbE/40GbE/100GbE ports using optics and DACs
Breakout testing for QSFP+/QSFP28 where applicable
Junos OS wipe, configuration reset, and software load as requested
Fan and airflow validation to confirm AFI/AFO orientation
Physical inspection and cleaning for data center–ready condition
QFX5110 Lifecycle, Support & Refresh Planning
Lifecycle stage: Widely deployed and supported in current Junos trains
Ideal refresh path: QFX5120 (25GbE), QFX5200 (25/100GbE), or QFX10K for larger cores
Common mixed deployments: QFX5110 leafs with QFX5120/QFX5200 spines
Support compatibility: Works within existing Juniper data center architectures with EVPN-VXLAN
QFX5110 Buy-Back & Trade-In Options
BrightStar Systems can buy back your used QFX hardware or offer trade-in value toward QFX5120, QFX5200, or MX platforms.
Fast, competitive bids on QFX5110 and other Juniper inventory
Support for full-rack and full–data center decommissioning
Asset recovery, packing, and logistics assistance
FAQ – Juniper QFX5110 Series
Q: Can QFX5110 switches operate as both leaf and spine nodes?
A: Yes. 48-port SFP+/10GBASE-T models are ideal for leaf/ToR roles, while 32Q models fit well as spine or high-bandwidth aggregation nodes.
Q: Do QFX5110 switches support EVPN-VXLAN?
A: Yes. QFX5110 switches include EVPN-VXLAN L2/L3 gateway functionality, making them a strong choice for modern multi-tenant data centers.
Q: What airflow options exist?
A: QFX5110 models are available with AFI (front-to-back) and AFO (back-to-front) airflow. Matching airflow with your existing racks and servers is important for thermal consistency.
Q: What optics are supported?
A: QFX5110 switches support a wide range of Juniper SFP+, QSFP+, and QSFP28 optics, as well as DAC/AOC cables and breakout options for 10/25/40/100GbE connectivity.
Q: Are used QFX5110 switches suitable for production data centers?
A: Absolutely. Our customers deploy used and refurbished QFX5110 switches in production environments worldwide, leveraging our testing process and warranty coverage.
Juniper QFX Reference Guides & Comparisons
Juniper QFX vs EX Series Switches – Which Platform Fits Your Deployment?
Juniper QFX5100 vs QFX5110 vs QFX5200 – Detailed Data Center Comparison
Request Pricing or Sell Your QFX5110 Hardware
