EN4093R - IBM EN4093R 10Gb Scalable Switch Switch

Name: EN4093R - IBM EN4093R 10Gb Scalable Switch Switch
Brand: IBM
SKU: EN4093R

EN4093R - IBM EN4093R 10Gb Scalable Switch Switch | US IT Hardware

Product overview

The Lenovo Flex System Fabric EN4093R 10Gb Scalable Switch is an embedded I/O module designed for blade chassis environments requiring high-performance, low-latency networking. It delivers 1.28 Tbps non-blocking switching capacity with 42 internal 10 Gb Ethernet ports and 14 SFP/SFP+ plus 2 QSFP+ external ports supporting 40 Gb connectivity. The switch achieves sub-microsecond port-to-port latency and 960 Mpps throughput, making it ideal for virtualized workloads and cloud infrastructure. It supports Layer 2/3 switching, OpenFlow SDN, and advanced features including virtual LAGs, FCoE transit, and VMready virtualization capabilities. The EN4093R scales up to eight switches per chassis with unified management, providing extreme flexibility for dynamic datacenter environments requiring both performance and scalability.

1.28 Tbps non-blocking switching with sub-microsecond latency
42x 10 Gb internal ports + 14x SFP/SFP+ + 2x QSFP+ external
Supports 48 vNICs with Layer 2/3, OpenFlow, and FCoE
960 Mpps throughput with 9 MB buffer and jumbo frame support
Stacks up to 8 switches with unified single-IP management
VMready certified for virtualized datacenter environments

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Featuring

Supported Protocols
Manufacturer part #	EN4093R
Brand	IBM
Condition	New
Model	EN4093R 10Gb Scalable Switch
Product Line	Flex System Fabric
Product Type	Embedded I/O module switch for blade chassis
Ethernet Speed	10 GbE; supports 40 GbE QSFP+
Port Licensing	Base: 24x 10GbE ports; Upgrade 1/2 for additional ports
MAC Address Table	Supports up to 128 static routes; 2,000 dynamic routes
Routing Protocols	RIP v1/v2, OSPF v2, BGP-4, VRRP

Compatible systems

Designed for Lenovo Flex System blade chassis

Lenovo Flex System
Model: Compute node chassis
Form factor: Blade chassis I/O module
Internal ports connect to 14 compute nodes (3 ports each)

Best for

Virtualized Datacenters
Supports up to 48 vNICs per chassis using CN4058S adapters with four EN4093R switches, delivering isolated, high-performance virtual networking with Layer 2/3 switching and QoS capabilities.
Cloud Infrastructure
Cloud-ready with SDN support, OpenFlow compatibility, and VMready features enabling dynamic workload management across 1.28 Tbps non-blocking fabric with full line-rate performance.
High-Performance Computing
Sub-microsecond latency and 960 Mpps throughput support demanding HPC applications requiring low-latency, high-bandwidth interconnects within blade chassis environments.
10/40 Gb Network Migration
Facilitates infrastructure upgrades with dual 40 Gb QSFP+ external ports and 14 SFP/SFP+ ports supporting flexible media types and active optical breakout cables for seamless transitions.
Storage Area Networks
FCoE transit switch operations and iSCSI support enable converged storage networking with Fibre Channel over Ethernet capabilities within virtualized environments.

Details

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Management Interface	Single IP address stacking up to 8 switches; OpenFlow SDN

Latency	Sub-microsecond port-to-port latency
Throughput	960 Mpps; up to 112 Mpps Layer 3
Switching Capacity	1.28 Tbps non-blocking full duplex

Power Supplies	Hot-swap redundant power from chassis

Form Factor	Flex System embedded I/O module
Status LEDs	Port status, power, system indicators

External Ports	14x SFP/SFP+ ports; 2x QSFP+ ports
Internal Ports	42x 10 Gb Ethernet ports to compute nodes

Frequently asked questions

What is the maximum number of compute nodes this switch can connect within a single chassis?

The EN4093R provides 42 internal 10 Gb Ethernet ports for direct compute node connectivity. When paired with CN4058S Virtual Fabric Adapters, up to four EN4093R switches in a single Flex System Enterprise Chassis can support 48 virtual NICs total, enabling high-density virtualized environments.

Does the EN4093R support 40 Gb Ethernet connectivity?

Yes. The switch includes 2 QSFP+ ports supporting 40 Gb Ethernet with multiple transceiver options: SR/LR4 transceivers, active optical cables (AOCs), and direct attach copper (DAC) cables. QSFP+ ports can also be configured as four 10 Gb ports using breakout cables for flexible external connectivity.

What is the port-to-port latency specification?

The EN4093R delivers sub-microsecond (less than 1 microsecond) port-to-port latency with cut-through switching architecture. This ultra-low latency is critical for latency-sensitive applications, HPC workloads, and real-time virtualized services requiring deterministic performance.

Can multiple EN4093R switches be managed as a single unit?

Yes. Up to eight EN4093R switches can be stacked and managed through a single IP address using the Lenovo Networking OS. This unified management simplifies operations while maintaining individual switch performance, enabling cost-effective scalability without additional management overhead.

What virtualization features does the EN4093R support?

The switch is VMready certified and supports Lenovo Virtual Fabric with per-vNIC performance optimization and isolation. It includes Layer 2/3 switching, virtual LAGs, VLAN tagging, QoS, and FCoE transit operations. OpenFlow SDN support enables dynamic workload management in cloud environments.

What external connectivity options are available?

External ports include 14x SFP/SFP+ ports supporting 1/10 Gb Ethernet and 2x QSFP+ ports supporting 40 Gb Ethernet. Media types include SR/LR transceivers, RJ-45 copper transceivers, active optical cables, and direct attach copper cables for flexible datacenter integration.

Is the EN4093R suitable for storage networking?

Yes. The switch supports FCoE (Fibre Channel over Ethernet) transit operations and iSCSI, enabling converged storage networking. Combined with its 1.28 Tbps throughput and sub-microsecond latency, it efficiently handles both compute and storage traffic in virtualized datacenters.

IBM EN4093R 10Gb Scalable Switch Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Interface/Ports

Frequently asked questions