• Cisco N3K-C3048-FD-L3 48-port 1G RJ45 switch with 4x 10G SFP+ uplinks
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Cisco

Cisco N3K-C3048-FD-L3 | Nexus 3000 48-Port Gigabit Switch, 4x 10G SFP+, Layer 3

N3K-C3048-FD-L3

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Description

The Cisco Nexus 3048 is a line-rate Gigabit Ethernet top-of-rack switch designed for data center deployments. Featuring 48 Gigabit Ethernet ports and 4x 10G SFP+ uplinks in a compact 1RU form factor, it delivers 176 Gbps switching capacity with full Layer 2 and Layer 3 capabilities. This bundle includes DC power supplies, forward airflow cooling, and LAN Enterprise licensing for advanced routing protocols.

Features

Full Layer 2 switching with VLAN support (4,096 VLANs)
- Comprehensive Layer 3 routing: BGP, OSPF, EIGRP, RIPv2, static routing
- Multicast routing: PIM-SM, SSM, IGMP, MSDP
- Link aggregation with LACP support
- Spanning Tree Protocol: RSTP, MST, PVST+
- Advanced security: ACLs, DHCP snooping, Dynamic ARP Inspection, IP Source Guard
- Quality of Service (QoS) with 8 hardware queues
- Network monitoring: SPAN, ERSPAN, NetFlow
- Control plane policing and storm control
- Cisco NX-OS operating system
- Hot-swappable redundant power supplies and fans
- Energy Efficient Ethernet (IEEE 802.3az)
- OpenFlow support with Cisco Nexus Data Broker
- Line-rate performance on all ports
- Sub-microsecond latency

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 10/100/1000BASE-T RJ-45 ports
- 4x 1/10G SFP+ uplink ports
- Switching capacity: 176 Gbps
- Forwarding rate: 132 Mpps
- Form factor: 1RU rack-mountable
- MAC address table: 128,000 entries
- Jumbo frame support: up to 9,216 bytes
- Memory: 8 GB RAM
- Flash storage: 2 GB
- Power supply: 2x 400W DC PSUs (redundant)
- Airflow: Forward airflow (port-side exhaust)
- Dimensions: 4.4 x 43.9 x 50.5 cm (H x W x D)
- Operating temperature: 0°C to 40°C
- Management: CLI, SNMP, Cisco DCNM, NX-OS

FAQs

Q: What licenses are included with the N3K-C3048-FD-L3?
A: This bundle includes both the Base license and LAN Enterprise license, enabling full Layer 3 routing capabilities including BGP, OSPF, EIGRP, and advanced features out of the box.

Q: What is the difference between forward and reverse airflow models?
A: The FD model features forward airflow (port-side exhaust), where air enters through the fan tray and power supplies and exits through the front ports. This is ideal for hot aisle/cold aisle data center deployments with specific airflow requirements.

Q: Does this switch support PoE?
A: No, the Nexus 3048 models do not support Power over Ethernet. They are designed as high-performance data center top-of-rack switches for server connectivity rather than endpoint device power delivery.

Q: What uplink speeds are supported on the SFP+ ports?
A: The 4x SFP+ ports support both 1G and 10G speeds, providing flexible uplink connectivity using SFP or SFP+ transceivers, as well as 10G direct-attach copper (DAC) cables.

Q: Is this switch suitable for data center deployments?
A: Yes, the Nexus 3048 is specifically designed as a top-of-rack switch for data centers, offering line-rate performance, low latency, comprehensive Layer 3 routing, and integration with Cisco NX-OS and DCNM management platforms.

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