• Cisco N3K-C3548P-10G switch with 48x10G SFP+ ports, silver-black design
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Cisco

Cisco N3K-C3548P-10G | Nexus 3500 48-Port 10G SFP+ Switch, Ultra-Low Latency

N3K-C3548P-10G

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Description

The Cisco Nexus 3548 N3K-C3548P-10G is a high-performance 1RU data center switch designed for ultra-low latency applications. With 48 fixed 10G SFP+ ports and 960 Gbps switching capacity, it delivers line-rate Layer 2 and Layer 3 switching ideal for high-frequency trading, cloud environments, and leaf-spine architectures. Running Cisco NX-OS, this PHY-less design ensures sub-microsecond latency and low power consumption for demanding enterprise deployments.

Features

PHY-less architecture for ultra-low latency (sub-microsecond)
- Line-rate Layer 2 and Layer 3 switching
- Comprehensive VLAN support: up to 4096 VLANs
- Spanning Tree Protocols: RSTP (512 instances), MSTP (64 instances)
- IEEE 802.1Q VLAN trunking
- Link Aggregation Control Protocol (LACP)
- Unidirectional Link Detection (UDLD)
- Port mirroring and Switched Port Analyzer (SPAN)
- Access Control Lists (ACLs) for security
- Storm control and rate limiting
- Quality of Service (QoS) with hardware-based classification
- Authentication, Authorization, and Accounting (AAA)
- SNMP v1/v2c/v3 management
- Cisco NX-OS with XML interface and CLI
- Hot-swappable redundant power supplies and fans
- Energy-efficient design with low power consumption
- Supports Virtual Port Channels (vPCs) with additional licensing
- VXLAN gateway capabilities for overlay networking
- Flexible deployment with AC or DC power options

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 (1 or 10 Gbps)
- Switching capacity: 960 Gbps
- Forwarding rate: 720 Mpps (million packets per second)
- Ultra-low latency PHY-less architecture
- Layer 2 and Layer 3 switching capabilities
- 1RU rack-mountable form factor
- Dimensions: 1.72 x 17.3 x 18.38 inches (4.36 x 43.9 x 46.7 cm)
- Dual redundant hot-swappable power supplies (400W AC or DC)
- Four hot-swappable fans (3+1 redundant)
- Port-side exhaust and port-side intake airflow options
- Jumbo frame support up to 9216 bytes
- 1x 10/100/1000 Mbps management port
- 1x RS-232 serial console port
- USB port for configuration and firmware
- Operating system: Cisco NX-OS Software

FAQs

Q: Does the N3K-C3548P-10G support PoE?
A: No, the N3K-C3548P-10G does not support Power over Ethernet (PoE). This is a base model focused on high-speed data switching. If you require PoE capabilities, consider models with PoE designation in their SKU.

Q: What licensing is required for Layer 3 routing?
A: The N3K-C3548P-10G includes comprehensive Layer 2 features by default. For Layer 3 IP unicast and multicast routing, you need to install additional licenses: N3548-BAS1K9 (Base License) and optionally N3548-LAN1K9 (LAN Enterprise License) for advanced Layer 3 features.

Q: What applications is this switch best suited for?
A: The Nexus 3548 excels in ultra-low latency environments including high-frequency trading (HFT), high-performance computing (HPC), data center top-of-rack deployments, leaf-spine architectures, and cloud infrastructure where sub-microsecond latency is critical.

Q: Can this switch support 40G connectivity?
A: Yes, the N3K-C3548P-10G can support 40 Gigabit Ethernet by combining four sequential SFP+ interfaces into a logical 40G port. However, it does not have dedicated QSFP+ uplink ports—40G is achieved through port grouping.

Q: Is the N3K-C3548P-10G compatible with both forward and reverse airflow?
A: Yes, the switch supports both port-side exhaust (forward airflow) and port-side intake (reverse airflow) configurations. You must select the appropriate power supplies and fan modules matching your airflow direction during deployment.

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