NVIDIA Mellanox MSN3700-CS2FO Spectrum-2 32-Port 100GbE 1U Open Ethernet Switch: This is a 1U fixed-configuration open Ethernet switch built on the NVIDIA Spectrum-2 ASIC, with 32 QSFP28 ports operating at 100GbE per port. It ships with the ONIE (Open Network Install Environment) bootloader, allowing the operator to install a network operating system of choice (Cumulus Linux, NVIDIA Onyx, SONiC, etc.). Airflow direction is P2C (Power-to-Connector). It is NOT a managed appliance with a vendor-locked NOS pre-installed. This unit is in NEW condition.
Engineering Context
The Spectrum-2 ASIC delivers 6.4 Tb/s of switching capacity and supports zero-packet-loss forwarding under typical data-center microburst patterns. Each of the 32 QSFP28 ports operates at 100GbE (4×25G NRZ); ports can also be configured for 50GbE, 40GbE, 25GbE, or 10GbE depending on transceiver and split-cable choice. The platform exposes hardware telemetry for tail-latency monitoring (What-Just-Happened), supports VXLAN and EVPN in hardware on supported NOS, and has an x86 control-plane CPU running ONIE for OS provisioning. The chassis includes dual hot-swappable AC PSUs and hot-swappable fan modules.
Deployment & Use Cases
Top-of-Rack and leaf switching in 100GbE leaf-spine fabrics. AI/ML training pods (e.g., DGX-style GPU server interconnect) running RoCE v2 with PFC and ECN. NVMe-oF storage networks. Disaggregated SONiC deployments in hyperscale and cloud edge. Telemetry-driven network operations using gNMI streaming. Multi-tenant cloud overlays using EVPN-VXLAN.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSN3700-CS2FO
ASIC: NVIDIA Spectrum-2
Switching Capacity: 6.4 Tb/s
Ports: 32 × QSFP28 (100GbE per port)
Port Speeds (per port): 100/50/40/25/10GbE
NOS: ONIE bootloader (install Cumulus, Onyx, SONiC, etc.)
Control CPU: x86
Airflow: P2C (Power-to-Connector)
Power: Dual hot-swappable AC PSUs
Form Factor: 1U Rackmount, rail kit included
Condition: NEW
Compatibility & Hard Constraints
Compatible with NVIDIA/Mellanox QSFP28 DACs, AOCs, and optical transceivers, and with third-party QSFP28 modules supported by the chosen NOS. ONIE-shipped units do NOT include a pre-installed NOS — the operator must install Cumulus Linux, NVIDIA Onyx, SONiC, or another ONIE-compatible NOS. Airflow is P2C only; verify rack hot-aisle/cold-aisle orientation matches before deployment. Does NOT include 400GbE ports — for 400G use Spectrum-3 (SN4000 series). The CS2FO suffix denotes this airflow and PSU SKU; mixed-airflow racks require careful planning.
Why Choose T.E.S IT-SOLUTIONS
This unit is supplied in NEW condition with full inspection by T.E.S IT-SOLUTIONS. We ship globally with 1–3 business day handling and provide deployment consultation for SONiC, Cumulus, and Onyx fabrics.