• Black nvidia a100 gpu server backside with multiple pcie slots and network ports for hpe s2t81a sn4700m data switch
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HPE

HPE S2T81A | SN4700M 400GbE 32-Port QSFP-DD Data Centre Switch, P2C Airflow, NVIDIA Cumulus

HPE S2T81A | SN4700M 400GbE 32-Port QSFP-DD Data Centre Switch, P2C Airflow, NVIDIA Cumulus

S2T81A

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Description

The HPE SN4700M is a high-density 400GbE data centre switch purpose-built for hyperscale and enterprise spine-layer deployments. Featuring 32 x QSFP-DD ports capable of 400GbE, it delivers massive east-west bandwidth for AI, HPC, and cloud workloads. The Power-to-Connector (P2C) airflow design ensures compatibility with hot-aisle/cold-aisle containment architectures, while the integrated NVIDIA Cumulus Linux NOS provides a standards-based, open networking operating system with full programmability via NetQ and automation toolchains.

Built on the NVIDIA Spectrum-3 ASIC platform, the SN4700M supports advanced features including ECMP, EVPN/VXLAN fabric overlays, and deep-buffer capabilities suited to lossless storage and GPU cluster interconnects. It is ideal for organisations building modern disaggregated data centre fabrics. Order now at iptrading.com.au — trusted by Australian IT professionals.

Features

- 32 x QSFP-DD 400GbE ports with flexible breakout for 100GbE/25GbE density
- NVIDIA Cumulus Linux included — open, programmable NOS with full Linux toolchain support
- NVIDIA Spectrum-3 ASIC delivering 12.8 Tbps non-blocking switching capacity
- Supports BGP, OSPF, ECMP, VXLAN, EVPN for scalable spine-leaf fabric deployments
- Lossless Ethernet support via PFC and ECN for storage and HPC workloads
- P2C (Power-to-Connector) airflow for hot-aisle containment compatibility
- Redundant hot-swappable PSUs and fan trays for high availability
- NVIDIA NetQ integration for real-time network telemetry and visibility
- Automation-ready: Ansible, Puppet, Chef, and REST API support via Cumulus Linux
- 1U rack-mount chassis — optimised for high-density data centre deployments

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

- 32 x QSFP-DD ports supporting 400GbE, 2 x 100GbE, or 4 x 25GbE breakout per port
- Total switching capacity: up to 12.8 Tbps
- Forwarding rate: up to 4.76 Bpps
- ASIC: NVIDIA Spectrum-3
- Network OS: NVIDIA Cumulus Linux (included)
- Airflow: Power-to-Connector (P2C) — front-to-back
- Redundant hot-swappable power supplies
- Redundant hot-swappable fan modules
- 1U rack-mount form factor
- Management: Out-of-band RJ45 management port, RS-232 console port
- Protocols: BGP, OSPF, ECMP, VXLAN, EVPN, PFC, ECN

FAQs

Q: What operating system does the HPE SN4700M run?
A: The SN4700M ships with NVIDIA Cumulus Linux, an open, standards-based network operating system that supports automation via Ansible, Puppet, and Chef, and integrates with NVIDIA NetQ for real-time telemetry and troubleshooting.

Q: What is the port configuration of the SN4700M?
A: The switch features 32 x QSFP-DD ports, each capable of operating at 400GbE natively or broken out to 2 x 200GbE, 2 x 100GbE, 4 x 100GbE, or 4 x 25GbE, providing exceptional density and flexibility for spine or leaf deployments.

Q: What does 'Power to Connector' (P2C) airflow mean?
A: P2C airflow means cooling air enters through the power supply side of the chassis and exhausts out the port/connector side. This aligns with hot-aisle containment data centre designs where port-side faces the hot aisle.

Q: Is the SN4700M suitable for AI and GPU cluster networking?
A: Yes. The SN4700M's high-density 400GbE ports, lossless Ethernet support (PFC/ECN), and NVIDIA Spectrum-3 ASIC make it well suited for GPU-to-GPU interconnects and AI/ML training cluster fabrics requiring high bandwidth and low latency.

Q: Can I purchase the HPE SN4700M in Australia through IP Trading?
A: Yes. IP Trading (iptrading.com.au) supplies HPE data centre networking products to Australian IT professionals and enterprises. Contact us for pricing, lead times, and volume licensing enquiries.

Q: Does the SN4700M support EVPN/VXLAN for multi-tenant overlay fabrics?
A: Yes. Running NVIDIA Cumulus Linux, the SN4700M natively supports BGP-EVPN with VXLAN encapsulation, enabling scalable multi-tenant overlay fabrics for modern data centre and cloud environments.

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