What is the switching capacity and port configuration of MSN2100-CB2FO?

The MSN2100-CB2FO provides 3.2Tb/s full-duplex switching capacity with 16 QSFP28 ports operating at 100GbE. Ports support breakout to up to 64x10/25GbE or 32x50GbE, enabling flexible connectivity for spine/ToR roles with non-blocking wire-speed forwarding across all speeds.

What latency performance does this switch deliver?

Port-to-port latency is under 300ns for 100GbE traffic with true cut-through switching. Flat latency across L2/L3 ensures consistent low-delay performance for storage, HPC, and real-time applications without head-of-line blocking.

Is the MSN2100-CB2FO suitable for open networking environments?

Yes, it includes ONIE bootloader for installing MLNX-OS, Cumulus Linux, or other ONIE-compatible NOS. Supports SDN via OpenFlow, in-band telemetry, and embedded Puppet agent for automated deployments in white-box data centers.

What power efficiency and cooling features are included?

Consumes under 6W per 100GbE port with 2 hot-swappable AC PSUs and P2C airflow. Short-depth 1U chassis (20" depth) with four fans enables side-by-side mounting in standard racks, optimizing density and efficiency.

What management and monitoring capabilities does it offer?

Features NEO, 100/1000M management port, serial console, SNMP v1-3, syslog, RADIUS/TACACS+/LDAP, IPv4/IPv6, web UI, and streaming telemetry. Hardware-accelerated histograms track queue depths for proactive network health monitoring.

Can it scale for large data center deployments?

Side-by-side installation allows up to 128x100GbE ports in 1RU. High port density and 256K shared forwarding entries support massive scale from single racks to thousands of nodes in leaf-spine fabrics.

MSN2100-CB2FO - Mellanox MSN2100-CB2FO 16x100GbE 3.2Tb/s 1U Spectrum Switch

Name: Mellanox MSN2100-CB2FO 16x100GbE 3.2Tb/s 1U Spectrum Switch
Brand: Mellanox
SKU: MSN2100-CB2FO

MSN2100-CB2FO - Mellanox MSN2100-CB2FO 16x100GbE 3.2Tb/s 1U Spectrum Switch | US IT Hardware

Product overview

The NVIDIA Mellanox MSN2100-CB2FO is a high-performance 1U open Ethernet switch from the SN2100 Spectrum series, designed for demanding data center environments. Powered by the Spectrum ASIC, it features 16 QSFP28 ports supporting 100GbE speeds with flexible breakout to 10/25/40/50/56GbE, delivering 3.2Tb/s switching capacity and 2.38Bpps forwarding rate. Its short-depth form factor enables side-by-side installation for up to 128 ports per RU, ideal for spine and top-of-rack (ToR) deployments. Key benefits include sub-300ns port-to-port latency, zero packet loss, line-rate performance across all packet sizes, and lowest power consumption under 6W per port. Equipped with ONIE bootloader, x86 2-core CPU, 2 redundant AC PSUs, P2C airflow, and comprehensive management via MLNX-OS or SDN options like OpenFlow. Supports advanced features such as in-band telemetry, RoHS6 compliance, and rail kit compatibility (MTEF-KIT-D sold separately). Perfect for storage, database, cloud, and HPC applications requiring scalable, low-latency east-west traffic.

3.2Tb/s switching capacity with full line-rate performance.
16x QSFP28 ports support 100GbE and breakout to 10/25/40GbE.
Sub-300ns port-to-port latency for cut-through forwarding.
2.38Bpps forwarding rate handles mixed packet sizes efficiently.
ONIE bootloader enables MLNX-OS and SDN compatibility.
Short-depth 1U design scales to 128 ports per rack unit.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Forwarding Entries
Manufacturer part #	MSN2100-CB2FO
Brand	Mellanox
Condition	New
Model	SN2100
Buffer	Fully shared packet buffer
Rail Kit	MTEF-KIT-D separate
Compliance	RoHS6, CB, CE, FCC
Management	100/1000Base-T, serial, in-band
Product Line	Spectrum SN2100 Series
Product Type	100GbE Open Ethernet Switch
Layer Support	L2/L3

Compatible systems

ONIE-based open switch compatible with major server platforms and NOS via standard QSFP28 optics/cables.

Any x86 Servers
Form factor: 1U Rack
Full rack connectivity via QSFP28 to SFP+/QSFP+ breakouts.

Best for

Data Center Spine
High-density 100GbE spine layer scaling to 128 ports/RU for leaf-spine architectures with full non-blocking throughput.
Top-of-Rack (ToR)
Connects servers at 10-100GbE speeds with low latency and flexible port breakout for rack-level aggregation.
Cloud Networking
SDN-ready with ONIE and OpenFlow support for programmable overlays in multi-tenant cloud environments.
HPC Clusters
Sub-300ns latency and 3.2Tb/s capacity enable ultra-low latency east-west traffic in high-performance computing.
Storage Networks
Zero packet loss and line-rate performance accelerate NVMe-oF and distributed storage fabrics.
Enterprise Data Centers
Short-depth design fits standard racks side-by-side, maximizing port density in space-constrained deployments.

Details

Shipping, warranty & returns

Customer reviews

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Latency	300ns port-to-port cut-through
Forwarding Rate	2.38Bpps (4.76Bpps noted variant)
Switching Capacity	3.2Tb/s full duplex

Weight	4.54kg (10lb)
Dimensions	1.7x7.9x20in, 10lb
Form Factor	1U rackmount, short depth 20in

Airflow	Port-to-Connector (P2C)
Operating Temp	0-40°C

Mellanox MSN2100-CB2FO 16x100GbE 3.2Tb/s 1U Spectrum Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Processor

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions

Ports	16x QSFP28
Port Speeds	100/56/50/40/25/10GbE per port