Cisco Nexus N3K-C3172TQ-XL Network Switch
The
Cisco Nexus N3K-C3172TQ-XL is a high-performance data center and enterprise network switch from
Cisco Systems’ Nexus 3000 Series. It features 48 x 10GBASE-T RJ-45 ports plus 6 x QSFP+ uplink ports, providing flexible connectivity with support for
10 Gbps copper links and high-speed
40 Gbps uplinks. This switch delivers robust
Layer 2 and Layer 3 switching with low latency and high throughput for demanding network environments.
Key Features
- 48 x 10GBASE-T RJ-45 ports (backward compatible with 1 G/100 Mbps) for flexible high-speed copper connectivity.
- 6 x QSFP+ ports supporting 40 Gbps uplinks or 4×10 Gbps breakout.
- Compact 1 RU rack-mountable design for dense deployments.
- Layer 2 & Layer 3 switching with Cisco NX-OS.
- High switching capacity and performance suitable for data centers and aggregation layers.
- Redundant power supply support (varies by configuration).
Cisco Nexus N3K-C3172TQ-XL Specifications
| Specification | Details |
|---|
| Product Model | Cisco Nexus N3K-C3172TQ-XL |
| Series | Cisco Nexus 3000 Series Switches |
| Switch Type | Data Center / Top-of-Rack Ethernet Switch |
| Operating System | Cisco NX-OS |
| Form Factor | 1U Rack-mount |
| Ports | 48 × 10GBase-T RJ-45 ports (each supports 100 Mbps / 1 Gbps / 10 Gbps) |
| High-Speed Ports | 6 × QSFP+ (supports 40 Gbps or 4×10 Gbps breakout) |
| Switching Capacity | ~1.4 Tbps |
| Forwarding Rate | Up to ~1 billion pps (1 bpps) |
| System Memory | 8 GB RAM |
| MTU (Jumbo Frames) | Up to 9216 bytes |
| Power Supplies | Dual (redundant) |
| Typical Power Consumption | ~360 W |
| Dimensions (H×W×D) | ~4.4 × 43.9 × 50.5 cm |
| Weight | ~10 kg |
| Airflow Options | Forward and reverse airflow (port-side intake or exhaust) |
| Management Interfaces | Console, Management Ethernet, USB (standard for Nexus platforms) |
| Layer Support | Layer 2 & Layer 3 switching & routing |
| Typical Use Cases | Data center ToR, aggregation, high-performance networks |
Key Benefits
- High-density 10 Gbps connectivity over standard copper cabling, ideal for server access and top-of-rack deployments.
- Flexible uplink options with QSFP+ ports for high-speed aggregation or spine connectivity.
- Cisco NX-OS platform provides advanced networking features, programmability, and automation.
- Designed for data centers, enterprise cores, and aggregation layers requiring scalable performance.
How to Install Cisco Nexus N3K-C3172TQ-XL
Step-by-Step Installation Guide:
- Unbox & Inspect – Check the switch, rack mount brackets, power cables, and console cable.
- Rack Mounting – Secure the switch in a standard 19-inch rack using the supplied brackets.
- Power Connection – Connect the internal power supply; add redundant PSU if required.
- Console Access – Use the console port with a terminal app (e.g., PuTTY) to access initial setup.
- Initial Configuration – Configure hostname, management IP, and admin credentials.
- Connect Network Links – Plug in copper 10GBASE-T cables and QSFP+ modules for uplinks.
- Configure VLANs & Routing – Define VLANs, inter-VLAN routing, and advanced policies.
- Save Configuration – Use NX-OS commands to save the running configuration.
Tip: Update to the latest NX-OS release for improved features and security.
Compatibility
The Nexus N3K-C3172TQ-XL works with:
- Cisco Nexus and Catalyst series switches for end-to-end networking.
- 10GBASE-T copper links for servers and access devices.
- QSFP+ optical modules for high-speed uplinks.
- Network management tools that support Cisco NX-OS.
Best Use Cases
- Data center top-of-rack (ToR) switching
- Enterprise aggregation/core networks
- High-performance computing clusters
- Cloud and virtualization infrastructure
- Network backbones requiring 40 Gbps uplinks
FAQ (Frequently Asked Questions)
Q1: What speeds do the ports support?
The 48 RJ-45 ports support up to 10 Gbps and are backward compatible with 1 G and 100 Mbps.
Q2: What are the QSFP+ ports used for?
QSFP+ ports can be used as 40 Gbps uplinks or broken out into multiple 10 Gbps links.
Q3: Is this switch Layer 3 capable?
Yes — it supports Layer 2 and Layer 3 switching with Cisco NX-OS.
Q4: Is the switch rack-mountable?
Yes — it is a 1 RU rack-mountable switch.
Q5: Is this switch suitable for enterprise networks?
Yes — it’s designed for data center and enterprise environments requiring high throughput.
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