NVIDIA Mellanox MSN2700-BS2RC 40GbE 1U Open Ethernet Switch with Cumulus Linux: This is a 1U Open Ethernet switch from the MSN2700 family configured for 40GbE-only operation, providing 32 QSFP+ ports in a standard-depth chassis. The "C" suffix denotes factory-loaded NVIDIA Cumulus Linux NOS for open networking, automation, and telemetry workflows. This is a leaf/aggregation Ethernet switch, not an InfiniBand or 100GbE-capable platform. Mellanox part number 920-9N101-00R4-0C0. This is a refurbished unit.
Engineering Context
The chassis provides 32 QSFP+ ports at 40GbE line rate with non-blocking forwarding. Cumulus Linux on this platform is a full Debian-based NOS supporting BGP-EVPN, VXLAN routing, MLAG and Ansible/NetQ automation. The chassis includes 2 hot-swappable AC power supplies for N+1 redundancy and an x86 management CPU. C2P (Connector-to-Power, reverse) airflow draws cool air from the port side toward the power supply side, suitable for hot-aisle deployments where the PSU side faces the hot aisle.
Deployment & Use Cases
40GbE leaf switching for HPC clusters and high-throughput compute farms, aggregation switching in mid-density data centers, MLAG pairs in enterprise core-distribution layers, BGP-EVPN VXLAN underlay/overlay deployments managed via Cumulus Linux and NetQ, and DevOps-driven networks where Ansible-based automation is preferred over CLI configuration.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSN2700-BS2RC (920-9N101-00R4-0C0)
Port Configuration: 32 × QSFP+
Ethernet Speed per Port: 40GbE
Form Factor: 1U
Chassis Depth: Standard
Airflow: C2P (Reverse, Connector-to-Power)
Power Supplies: 2 × AC, hot-swappable
Management CPU: x86
Pre-loaded OS: NVIDIA Cumulus Linux
Protocol: Ethernet only (40GbE)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA Mellanox QSFP+ optics and DAC cables (MC2210130 40GbE DAC, MC2210411 40GbE SR4 transceivers, MC6709309 40GbE AOC) and third-party QSFP+-compliant 40GbE optics. Not configured for 100GbE — this is a 40GbE-only platform. Not a VPI/InfiniBand switch. Rail kit is NOT included and must be ordered separately. Cumulus Linux license is preserved with the unit; license transfer rules per NVIDIA EULA apply when changing ownership. C2P airflow is fixed and not field-reversible — verify aisle orientation before installation.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS performs port-by-port link verification, Cumulus Linux boot validation, and PSU/fan diagnostics on every refurbished MSN2700 switch. Browse our full Mellanox Ethernet catalog at https://www.tes-itsolutions.com. Standard handling time is 1–3 business days.