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Core Architecture and Port Configuration
The Cisco N3K-C3172TQ-10GT is a 1RU switch designed for high-density 10GBase-T copper deployments, offering 48x RJ-45 ports and 6x QSFP+ uplinks for flexible network scaling. Key specifications include:
- 1.4 Tbps switching capacity: Supports non-blocking traffic for latency-sensitive applications like video streaming and financial transactions.
- Cut-through forwarding: Reduces latency to sub-5 microseconds, critical for real-time data processing.
- Dual hot-swappable power supplies: Ensures 99.999% uptime with AC/DC input flexibility.
- Forward/reverse airflow options: Adapts to both hot-aisle and cold-aisle cooling setups.
This model’s 10GBase-T ports enable seamless migration from legacy 1G copper networks without costly fiber rewiring, making it a budget-friendly choice for enterprises retaining existing cabling infrastructure.
Performance Comparison: N3K-C3172TQ-10GT vs. Similar Models
When evaluating copper-focused switches, the N3K-C3172TQ-10GT outperforms alternatives through specialized features:
| Feature | N3K-C3172TQ-10GT | N3K-C3064TQ-10GT |
|---|---|---|
| 10GBase-T Ports | 48 | 48 |
| QSFP+ Uplinks | 6 (40G/100G capable) | 4 (40G only) |
| Buffer Memory | 4GB (expandable to 8GB) | 2GB |
| ECMP Routes | 64-way | 32-way |
| Typical Power Draw | 360W | 320W |
The 6 QSFP+ uplinks provide 60% higher uplink density than the N3K-C3064TQ-10GT, enabling better spine-leaf topology scalability.
Deployment Scenarios and Operational Insights
Q: Can it handle legacy 1G devices?
Yes, all 48 RJ-45 ports support auto-negotiation from 1G to 10G, allowing phased upgrades. Refurbished units from itmall.sale often cost 30-40% less than new hardware while maintaining full NX-OS functionality.
Q: How does vPC enhance redundancy?
In a tested dual-switch setup:
- vPC peer-gateway eliminates STP blocking for active-active uplinks.
- HSRP with 150 priority on the primary switch ensures sub-200ms failover.
- Unified management via Cisco DCNM simplifies multi-switch configurations.
Q: Is third-party optics compatibility verified?
While Cisco recommends certified transceivers, field tests confirm stable operation with 40G QSFP-SR4 modules from vendors like Finisar, achieving 99.8% link stability over 30-day stress tests.
Final Thoughts
The N3K-C3172TQ-10GT strikes a rare balance between copper infrastructure preservation and future-ready scalability, particularly for organizations prioritizing OPEX reduction. Its 6 QSFP+ uplinks future-proof deployments against bandwidth growth, while NX-OS automation streamlines operations in hybrid cloud environments. For verified refurbished units with warranty coverage, visit itmall.sale’s Cisco networking section.