• Cisco N3K-C3548P-10GX silver switch with 48x10G SFP+ ports
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Cisco

Cisco N3K-C3548P-10GX | Nexus 3548-X 48-Port 10G SFP+ Switch, Ultra-Low Latency

N3K-C3548P-10GX

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Description

The Cisco N3K-C3548P-10GX Nexus 3548-X is a high-performance 1RU data center switch designed for ultra-low latency environments such as high-frequency trading, cloud infrastructure, and high-performance computing. With 48 fixed SFP+ ports supporting 1G and 10G speeds, this switch delivers 960 Gbps switching capacity and sub-600 nanosecond latency. Running Cisco NX-OS, it provides advanced Layer 2 and Layer 3 capabilities with VXLAN, VPC, and fabric extender support for modern data center architectures.

Features

Ultra-low latency merchant silicon architecture (sub-600ns)
- Line-rate Layer 2 and Layer 3 switching on all ports
- VXLAN support for network virtualization and overlay networks
- Virtual Port Channel (vPC) for high availability and redundancy
- Fabric Extender (FEX) support for simplified infrastructure
- Advanced routing protocols: OSPF, BGP, EIGRP, IS-IS
- Comprehensive QoS with 8 queues per port
- 4096 VLAN support with PVLAN, RSTP, MSTP
- Link aggregation with LACP (up to 32 groups)
- Hardware-based access control lists (ACLs)
- Precision Time Protocol (PTP) with 1-PPS timing port
- Hot-swappable redundant power supplies and fans
- Flexible airflow direction (port-side intake or exhaust)
- RESTful API and Python scripting support
- Integration with Cisco DCNM and ACI fabrics

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 x SFP+ ports supporting 1G and 10G speeds
- Switching capacity: 960 Gbps full duplex
- Forwarding rate: 720 Mpps
- Ultra-low latency: sub-600 nanoseconds port-to-port
- Packet buffer: 9 MB shared memory
- Flash memory: 4 GB bootflash
- Jumbo frames: up to 9216 bytes MTU
- Layer 2 and Layer 3 switching with NX-OS
- Dual redundant hot-swappable power supplies (AC or DC)
- Typical power consumption: 112W
- Form factor: 1RU rackmount (4.36 x 43.9 x 46.7 cm)
- Weight: 7.9 kg
- Port-side intake or exhaust airflow options
- Management: 1x 10/100/1000 Mbps, RS-232 console, 2x USB
- MAC address table: 64,000 entries

FAQs

Q: Does the N3K-C3548P-10GX support Power over Ethernet?
A: No, the N3K-C3548P-10GX does not support PoE. It is a data center switch with 48 SFP+ fiber ports designed for high-speed 10G connectivity, not for powering endpoint devices.

Q: What makes this switch suitable for low-latency applications?
A: The Nexus 3548-X uses a merchant silicon architecture without physical layer chips, achieving ultra-low latency under 600 nanoseconds. This makes it ideal for high-frequency trading, financial services, and real-time applications where every microsecond counts.

Q: What uplink options are available on this switch?
A: The N3K-C3548P-10GX has 48 SFP+ ports with no dedicated uplink ports. You can use any of the 48 ports as uplinks by installing 10G SFP+ transceivers. For 40G connectivity, consider the Nexus 3548-XL variant which includes QSFP+ ports.

Q: What software features does the switch support?
A: Running Cisco NX-OS, the switch supports advanced features including VXLAN overlay networks, Virtual Port Channels (vPC), Fabric Extender (FEX) connectivity, Layer 3 routing protocols, up to 4096 VLANs, MSTP, LACP, and comprehensive security with access control lists.

Q: Can this switch be used in existing Gigabit Ethernet networks?
A: Yes, all 48 SFP+ ports are backward compatible and support 1 Gigabit Ethernet operation using standard 1G SFP transceivers, allowing for flexible migration and integration with legacy infrastructure.

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