IBM Flex System Networking

About IBM Flex System Fabric

IBM can help you reduce cost, complexity and risk with IBM Flex System Fabric – a portfolio of high performance networking products that can help simplify connectivity of your data and storage infrastructure. The portfolio includes support for Ethernet, Fibre Channel over Ethernet (FCoE) and even Fibre Channel protocols. Flex System Fabric also supports extraordinary convergence of NAS, iSCSI and even FCoE where the Fibre Channel can be broken out directly in the chassis or upstream in the network. The portfolio offers easy standards-based interoperability with your existing networking environment, including Cisco, Brocade, Juniper and other networking infrastructures. Read the brochure (PDF, 639KB).

Accelerate your network fabric deployment:

IBM® Flex System® Interconnect Fabric

The Flex System Interconnect Fabric solution is designed to meet client needs by providing a simple Ethernet fabric cluster that accelerates deployment, simplifies management, supports dynamic scalability, increases reliability, availability and security in medium-to-large point of delivery (POD) deployments.

IBM Flex System Fabric products:

IBM Flex System Fabric SI4093 System Interconnect Module

This interconnect module is designed for clients looking to reduce the management complexity of networking switches. The module ships preconfigured in end host mode to provide a simple deployment and management experience while maintaining the performance of intra-chassis connectivity.

IBM Flex System Fabric EN4093R 10Gb Scalable Switch

This switch is designed for Ethernet networking for LAN or NAS/iSCSI storage connectivity and provides one of the lowest latency solutions in the market today. And by supporting the FCoE protocol, customers can transmit converged packets from chassis to Top-of-Rack. This switch can also be configured in “easy connect” mode making it transparent to upstream network administrators while providing the flexibility to reconfigure into Layer 2 or Layer 3 mode in the future with no additional costs. For those looking at Software Defined Networking, IBM offers industry-standard OpenFlow capabilities with the EN4093R.

IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch

This switch provides exceptional flexibility and is ideal for:

1 Based on the IBM Flex System Fabric 10Gb Scalable Switch running FCoE protocol compared to HP Flex 10 and 8Gb SAN switches and adapters. IBM requires two EN4093 switch modules versus HP’s solution which requires two Flex 10 switch modules + 2 x 8Gb SAN switch modules + fourteen 8Gb HBA. Prices obtained publicly from and, as of July 2013.

2 Based on SI4093 base plus upgrade 1 and 2 list price x 2 = $53.194, which is 41.8% less expensive than HP Virtual Connect Flex-10/10D x 6 = $75,450. SI4093 data sheet 64x10Gb ports (640Gb) vs. HP data sheet 26x10Gb ports (260Gb) => 2.46x more bandwidth. - HP Link -

3 Based on double-dense IBM Flex System x222 Compute Nodes with 7:1 oversubscription.

Contact Lenovo for x86-based systems

Contact IBM for POWER and/or hybrid (POWER + x86) systems

Lenovo acquires IBM x86 systems

These IBM x86 products are now products of Lenovo in the U.S. and other countries. IBM will host x86-related content on until migrated to Lenovo. During the transition, please interpret references to IBM in relation to transitioned products as Lenovo.


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