How many 25GbE ports can the MSN2100-BB2FC provide via breakout?

Each of the 16 QSFP28 ports supports 4x 25GbE breakout, providing up to 64 x 25GbE connections from a single 1U switch.

Does the MSN2100-BB2FC support 100GbE or only 40GbE?

The QSFP28 ports support up to 100GbE each with appropriate transceivers. The switch was originally positioned as 40GbE but is capable of 100GbE per port via the Spectrum ASIC.

Is a rail kit included with the MSN2100-BB2FC?

No. This unit does not include a rail kit. A compatible 1U rail kit must be sourced separately if rack mounting is required.

NVIDIA Mellanox MSN2100-BB2FC: This is a Spectrum-based Open Ethernet switch in a 1U half-width (short-depth) form factor with 16 QSFP28 ports. Each port supports up to 100GbE, with the switch originally positioned as a 40GbE platform (upgradable to 100GbE via firmware). It ships with Cumulus Linux and uses P2C (power-to-connector) airflow. This is a managed Layer 2/3 Ethernet switch, not an InfiniBand switch.

Engineering Context

The MSN2100 is built on NVIDIA's first-generation Spectrum switching ASIC. The 16 QSFP28 ports each support 10GbE, 25GbE, 40GbE, and 100GbE speeds depending on the transceiver/cable inserted and firmware configuration. Each QSFP28 port also supports breakout to 4x 25GbE or 4x 10GbE using breakout cables. The x86 dual-core control processor runs Cumulus Linux with full Layer 2/3, EVPN/VXLAN, BGP, and automation support. The 1U short-depth chassis is designed for shallow racks, edge deployments, and colocation environments. P2C airflow draws cool air from the power supply (rear) side and exhausts toward the port (front) side. Dual hot-swap AC PSUs provide redundancy.

Deployment & Use Cases

100GbE Top-of-Rack: 16 QSFP28 ports in 1U for compact leaf-layer deployments.
Edge / Colocation: Short-depth chassis fits in shallow racks where standard switches do not fit.
Breakout Fabric: Each port breaks out to 4x 25GbE, providing up to 64 x 25GbE connections from a single 1U switch.
Open Networking: Cumulus Linux enables automation-first operations with Ansible, Puppet, and Salt.

Technical Specifications

Model: MSN2100-BB2FC
Switch ASIC: NVIDIA Spectrum
Ports: 16 x QSFP28 (up to 100GbE each)
Breakout: 4x 25GbE or 4x 10GbE per port
CPU: x86 dual-core
NOS: Cumulus Linux (pre-installed)
Airflow: P2C (Power to Connector)
Power: Dual hot-swap AC PSUs (redundant)
Form Factor: 1U short-depth rackmount
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS

Compatibility & Hard Constraints

Ethernet Only: Does not support InfiniBand.
Cumulus Linux: Ships with Cumulus Linux. For NOS flexibility, an ONIE variant is required.
Airflow Direction: P2C. Do not mix with C2P equipment in the same rack.
Spectrum Gen 1: Maximum per-port speed is 100GbE. Does not support 200GbE or 400GbE.
QSFP28 Optics Only: Accepts QSFP28 transceivers and DAC/AOC cables. QSFP56 and QSFP-DD are not compatible.
Rail Kit: Not included with this unit.

NVIDIA Mellanox® MSN2100-BB2FC 40GbE 1U Open Ethernet Switch ,16 QSFP28

Name: NVIDIA Mellanox® MSN2100-BB2FC 40GbE 1U Open Ethernet Switch ,16 QSFP28
SKU: MSN2100-BB2FC_Refurbished

SKU: MSN2100-BB2FC_Refurbished

€3,700.00

Quantity