Data sheet
HPE JUNIPER NETWORKING QFX5140 SWITCH SERIES
Table of Contents
Product overview
16 Tbps switching capacity
24x 400G QSFP112 ports
8x 800G OSFP800 ports
Broadcom Trident 5
112G PAM4 SerDes
1RU form factor
AC power option
Junos OS Evolved
Product description
The HPE Juniper Networking QFX5140 Switch Series is a next-generation, 1RU fixed-configuration data center switch designed for AI fabric, spine, leaf, and border leaf deployments. Engineered to meet the increasing demands of modern data centers, the QFX5140 delivers high bandwidth, low latency, and operational efficiency in a compact form factor, making it a versatile foundation for next-generation Ethernet fabrics.
Powered by the Broadcom Trident 5 ASIC with 112G PAM4 SerDes, QFX5140-24CD8O delivers 16 Tbps of switching capacity with industry-leading port density: 24× 400G QSFP112, 8× 800G OSFP800 & 2x SFP28 ports with flexible breakout to 160× 100G for rapid scale-out. Its low latency and carefully sized on-chip buffering are optimized for predictable, low-jitter performance rather than bulk queueing, making the switch well suited for inference traffic. Native support for RoCEv2, along with modern congestion management features such as PFC, ECN, and dynamic load balancing, enables efficient GPU-to-GPU communication while maintaining Ethernet flexibility. Positioned as a leaf or pod-level aggregation switch, the QFX5140 provides a balanced foundation for scaling inference clusters with high performance, operational simplicity, and future-proof bandwidth.
Building on the proven QFX5130 platform (Trident 4) and incorporating AI / machine learning (ML) feature parity with the QFX5240 platform (Tomahawk 5), the QFX5140 is purpose-built for enterprises and cloud providers evolving their data center fabrics from 100G and 400G to 400G and 800G. With native RoCEv2 support, end-to-end congestion control for data center networks, and enhanced telemetry and metadata, the QFX5140 is well-suited for storage and AI/ML inference networks where deterministic performance and scalability are critical.
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| Model | Configuration | Description |
|---|---|---|
| QFX5140-24CD8O | 24x 400G QSFP112 + | Next-generation 1RU switch; AC, AFO/AFI |
| | 8x 800G OSFP + | |
| | 2x SFP28 | |
| | | |
| | | |
Product highlights
High performance and density
− 16 Tbps full-duplex switching capacity (nonblocking)
− 24× 400G QSFP112 ports with native 112G PAM4 SerDes
− 8× 800G OSFP800 ports for ultra-high-bandwidth uplinks
− 2x SFP28 ports
− Mixed-speed support: 25/50/100/200/400/800GbE
− 400G and 800G ZR/ZR+ coherent optics support
− Flexible breakout: 2x 50G, 4x 50G, 4x 100G, 2x 200G, 2x 400G, 8x 100G, 4x 200G
− 400G LPO support on all QSFP112 ports
− Latency as low as 918 ns (cut-through) and 1102 ns (store-and-forward)
AI/ML and storage fabric ready
− ROCEv2 for large-scale AI/ML data movement with QoS
− End-to-end data center networking congestion control
− Enhanced metadata for high-resolution telemetry
− On-par feature set with QFX5240 (TH5) for AI frontend
− Global load balancing (GLB) support
− Ideal for inference and storage network deployments
Operational efficiency
− Junos OS Evolved operating system
− In-service software upgrade (ISSU / fast firmware boot)
− Secure zero touch provisioning (sZTP)
− EVPN-VXLAN for IP fabric deployments
− Command line interface (CLI), SNMP, and streaming telemetry management
− Apstra support for intent-based networking
Resilient and secure design
− 1+1 redundant, hot-swappable PSUs (AC)
− 5+1 redundant hot-swappable fan trays (AFO and AFI)
− TPM 2.0 with secure boot and DevID (IEEE 802.1AR)
− PTP Boundary Clock with Hardware Timestamping (IEEE 1588)
− FIPS 140-3 Level 1 compliance
− RoHS6 and REACH compliant
| Deployment role | Description |
|---|---|
| AI fabric—inference | Frontend inference and storage networking in AI clusters; superior scale and multitenancy vs. Tomahawk-based alternatives |
| AI fabric—storage | Storage fabric for AI/ML pipelines; ROCEv2 for high-throughput, low-latency data movement |
| DC spine / super-spine | High-bandwidth aggregation in three-stage and five-stage IP CLOS fabrics |
| DC leaf / end-of-row | EVPN-VXLAN leaf in IP fabric; 400G/800G uplinks with 25G–200G server-side connectivity. EVPN Optimized Inter-Subnet Multicast (OISM). MAC-VRF EVPN service types: VLAN-based, VLAN-aware, VLAN-bundle |
| Border leaf | IP fabric edge with EVPN-VXLAN gateway functionality and routing. DCI seamless tunnel stitching EVPN-VXLAN to EVPN-VXLAN (RFC 9014) for the L2 extension and L3 DCI extension use-cases. MAC-VRF EVPN service types: VLAN-based, VLAN-aware, VLAN-bundle |
| Telco DC | VXLAN-to-VXLAN stitching and AR-assisted replication for telco data center workloads |
| | |
| | |
Features
Layer 2
− STP—IEEE 802.1D (802.1D-2004)
− Rapid Spanning Tree Protocol (RSTP) (IEEE 802.1w); MSTP (IEEE 802.1s)
− Bridge protocol data unit (BPDU) protect; loop protect; root protect
− VLAN—IEEE 802.1Q VLAN trunking; routed VLAN interface (RVI)
− Static MAC address assignment; Global MAC learning disable
− Link aggregation and LACP (IEEE 802.3ad); IEEE 802.1AB LLDP
− LAG load sharing—bridged or routed (unicast or multicast) traffic: IP: SIP, DIP, TCP/UDP source port, TCP/UDP destination port; L2 and non-IP: MAC SA, MAC DA, Ether type, VLAN ID, source port
Layer 3
− Static routing; OSPF v2/v3; IS-IS; BGP, filter-based forwarding; VRRP/VRRPv3
− Virtual routers; IPv6; DHCPv4/v6 relay (stateless); VRF-aware DHCP
Security and filters
− Secure interface login and password; Secure boot; RADIUS; TACACS+
− Ingress and egress filters: Allow and deny, port filters, VLAN filters, and routed filters, including management port filters and loopback filters for control plane protection
− Filter actions: Logging, system logging, reject, mirror to an interface, counters, assign forwarding class, permit, drop, police, mark
− SSH v1/v2; Static ARP support; Storm control, port error disable, and auto recovery
− Control plane denial-of-service (DoS) protection; Image rollback
Multicast
− IGMP v1/v2/v3 (including proxy, querier, and snooping); MLD v2 and MLD snooping
− Intersubnet multicast using IRB interface
− PIM-SM, PIM-SSM, PIM-DM, PIM-Bidir; Multicast Source Discovery Protocol (MSDP)
Quality of service (QoS)
− L2 and L3 QoS: Classification, rewrite, queuing; 10 hardware queues per port (8 unicast, 2 multicast)
− Rate limiting: Ingress policing (1 rate 2 color, 2 rate 3 color); Egress policing and shaping (per queue, per port)
− Strict priority queuing (LLQ); Shaped-deficit weighted round robin (SDWRR)
− Layer 2 classification: Interface, MAC address, Ether type, 802.1p, VLAN
− Congestion avoidance: WRED, ECN; Configurable shared buffer and buffer monitoring; Congestion
Notification Profile
− Priority-based flow control (PFC)—IEEE 802.1Qbb; Trust IEEE 802.1p
MPLS
− Static label-switched paths (LSPs)
− RSVP-based signaling of LSPs
− LDP-based signaling of LSPs
− LDP tunneling (LDP over RSVP)
− MPLS class of service (CoS)
− MPLS LSR support
− IPv4 L3 VPN (RFC 2547, RFC 4364)
− MPLS fast reroute (FRR)
EVPN-VXLAN
− EVPN with VXLAN transport; Pure type-5 route support with symmetric inter-IRB routing
− All-active multihoming (ESI-LAG, EVPN-LAG); Multiple EVI/MAC-VRF instances
− MAC-VRF EVPN service types: VLAN-based, VLAN-aware, VLAN-bundle
− ARP/ND suppression (proxy-ARP/ND); ingress multicast replication
− IGMPv2 snooping fabric-wide (EVPN route type-6/7/8); IP prefix advertisement in EVPN-VXLAN
− Route type-5 EVPN IP VRF instances support for IP prefix advertisement
− DCI seamless tunnel stitching EVPN-VXLAN to EVPN-VXLAN (RFC 9014)
− EVPN OISM; multicast assisted replication (AR-leaf and AR-spine)
− Network virtualization overlay using EVPN (RFC 8365); MAC-VRF instances with VLAN-based, VLAN-aware, VLAN-bundle service types
Data center bridging (DCB)
− Explicit congestion notification (ECN)
− Priority-based flow control (PFC)—IEEE 802.1Qbb
High availability
− Bidirectional forwarding detection (BFD)
Visibility and analytics
− Switched port analyzer (SPAN); Remote SPAN (RSPAN); Encapsulated Remote SPAN (ERSPAN)
− sFlow® v5; Junos Telemetry Interface
Management and operations
− Role-based CLI management and access; CLI through console, telnet, or SSH
− Extended ping and traceroute; Junos OS Evolved configuration rescue and rollback
− SNMP v1/v2/v3; Junos OS Evolved XML management protocol; High frequency statistics collection
− ZTP; Python; Junos OS Evolved event, commit, and OP scripts
− Apstra Data Center Director—management, monitoring, and analytics for data center fabrics
Software scale
| Software | QFX5140-24CD8O |
|---|---|
| | |
| MAC addresses per system | 352,000 |
| VLAN IDs | 4000 |
| Number of link aggregation groups (LAGs) | 128 |
| Ingress routed ACL (RACL) | 56,000 total (14K per pipe x 4 pipes) |
| Ingress VLAN ACL (VACL) | 14,000 |
| Ingress port ACL (PACL) | 56,000 total (14K per pipe x 4 pipes) |
| Egress routed ACL (RACL) | 4000 total (1K per pipe x 4 pipes) |
| Egress VLAN ACL (VACL) | 2000 |
| Egress port ACL (PACL) | 8000 total (2K per pipe x 4 pipes) |
| IPv4/v6 unicast routes | 1.44M/738K |
| ARP entries | 64,000 |
| Jumbo frame | 9216 bytes |
| Traffic mirroring destination ports per switch | 4 |
| Maximum number of mirroring sessions | 4 |
| Traffic mirroring destination VLANs per switch | 4 |
| Total packet buffer (MB) | 128 |
Hardware specifications
| Hardware | QFX5140-24CD8O |
|---|---|
| | |
| | |
| System throughput | Up to 16/32 Tbps (unidirectional/bidirectional) |
| Forwarding capacity | ~6.6 billion packets per second (Bpps) |
| Port density | 24x QSP112 400GbE + 8x OSFP 800GbE + 2x SFP28 |
| Maximum ports with breakout | 40x 400GbE + 2x 25/10GbE |
| | 80x 200GbE + 2x 25/10GbE |
| | 160x 100/50/25GbE + 2x 25/10GbE |
| Dimensions (WxHxD) | 17.28 x 1.72 x 21.59 in. |
| | (43.8 x 4.3 x 53.59 cm) |
| Switch chips | Broadcom Trident 5 |
| Rack units | 1U |
| Weight | 24.5 lbs. (11.1 kg) with power supplies and fans installed |
| Operating system | Junos OS Evolved |
| CPU | Intel® Ice Lake-D LCC |
| Memory | 32 GB (16 GBx 2) of DDR4 |
| Storage | 2x 200 GB |
| Power | Redundant (1+1) hot-pluggable 1600W AC power supplies |
| Cooling | Ports-to-FRUs (AFO) and FRUs-to- ports (AFI) cooling |
| | 6 fan trays, redundancy (5+1) hot- swappable fan modules |
| Total packet buffer | 128 MB |
| Warranty | HPE Juniper Networking standard one-year warranty |
| AC input | Voltage: 100–127 VAC, 12 A / 200–240 VAC, 9 A, Frequency: 50/60 Hz |
Environmental ranges
| Parameter | Specification |
|---|---|
| | |
| | |
| Operating temperature | 0°C to 40°C @6000 ft for AFO system |
| | 0°C to 40°C @sea level for AFI systems |
| Storage temperature | –40°C to +70°C |
| Operating altitude | AFO: 6000 ft |
| | AFI: Sea level |
| Operating humidity | 5% to 90% RH (noncondensing) |
| Seismic | Zone 4 earthquake rating |
Power consumption
| Parameter | QFX5140 |
|---|---|
| Maximum power draw | 883W |
| Typical power draw | 543W |
| Notes Maximum power consumption measured at 40°C ambient temperature with SR optics at 100% load with IMIX traffic. Typical power consumption measured at 25°C ambient temperature with DACs at 50% load with IMIX traffic, excluding transceivers. Power consumption is subject to operating conditions and unit-to-unit variations. | |
| | |
QFX5140 approvals
| Standard/specification | Description |
|---|---|
| | |
| CAN/CSA-C22.2 No. 60950-1-07+A1:2011+A2:2014 | Information Technology Equipment—Safety |
| UL 62368-1:2019 R10.21 | Audio/video, Information and Communication Technology Equipment—Safety |
| UL/CSA 62368-1 (third edition) | Audio/video, Information and Communication Technology Equipment—Safety |
| IEC 62368-1:2014 | Audio/video, Information and Communication Technology Equipment—Safety (all country deviations) |
| IEC 62368-1:2018 | Audio/video, Information and Communication Technology Equipment—Safety (all country deviations) |
| CSA C22.2 No. 62368-1:19 | Audio/video, Information and Communication Technology Equipment—Safety |
| IEC/EN 60825-1 | Safety of Laser Products—Part 1: Equipment Classification and Requirements |
| IEC 60825-2 | Safety of Laser Products—Part 2: Safety of Optical Fiber Communication Systems |
| FDA 21 CFR Part 1040 | Performance Standards for Light-Emitting Products |
| REDR c 1370 / CAN/CSA-E 60825-1 | Laser Safety—Part 1 |
| Standard/specification | Description |
|---|---|
| | |
| ICES-003 / ICES-GEN | Class A—Canada |
| EN 55032 / CISPR 32 | Class A—Multimedia Equipment Emissions |
| EN 55035 / CISPR 35 | Multimedia Equipment Immunity |
| EN 300 386 V1.6.1 / V2.1.1 | Electromagnetic compatibility for network equipment |
| EN 55024 / CISPR 24 | IT Equipment Immunity |
| IEC/EN 61000 series | Electromagnetic Compatibility |
| IEC/EN 61000-3-2 | Limits for Harmonic Current Emissions |
| IEC/EN 60825-1 | Safety of Laser Products—Part 1: Equipment Classification and Requirements |
| IEC/EN 61000-3-3 | Limitation of Voltage Changes and Flicker |
| AS/NZS CISPR 32 | Class A—Australia/New Zealand |
| VCCI-CISPR 32 | Class A—Japan |
| BSMI CNS 15936 | Class A—Taiwan |
| KS C 9835 / KS C 9832 | Class A—South Korea (formerly KN 35 / KN 32) |
| KS C 9610 series | Electromagnetic Immunity—South Korea |
| KN 32 / KN 35 | South Korea EMC |
| TEC/SD/DD/EMC-221/05/OCT-16 | India—Telecom Engineering Centre |
| TCVN 7189 / TCVN 7317 | Vietnam EMC Standards |
| Standard/specification | Description |
|---|---|
| GR-3160-CORE | NEBS Requirements for Telecommunications Data Center Equipment and Spaces (DC NEBS; evaluation only) |
| GR-1089-CORE Issue 7/8 | Electromagnetic Compatibility and Electrical Safety for Network Telecommunications Equipment (evaluation only—no full NEBS certification required) |
| | |
| | |
| Standard/specification | Description |
|---|---|
| | |
| REACH | Registration, Evaluation, Authorization and Restriction of Chemicals—EU |
| China RoHS | China Restriction of Hazardous Substances (post-FRS+2Q) |
| WEEE | Waste Electrical and Electronic Equipment—EU |
| California Prop 65 | Safe Drinking Water and Toxic Enforcement Act |
| TSCA | Toxic Substances Control Act—USA |
| POPs | Persistent Organic Pollutants compliance |
| TAA | Trade Agreements Act compliance (post-FRS+2Q) |
| Recycled Material | Use of recycled content per WEEE directive |
| Standard/specification | Description |
|---|---|
| | |
| AT&T TEER (ATIS-06000015.03.2013) | Telecommunications Energy Efficiency Ratio |
| ECR 3.0.1 | Energy Consumption Rating |
| ETSI ES 203 136 (2013-05) | Environmental Engineering—Measurement method for energy efficiency |
| Verizon TEEER (VZ.TPR.9205 Issue 6) | Telecommunications Energy Efficiency Ratio—Verizon |
| ETSI EN 300 019 | Environmental Conditions and Tests for Telecom Equipment |
| ETSI EN 300 019-2-1 | Storage conditions |
| ETSI EN 300 019-2-2 | Transportation conditions |
| ETSI EN 300 019-2-3 | Stationary use at weather-protected locations (non-condensing) |
| ETS 300 753 | Acoustic noise emitted by telecommunications equipment (~78 dBA target) |
| Standard/specification | Description |
|---|---|
| TAA | Trade Agreements Act |
| FIPS 140-3 level 1 | Federal Information Processing Standard—Cryptographic Module Validation |
| Common criteria level 1 | ISO/IEC 15408—Evaluation Assurance Level 1 |
| CLEI code | Common Language Equipment Identifier (Telco) |
| | |
| | |
Ordering information
| SKU | Type | Description |
|---|---|---|
| | ||
| QFX5140-24CD8O-AO | System | 24x400G QSFP112 + 8x800G OSFP; AC power, AFO (front-to-back) cooling |
| QFX514024CD8OCHAS | Chassis FRU | QFX5140-24CD8O Chassis without PSU and FAN |
| QFX5140-FANAO | FAN FRU | Fan tray—front-to-back (AFO) airflow |
| QFX5140-FANAI | FAN FRU | Fan tray—back-to-front (AFI) airflow |
| JPSU-1600W-1UACAFO | PSU FRU | 1600 W AC power supply, front-to-back (AFO) airflow |
| JPSU-1600W-1UACAFI | PSU FRU | 1600 W AC power supply, back-to-front (AFI) airflow |
| JNP-4P-TL-1RU-RMK | Accessory | 1RU 4-post tool-less rack mount kit for QFX5140-24CD8O |
| Parameter | Specification | |
|---|---|---|
| S-QFX5K-C4-A1-X (X=3,5) | Base L3 Software Subscription (X Years; X=3,5) License for QFX5140 | |
| S-QFX5K-C4-A2-X (X=3,5) | Advanced Software Subscription (X Years; X=3,5) License for QFX5140 | |
| QFX5K-C4-P1-X (X=3,5) | Premium Software Subscription (X Years; X=3,5) License for QFX5140 | |
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