• Black hpe s2t77a sn3420m data centre switch with perforated front panel and 48x 25gbe sfp28 ports and 12x qsfp28
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HPE

HPE S2T77A | SN3420M 48-Port 25GbE SFP28 Data Centre Switch, 12x QSFP28

HPE S2T77A | SN3420M 48-Port 25GbE SFP28 Data Centre Switch, 12x QSFP28

S2T77A

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Description

The HPE SN3420M is a high-density 25GbE data centre switch designed for spine-leaf and top-of-rack deployments demanding maximum bandwidth and open networking flexibility. Featuring 48x SFP28 25GbE ports and 12x QSFP28 100GbE uplink ports, it delivers the port density and throughput required for modern hyperconverged infrastructure, high-performance compute clusters, and cloud-scale environments. The Power to Connector (front-to-rear) airflow configuration suits standard hot-aisle/cold-aisle data centre designs, and the switch ships with NVIDIA Cumulus Linux for a fully programmable, open NOS experience.

Cumulus Linux enables network-as-code automation, BGP-unnumbered routing, VXLAN/EVPN fabric support, and seamless integration with DevOps toolchains such as Ansible, Puppet, and Chef — reducing operational complexity across large-scale deployments. Need it fast? iptrading.com.au delivers across Australia — shop now.

Features

- 48x 25GbE SFP28 ports deliver line-rate server connectivity for dense data centre workloads
- 12x 100GbE QSFP28 uplinks provide high-bandwidth spine or inter-switch connectivity
- NVIDIA Cumulus Linux enables open, programmable networking with full L2/L3 feature support
- BGP-unnumbered and VXLAN/EVPN support simplifies large-scale fabric deployments
- Native integration with DevOps automation tools: Ansible, Puppet, Chef, and Salt
- NVIDIA NetQ telemetry provides real-time visibility, troubleshooting, and network health monitoring
- Power to Connector (front-to-rear) airflow aligns with standard hot-aisle/cold-aisle data centre designs
- Redundant hot-swap power supplies and fans minimise downtime risk
- Non-blocking switching architecture ensures consistent line-rate performance under full load
- Supports ECMP, OSPF, BGP, 802.1Q VLANs, LACP, and MLAG for flexible network design

Warranty

Hewlett Packard Enterprise (HPE) offers a standard limited hardware warranty on its products, with coverage periods varying by product line. For instance, HPE ProLiant servers typically come with a 1 to 3-year limited warranty, while other products may have different durations.
Extended Warranty Options via IP Trading:
IP Trading offers tailored extended warranty solutions and support packages for HPE products, ensuring your IT infrastructure remains protected beyond the standard warranty period. Contact our team to explore options that align with your organisation's needs.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- 48x SFP28 25GbE downlink ports
- 12x QSFP28 100GbE uplink ports
- Airflow direction: Power to Connector (front-to-rear)
- Operating System: NVIDIA Cumulus Linux
- Form factor: 1U rack-mount
- Switching capacity: up to 3.6 Tbps (estimated based on port configuration)
- Forwarding rate: line-rate non-blocking architecture
- Management: CLI, REST API, and Cumulus NetQ telemetry support
- Redundant hot-swap power supplies and fans supported
- Standards: IEEE 802.1Q, 802.3, ECMP, BGP, OSPF, VXLAN/EVPN

FAQs

Q: What operating system does the HPE SN3420M ship with?
A: The SN3420M ships pre-loaded with NVIDIA Cumulus Linux, an open, Debian-based network operating system that supports automation via Ansible, Puppet, and Chef, as well as BGP-unnumbered, VXLAN/EVPN, and NetQ telemetry.

Q: What is the port configuration of the SN3420M?
A: It provides 48x SFP28 25GbE ports for server connectivity and 12x QSFP28 100GbE ports for spine or inter-switch uplinks, making it ideal for top-of-rack and spine-leaf architectures.

Q: What does 'Power to Connector' airflow mean?
A: Power to Connector (P2C) means air flows from the power supply side (rear) through to the port/connector side (front), which aligns with hot-aisle/cold-aisle cooling designs where exhaust exits into the hot aisle.

Q: Is the HPE SN3420M suitable for hyperconverged infrastructure (HCI)?
A: Yes. The high port density, 25GbE server-facing ports, and 100GbE uplinks make it an excellent top-of-rack switch for HCI platforms such as HPE SimpliVity, Nutanix, and VMware vSAN environments.

Q: Can I purchase the HPE S2T77A in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) is an Australian B2B IT hardware reseller stocking HPE networking products including the SN3420M. We deliver nationwide — contact us for pricing, lead times, and volume enquiries.

Q: Does NVIDIA Cumulus Linux on this switch support network automation?
A: Yes. Cumulus Linux is fully compatible with industry-standard automation frameworks including Ansible, Puppet, Chef, and Salt, and supports NCLU/NVUE CLIs, REST APIs, and NVIDIA NetQ for real-time network telemetry and troubleshooting.

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