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Cisco N3K-C3172PQ-BA-L3 | Nexus 3100 48-Port 10G SFP+ Switch, 6x 40G QSFP+, Layer 3

SKU:N3K-C3172PQ-BA-L3

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Description

The Cisco Nexus 3172PQ is a high-performance Layer 2 and Layer 3 data center switch designed for top-of-rack deployments. Delivering up to 1.4 Tbps switching capacity and line-rate throughput across all ports, this 1RU switch features 48x 10G SFP+ ports and 6x 40G QSFP+ uplinks. The BA-L3 bundle includes Base and LAN Enterprise licenses for advanced routing protocols, reversed airflow for cold-aisle containment, and dual AC power supplies for redundancy.

Features

Layer 2 and Layer 3 switching with complete unicast and multicast routing protocol suites
- Comprehensive routing protocol support: BGP, OSPF, EIGRP, RIPv2, VRRP
- Multicast protocols: PIM-SM, PIM-SSM, MSDP
- 4,000 ingress ACL entries for granular security policies
- 4,096 VLAN support
- RSTP, MSTP spanning-tree protocols
- Jumbo frame support up to 9,216 bytes
- Line-rate Layer 2 and Layer 3 throughput on all ports
- Advanced QoS and traffic management
- Cisco NX-OS operating system with automation and programmability
- Python scripting, REST API, and NX-API support
- VXLAN support for network virtualization
- Low-latency, phy-less design for optimal performance
- Redundant power supplies and fan modules
- Hot-swappable components for zero-downtime maintenance
- Comprehensive security features including MACsec, RBAC, and control-plane protection

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 (support 100M/1G/10G)
- 6x 40G QSFP+ ports (native 40G or 4x 10G breakout mode)
- Switching capacity: 1.4 Tbps
- Forwarding rate: Up to 1 billion packets per second
- MAC address table: 288,000 entries
- Layer 2 and Layer 3 switching
- System memory: 4 GB RAM
- Dual-core 2.5 GHz x86 CPU
- Jumbo frame support: Up to 9,216 bytes
- Management: 1x GbE out-of-band, RS-232 console, USB
- Airflow: Reversed (port-side intake)
- Power supplies: Dual AC (redundant)
- Typical power consumption: 143W
- Maximum power consumption: 293W
- Form factor: 1 rack unit (1RU)
- Operating system: Cisco NX-OS
- License included: Base + LAN Enterprise (N3K-BAS1K9 + N3K-LAN1K9)

FAQs

Q: What licenses are included with the N3K-C3172PQ-BA-L3 bundle?
A: This bundle includes both the Base license (N3K-BAS1K9) and the LAN Enterprise license (N3K-LAN1K9), enabling full Layer 3 routing capabilities including BGP, OSPF, EIGRP, PIM-SM, and advanced multicast protocols.

Q: What is reversed airflow and why is it important?
A: Reversed airflow (port-side intake) means air enters through the front ports and exits through the rear fan tray and power supplies. This is ideal for cold-aisle containment data center designs, drawing cool air from the cold aisle and exhausting warm air to the hot aisle.

Q: Can the QSFP+ ports be used for 10G connectivity?
A: Yes, each of the 6x QSFP+ ports can operate in native 40 Gbps mode or be broken out into 4x 10 Gbps connections using appropriate breakout cables, providing flexibility for mixed-speed deployments.

Q: Is this switch suitable for low-latency applications?
A: Absolutely. The Nexus 3172PQ is a phy-less switch optimized for ultra-low latency (sub-microsecond), making it ideal for high-frequency trading, financial services, and other latency-sensitive workloads.

Q: Does this model support redundant power supplies?
A: Yes, the switch supports dual AC or DC power supplies for full redundancy. This bundle includes dual AC power supplies for high availability in mission-critical environments.

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