• Cisco N3K-C3172PQ-10GE silver switch with 48x10G SFP+ and 6x40G QSFP+ ports
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Cisco

Cisco N3K-C3172PQ-10GE | Nexus 3100 48-Port 10G SFP+ Switch, 6x 40G QSFP+, Layer 3

N3K-C3172PQ-10GE

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Description

The Cisco Nexus 3172PQ is a high-density 1RU data center switch delivering line-rate Layer 2 and Layer 3 performance for top-of-rack deployments. With 48x 10G SFP+ ports and 6x 40G QSFP+ ports, it provides 1.4 Tbps switching capacity and supports up to 72 ports of 10GbE connectivity. Running Cisco NX-OS, this switch is ideal for scalable data center architectures requiring advanced routing, VXLAN, and high-availability features.

Features

Layer 2 switching with IEEE 802.1Q VLAN support up to 4096 VLANs
- Layer 3 routing: OSPF, BGP, EIGRP, static routing, and policy-based routing
- VRF-lite for virtual routing instances
- VXLAN support for overlay network virtualization
- Rapid PVST+ and MSTP (IEEE 802.1w/802.1s) spanning tree protocols
- Link aggregation with LACP (IEEE 802.3ad)
- IPv4 and IPv6 routing and multicast (PIM-SM, IGMP v2/v3)
- Quality of Service with 8 hardware queues per port
- Comprehensive ACL support for traffic filtering and security
- Port mirroring (SPAN/RSPAN/ERSPAN) for traffic monitoring
- Hot-swappable redundant power supplies and fans
- Management via CLI, SNMP, Telnet, SSH, NX-API
- Console, USB, and out-of-band management ports
- NX-OS modular operating system with in-service software upgrades
- Advanced data center features: FabricPath, OTV, FCoE (with license)

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

48x 10G SFP+ ports (1GbE/10GbE capable)
- 6x 40G QSFP+ ports (4x10G or 1x40G per port)
- Total switching capacity: 1.4 Tbps
- Forwarding rate: up to 1 Bpps (billion packets per second)
- Line-rate Layer 2 and Layer 3 performance on all ports
- 4 GB system memory
- Jumbo frame support up to 9216 bytes
- 2x redundant hot-swappable power supplies (400W AC or DC)
- 3+1 redundant fan modules
- Forward and reverse airflow options
- Operating system: Cisco NX-OS
- Form factor: 1RU rack-mountable
- Dimensions: 1.72 x 17.3 x 17 in (4.4 x 43.9 x 43.2 cm)
- Weight: 18.6 lb (8.4 kg)
- Typical power consumption: 143W
- Maximum power consumption: 293W

FAQs

Q: What licensing is required for Layer 3 features on the N3K-C3172PQ-10GE?
A: The Cisco Nexus 3172PQ requires the N3K-LAN1K9 (LAN Enterprise) license to enable advanced Layer 3 features including BGP, OSPF, EIGRP, and VRF-lite. Base Layer 2 functionality is available without additional licensing. When operating in Nexus 9000 mode, N3K-LAN1K9 covers all supported L3 features.

Q: Can the QSFP+ ports be used for 10G connectivity?
A: Yes, each of the 6x QSFP+ ports can be configured to support either 1x 40G connection or breakout to 4x 10G connections using appropriate breakout cables, providing flexibility to scale from 48 to 72 ports of 10G connectivity as needed.

Q: What is the difference between the N3K-C3172PQ-10GE and N3K-C3172PQ-XL models?
A: The N3K-C3172PQ-XL variant features enhanced specifications including 8GB RAM (versus 4GB) and dual-core 2.5GHz x86 CPUs, providing higher performance for larger routing tables and more demanding data center workloads. Both models share the same port configuration.

Q: Does this switch support VXLAN and overlay networks?
A: Yes, the Nexus 3172PQ running NX-OS supports VXLAN overlay networking, making it suitable for modern data center fabric architectures including spine-leaf topologies and network virtualization deployments.

Q: What airflow options are available for this switch?
A: The N3K-C3172PQ-10GE is available with both forward airflow (port-side exhaust) and reverse airflow (port-side intake) configurations to match your data center hot-aisle/cold-aisle cooling design. Power supplies and fans must match the selected airflow direction.

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