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N3K-C31128PQ-10GE
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- Nexus 31128PQ, 96 SFP+ ports, 8 QSFP+ ports, 2RU switch
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N3K-C31128PQ-10GE
Nexus 31128PQ, 96 SFP+ ports, 8 QSFP+ ports, 2RU s...
$39,869.00
$7,116.00
20 in Global Warehouse
$7,116.00
82% off
TRUSTED, TRIED, PROVEN
N3K-C31128PQ-10GE Overview
N3K-C31128PQ-10GE is engineered with a modern, high-density architecture that supports both Layer 2 and Layer 3 operations, ensuring low-latency and high-throughput performance for demanding data center environments. Its robust design features an efficient AC power supply and a suite of 10GE ports—including dedicated SFP+ modules—crafted to deliver reliable, high-speed connectivity for mission-critical applications.
N3K-C31128PQ-10GE also offers reliable stacking capabilities that facilitate straightforward scalability and network expansion. Designed for versatility and performance, this switch is ideally suited for use cases ranging from large-scale enterprise deployments to data center applications where consistent uptime and a compact, rack-mount form factor are essential.
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N3K-C31128PQ-10GE Specifications
| Product Type | Switch |
| Power Source | AC Power Supply |
| Layer Supported | Layer 2 / Layer 3 |
| Form Factor | Rack-mount |
| Power Consumption | 150 W |
| Number Of Ethernet Ports | 24–48 Ports |
| Number Of Downlink Ports | N/A |
| Manageable | Managed |
| Ethernet Technology | 10GE |
| Media Type Supported | Fiber |
| Redundant Power Supply Supported | No |
| Manufacturer Part Number | N3K-C31128PQ-10GE |
| Uplink Configuration | 10G |
| IOS | N/A |
| POE Support | Non POE |
| SFP Ports | 4 SFP Ports |
| Memory | 256 MB |
| Rack Units | 1 RU |
| Interface Ports | 10GE |
| Port/Expansion Slot Details | N/A |
| Flash Memory | 64 MB |
| Switching Capacity | N/A |
| Switching Capacity With Stacking | N/A |
| Product Name | Cisco Nexus N3K-C31128PQ-10GE Switch |
| Height | 1.75 inches |
| Width | 17.5 inches |
| Depth | 18 inches |
| Weight | 15 lbs |
N3K-C31128PQ-10GE Use Case
High-Density Spine-Leaf Fabric Deployment in Enterprise Data Centers
In large enterprise data centers building a scalable spine-leaf topology, the N3K-C31128PQ-10GE Nexus 31128PQ switch provides 96 SFP+ 10GbE leaf ports and 8 QSFP+ 40GbE spine uplinks in a 2RU form factor. By delivering up to 1.2Tbps of non-blocking throughput, low-latency forwarding, and automated NX-API orchestration, this deployment accelerates east-west traffic by 50% and cuts network expansion time by 30%, ensuring seamless growth and simplified operations.
High-Performance Computing and Big Data Cluster Networking
For HPC and big data analytics clusters demanding extreme throughput and predictable latency, the Cisco Nexus 31128PQ (N3K-C31128PQ-10GE) supplies 96 low-latency 10GbE ports to interconnect compute nodes and storage arrays, plus 8 40GbE QSFP+ ports for top-of-rack aggregation. Leveraging Cisco Dynamic Buffer Allocation and advanced telemetry, this solution boosts job throughput by 25%, reduces jitter in bursty workloads, and streamlines capacity planning with real-time performance insights.
Carrier-Grade Metro Edge Aggregation for Service Providers
At the metro edge, service providers use the N3K-C31128PQ-10GE Nexus 31128PQ to terminate up to 96 customer SFP+ 10GbE links and aggregate traffic over 8 QSFP+ 40GbE uplinks to the core. With integrated MPLS, QoS, EVPN-VXLAN segmentation, and hitless upgrade capabilities, this 2RU switch delivers 99.999% availability, reduces convergence times by 40%, and maximizes port density for profitable Ethernet services.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Depth | 18 inches | 15 inches | 18.0 inches | 18 inches | 17 inches |
| Ethernet Technology | 10GE | 10/100/1000 | 10/100/1000 | 40 Gigabit Ethernet | 10/100/1000 |
| Flash Memory | 64 MB | 256 MB | 256 MB | 256 MB | 32 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches | 1.75 inches |
| Interface Ports | 10GE | 10/100/1000 | 10/100/1000 | 40GE | 10/100/1000 |
| IOS | N/A | IP Services | IP Services | N/A | IP Services |
| Layer Supported | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed | Managed | Managed | Managed |
| Manufacturer Part Number | N3K-C31128PQ-10GE | N3K-C3408-S | N3K-C3064TQ-32T | N3K-C3132Q-40GE | N3K-C3172TQ-10GT |
| Media Type Supported | Fiber | Combo | Twisted Pair | Fiber | Fiber |
| Memory | 256 MB | 256 MB | 512 MB | 512 MB | 256 MB |
| Number of Downlink Ports | N/A | 48 Ports | 32 Ports | 40 Ports | 8 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | 24–48 Ports | Under 12 Ports |
| POE Support | Non POE | Non POE | Non POE | Non POE | Non POE |
| Port/Expansion Slot Details | N/A | N/A | 32 fixed 10/100/1000 ports, 4 dedicated 10G SFP+ uplink ports | 40-port fixed configuration with QSFP+ slots | Fixed 10-Gigabit Ethernet ports |
| Power Consumption | 150 W | 210 W | N/A | N/A | N/A |
| Power Source | AC Power Supply | Redundant Power Supply | Redundant Power Supply / AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco Nexus N3K-C31128PQ-10GE Switch | Cisco Nexus 3408-S Switch | Cisco Nexus 3064TQ-32T Fixed Switch | Cisco Nexus 3132Q-40GE Switch | Cisco Nexus 3172TQ 10-Gigabit Ethernet Switch |
| Product Type | Switch | Switch | Switch | Switch | Switch |
| Rack Units | 1 RU | 1 RU | 1 RU | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes | Yes | No | Yes |
| SFP Ports | 4 SFP Ports | Combo | 4 SFP Ports | N/A | 4 SFP Ports |
| Switching Capacity | N/A | 480 Gbps | 640 Gbps | 3200 Gbps | N/A |
| Switching Capacity with Stacking | N/A | N/A | N/A | 6400 Gbps | N/A |
| Uplink Configuration | 10G | 10G | 10G | 40G | 10G |
| Weight | 15 lbs | 12 lbs | 20 lbs | 22 lbs | 12 lbs |
| Width | 17.5 inches | 17.5 inches | 17.5 inches | 17.5 inches | 19 inches |
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Questions & Answers
Q
What is the Cisco Nexus 31128PQ switch (SKU: N3K-C31128PQ-10GE)?
A
The Cisco Nexus 31128PQ is a 2RU data center switch offering 96 fixed 10Gb SFP+ ports and 8 fixed 40Gb QSFP+ ports for high-density server and uplink connectivity.
Q
How much switching capacity does the Nexus 31128PQ deliver?
A
The Nexus 31128PQ provides up to 2.56 Tbps of non-blocking switching capacity and 1.92 Bpps of forwarding performance for latency-sensitive workloads.
Q
Which Cisco NX-OS features are supported on the Nexus 31128PQ?
A
The Nexus 31128PQ runs Cisco NX-OS 7.x, delivering enterprise-grade features such as VXLAN, EVPN, MPLS, QoS, OSPF, BGP, and advanced telemetry for modern data centers.
Q
What virtualization capabilities does the Nexus 31128PQ offer?
A
The Nexus 31128PQ supports Virtual Port Channel (vPC), Cisco FabricPath, VXLAN BGP EVPN, and Multi-Site Orchestration to simplify network virtualization and multi-tenant segmentation.
Q
How does the Nexus 31128PQ handle high-availability and redundancy?
A
The switch includes dual redundant, hot-swappable power supplies and fans, dual management modules, vPC peer redundancy, and in-service software upgrades (ISSU) for continuous uptime.
Q
What power supplies are included with the Nexus 31128PQ?
A
Each Nexus 31128PQ ships with two 650W AC hot-swappable power supplies; an optional 650W DC power supply is also available for mixed-mode power redundancy.
Q
What is the typical power consumption of the Nexus 31128PQ?
A
Under full load, the Nexus 31128PQ consumes approximately 500W, delivering an average of 3.5 W per 10Gb port for energy-efficient operation.
Q
How are the fan modules configured in the Nexus 31128PQ?
A
The switch includes six hot-swappable fan trays in a front-to-back airflow design, providing N+1 cooling redundancy in data center racks.
Q
Which management interfaces does the Nexus 31128PQ support?
A
Management options include a dedicated 10/100/1000 Ethernet management port, USB console port, and in-band management via Telnet, SSH, SNMP, NX-API, and Cisco DCNM.
Q
Can the Nexus 31128PQ be deployed as a Top-of-Rack (ToR) switch?
A
Yes. Its high-density 10Gb and 40Gb port configuration, low latency, and 2.56 Tbps throughput make it ideal for ToR deployments in enterprise and cloud data centers.
Q
What cooling and acoustic levels can I expect from the Nexus 31128PQ?
A
The switch uses front-to-back airflow with six modular fans, and operates below 65 dBA in data center environments, meeting enterprise noise requirements.
Q
What warranty and support options are available for the Nexus 31128PQ?
A
Cisco offers a limited lifetime hardware warranty with next-business-day replacement, and optional SMARTnet services for 24×7 technical support and software updates.
Q
Does the Nexus 31128PQ support Power over Ethernet (PoE)?
A
No. The Nexus 31128PQ is strictly a fiber-only switch with SFP+ and QSFP+ ports and does not provide PoE or PoE+ capabilities.
Q
What environmental certifications does the Nexus 31128PQ have?
A
The switch is compliant with RoHS, WEEE, CE, FCC Class A, and UL/CSA safety standards, ensuring eco-friendly operation and regulatory compliance.
Q
How do I license advanced features on the Nexus 31128PQ?
A
Advanced NX-OS features such as VXLAN BGP EVPN and Cisco Application Centric Infrastructure (ACI) integration require Cisco software activation licenses purchased separately.
Q
What monitoring and telemetry capabilities are available on the Nexus 31128PQ?
A
The switch supports NetFlow, SPAN, ERSPAN, sFlow, Cisco Data Center Network Manager (DCNM), streaming telemetry, and built-in event management for real-time visibility.
