• Cisco N9K-C9348GC-FX3PH 48-port Gigabit Ethernet switch
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Cisco N9K-C9348GC-FX3PH | Nexus 9300-FX3 48-Port Gigabit Switch, 4x 25G SFP28, 2x 100G QSFP28

N9K-C9348GC-FX3PH

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Description

The Cisco Nexus 9348GC-FX3PH is a high-performance 1RU data center switch designed for modern enterprise and cloud environments. It features 40 ports supporting 10/100/1000 Mbps and 8 additional 10/100 Mbps PoE-capable ports, delivering up to 696 Gbps switching capacity and over 517 Mpps forwarding rate. With flexible uplinks including 4x 10/25G SFP28 and 2x 40/100G QSFP28 ports, this switch provides scalable connectivity for leaf-spine architectures and supports both Cisco ACI and NX-OS deployment modes with advanced telemetry, security, and automation capabilities.

Features

Cisco CloudScale ASIC architecture for high-performance forwarding and telemetry
- Wire-rate MACsec encryption on all ports 1 Gbps and above for data-in-transit security
- Support for both Cisco ACI and NX-OS deployment modes
- Advanced telemetry and streaming analytics for real-time network visibility
- Intelligent buffer management with Approximate Fair Dropping (AFD) and Elephant Trap
- Flexible TCAM with up to 2 million shared forwarding table entries on FX3 models
- Comprehensive Layer 2 features: VLANs, STP, LACP, VPC (Virtual Port Channel)
- Layer 3 routing with optional license: OSPF, BGP, EIGRP, PIM, VXLAN
- VXLAN hardware VTEP support for network virtualization and overlay networks
- IEEE 802.1Qbb Priority Flow Control (PFC) for lossless Ethernet
- Data Center Bridging (DCB) support
- Comprehensive QoS and traffic management
- Hot-swappable redundant power supplies and fans
- Python scripting and automation support
- REST API and model-driven programmability
- Zero-touch provisioning (POAP)

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

48 Total Ports: 40x 10/100/1000BASE-T RJ45 + 8x 10/100BASE-T RJ45 (half-duplex, PoE/PoE+/PoE++ capable)
- Uplink Ports: 4x 1/10/25G SFP28 + 2x 40/100G QSFP28
- Switching Capacity: 696 Gbps
- Forwarding Rate: 517 Mpps
- Layer 3 Capable (requires license)
- Power over Ethernet: Supported on last 8 ports (PoE, PoE+, PoE++)
- Form Factor: 1RU fixed-configuration switch
- Operating Modes: Cisco ACI or NX-OS
- Memory Architecture: CloudScale ASIC technology
- Management: CLI, NX-OS, ACI, SNMP, Telemetry
- Power Supply Options: 350W AC, 440W DC, 500W AC, 650W AC (sold separately)
- Redundant Power Supply Support: Yes
- MACsec Support: Wire-rate encryption on all 1G+ ports
- Typical Power Consumption: 178W

FAQs

Q: What is the difference between the FX3PH model and standard FX3 models?
A: The FX3PH variant includes Power over Ethernet capability on the last 8 ports, supporting PoE, PoE+, and PoE++ standards. These 8 ports are limited to 10/100 Mbps half-duplex operation, while the first 40 ports support full-duplex 10/100/1000 Mbps. This makes the FX3PH ideal for powering IP phones, wireless access points, and IoT devices directly from the switch.

Q: Does this switch require a license for Layer 3 functionality?
A: Yes, the N9K-C9348GC-FX3PH ships with comprehensive Layer 2 features by default. To enable Layer 3 routing capabilities including IP unicast and IP multicast, you must purchase and install an additional Cisco NX-OS license. Licensing is available in both perpetual and subscription models.

Q: Can this switch be used in both ACI and NX-OS modes?
A: Yes, the Nexus 9348GC-FX3PH supports both Cisco Application Centric Infrastructure (ACI) mode and traditional NX-OS standalone mode. The operating mode is configured during initial setup. ACI provides intent-based automation and centralized policy management, while NX-OS offers traditional CLI-based configuration and management.

Q: What uplink breakout options are supported?
A: The 4x SFP28 ports support 1G, 10G, or 25G speeds per port. The 2x QSFP28 ports support 40G or 100G operation. These flexible uplink options enable seamless migration from 10G to 25G access layer speeds and from 40G to 100G aggregation, protecting your infrastructure investment as bandwidth demands grow.

Q: Is this switch suitable for AI/ML workloads?
A: Yes, the 9348GC-FX3PH is built on Cisco CloudScale technology with hardware capabilities designed for AI/ML applications. It provides low latency (sub-microsecond forwarding), advanced telemetry for network visibility, intelligent buffer management, and congestion control mechanisms that are essential for distributed AI/ML training and inference workloads in modern data centers.

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