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Cisco

Cisco N3K-C34180YC | 48x10/25G SFP28, uplinks: 6x40/100G QSFP28, no PoE, NX-OS L2/L3 Base, 1RU

SKU:N3K-C34180YC

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Description

Programmable 25G ToR switch with 48 SFP28 downlinks and 6 QSFP28 40/100G uplinks, delivering line‑rate L2/L3, VXLAN EVPN, and PTP in a compact 1RU design with redundant hot‑swap PSUs and fans.

Features

- 48x 10/25G SFP28 downlinks with 6x 40/100G QSFP28 uplinks
- VXLAN EVPN for modern leaf/spine fabrics
- PTP for precision timing workloads
- SFP28 backward compatibility with 10G SFP+
- QSFP28 4x25G breakout for flexible uplink designs
- Redundant, hot‑swap power and cooling with selectable airflow

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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FAQs

Technical Specifications

FAQs

Q: Do the SFP28 ports accept 10G SFP+ optics?
A: Yes. SFP28 ports are generally backward compatible with 10G SFP+ optics/cables; check the compatibility matrix for exact part numbers.

Q: Can QSFP28 uplinks be broken out to 25G?
A: Yes, QSFP28 uplinks commonly support 4x25G breakout with supported breakout cables or optics.

Q: Is VXLAN EVPN supported?
A: Yes, VXLAN with EVPN control plane is supported under NX‑OS, subject to feature licensing and software release.

Q: What airflow options are available?
A: Both front‑to‑back and back‑to‑front airflow SKUs exist; select PSU and fan direction to match datacenter design.

Q: What license tier is required for routing?
A: Base NX‑OS L2/L3 licensing covers core routing; certain advanced features may require additional licenses depending on software version.

Technical Specifications

- Form factor: 1RU fixed chassis
- Downlink ports: 48x SFP28 10/25GbE (backward compatible with 10G SFP+)
- Uplink ports: 6x QSFP28 40/100GbE (breakout 4x25G supported where applicable)
- Performance: nonblocking line‑rate switching on all ports
- Software: NX‑OS with advanced L2/L3 (BGP/OSPF/IS-IS, VRF, ACLs, QoS, PBR)
- Overlay: VXLAN with EVPN control plane
- Timing: IEEE 1588 PTP and NTP support
- Resiliency: dual hot‑swappable PSUs and replaceable fan trays
- Airflow: front‑to‑back or back‑to‑front options (model dependent)
- Operations: sFlow/NetFlow, streaming telemetry, NX‑API automation

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