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IBM Flex System CN4054/CN4054R 10Gb Virtual
Fabric Adapters
IBM Redbooks Product Guide
The IBM Flex System™ CN4054 and CN4054R 10Gb Virtual Fabric Adapters are 4-port 10Gb converged
network adapters (CNA) for Intel processor-based compute nodes that support Ethernet, iSCSI, and
FCoE. The adapters support up to eight virtual NIC (vNIC) devices, where each physical 10 GbE port can
be divided into four virtual ports with flexible bandwidth allocation. The CN4054 Virtual Fabric Adapter
Upgrade adds FCoE and iSCSI hardware initiator functionality to either adapter. The CN4054R adds
support for compute nodes with the Intel Xeon E5-2600 v2 and v3 processors.
Figure 1 shows the adapters (they have the same physical appearance).
Figure 1. IBM Flex System CN4054 10Gb Virtual Fabric Adapter
Did you know?
This CN4054 is based on industry-standard PCIe architecture and offers the flexibility to operate as a
Virtual NIC Fabric Adapter. Because this adapter supports up to 16 virtual NICs on a single quad-port
Ethernet adapter, you see benefits in cost, power/cooling, and data center footprint by deploying less
hardware. Compute nodes like the x240 support up to two of these adapters for a total of 32 virtual NICs
per system.
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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Ordering information
IBM Flex System is a new category of computing that integrates multiple server architectures, networking,
storage, and system management capability into a single system that is easy to deploy and manage. IBM
Flex System has full built-in virtualization support of servers, storage, and networking to speed
provisioning and increased resiliency. In addition, it supports open industry standards, such as operating
systems, networking and storage fabrics, virtualization, and system management protocols, to easily fit
within existing and future data center environments. IBM Flex System is scalable and extendable with
multi-generation upgrades to protect and maximize IT investments.
Table 1. Ordering information and feature codes
Description
Part number Feature code
(x-config)
Feature code
(e-config)
IBM Flex System CN4054 10Gb Virtual Fabric Adapter
90Y3554
A1R1
1759
IBM Flex System CN4054R 10Gb Virtual Fabric Adapter
00Y3306
A4K2
A4K2
IBM Flex System CN4054 Virtual Fabric Adapter Upgrade*
90Y3558
A1R0
1760
* Added FCoE and iSCSI functionality to CN4054 or CN4054R; One upgrade needed per adapter
The adapter part numbers include the following items:



One adapter
Documentation CD
Important Notices flyer
The IBM Flex System CN4054 and CN4054R 10Gb Virtual Fabric Adapters can be upgraded to run
storage protocols iSCSI and FCoE by applying the upgrade licence, IBM Flex System CN4054 Virtual
Fabric Adapter Upgrade, part number 90Y3558.
Features
The adapters have these features:

Four-port 10 Gb Ethernet adapter

Two ASICs per adapter:


CN4054: Dual-ASIC Emulex BladeEngine 3 (BE3) controller
CN4054R: Dual-ASIC Emulex BladeEngine 3R (BE3R) controller

Connection to either 1 Gb or 10 Gb data center infrastructure (1 Gb and 10 Gb auto-negotiation)

PCI Express 3.0 x8 host interface

Operates either as a 4-port 1/10 Gb Ethernet adapter or supports up to 16 vNICs.

Supports Unified Fabric Port (UFP)

In virtual NIC (vNIC) mode, each adapter supports:



Virtual port bandwidth allocation in 100 Mbps increments.
Up to 16 virtual ports per adapter (four per port).
With the CN4054 Virtual Fabric Adapter Upgrade, 90Y3558, four of the 16 vNICs (one per port)
support iSCSI or FCoE.
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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
Supports for two vNIC modes: IBM Virtual Fabric Mode and Switch Independent Mode

Wake On LAN support.

With the CN4054 Virtual Fabric Adapter Upgrade, 90Y3558, the adapter adds FCoE and iSCSI
hardware initiator support.


iSCSI support is implemented as a full offload and presents an iSCSI adapter to the operating
system.
TCP Offload Engine (TOE) support with Windows Server and Linux.

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Connection and its state are passed to the TCP offload engine.
Data transmit and receive is handled by adapter.
Supported with iSCSI.

Full-duplex (FDX) capability
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Bus-mastering support
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Direct memory access (DMA) support
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Preboot Execution Environment (PXE) support

IPv4/IPv6 TCP, UDP checksum offload
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Large send offload (LSO)
Large receive offload
Receive side scaling (RSS)
IPv4 TCP Chimney Offload
TCP Segmentation Offload

VLAN insertion and extraction

Jumbo frames up to 9000 bytes

Load balancing and failover support, including adapter fault tolerance (AFT), switch fault tolerance
(SFT), adaptive load balancing (ALB), teaming support, and IEEE 802.3ad

Enhanced Ethernet (draft)

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Enhanced Transmission Selection (ETS) (P802.1Qaz)
Priority-based Flow Control (PFC) (P802.1Qbb)
Data Center Bridging Capabilities eXchange Protocol, CIN-DCBX and CEE-DCBX (P802.1Qaz)

Supports Serial over LAN (SoL)

Total Max Power: 23.1 W
Modes of operation
The CN4054 and CN4054R 10Gb Virtual Fabric Adapters support three vNIC modes of operation in
addition to pNIC mode:

IBM Virtual Fabric Mode. This mode only works in conjunction with any of the following switches
installed in the chassis:



IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch
IBM Flex System Fabric EN4093R 10Gb Scalable Switch
IBM Flex System Fabric EN4093 10Gb Scalable Switch
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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In this mode, the adapter communicates with the switch module to obtain vNIC parameters (using
DCBX). Also, a special tag within each data packet is added and later removed by the NIC and switch
for each vNIC group to maintain separation of the virtual channels.
In vNIC mode, each physical port is divided into four virtual ports, providing a total of 16 virtual NICs
per adapter. The default bandwidth for each vNIC is 2.5 Gbps. Bandwidth for each vNIC can be
configured at the switch from 100 Mbps to 10 Gbps, up to a total of 10 Gb per physical port. The
vNICs can also be configured to have 0 bandwidth if you must allocate the available bandwidth to
fewer than eight vNICs. In IBM Virtual Fabric Mode, you can change the bandwidth allocations
through the switch user interfaces without requiring a reboot of the server.
When storage protocols are enabled on the adapter (using CN4054 Virtual Fabric Adapter Upgrade,
90Y3558), six ports are Ethernet, and two ports are either iSCSI or FCoE

Switch Independent Mode, where the adapter works with the following switches:







Cisco Nexus B22 Fabric Extender for IBM Flex System
IBM Flex System EN4023 10Gb Scalable Switch
IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch
IBM Flex System Fabric EN4093R 10Gb Scalable Switch
IBM Flex System Fabric EN4093 10Gb Scalable Switch
IBM Flex System Fabric SI4093 System Interconnect Module
IBM Flex System EN4091 10Gb Ethernet Pass-thru and a top-of-rack (TOR) switch
Switch Independent Mode offers the same capabilities as IBM Virtual Fabric Mode in terms of the
number of vNICs and the bandwidth that each can be configured to have. However, Switch
Independent Mode extends the existing customer VLANs to the virtual NIC interfaces. The IEEE
802.1Q VLAN tag is essential to the separation of the vNIC groups by the NIC adapter or driver and
the switch. The VLAN tags are added to the packet by the applications or drivers at each end station
rather than by the switch.

Unified Fabric Port (UFP) provides a feature rich solution compared to the original vNIC Virtual Fabric
mode. Like Virtual Fabric mode vNIC, UFP allows carving up a single 10 Gb port into four virtual NICs
(called vPorts in UFP). UFP also has a number of modes associated with it, including:

Tunnel mode: Provides Q-in-Q mode, where the vPort is customer VLAN-independent (very
similar to vNIC Virtual Fabric Dedicated Uplink Mode)

Trunk mode: Provides a traditional 802.1Q trunk mode (multi-VLAN trunk link) to the virtual NIC
(vPort) interface, i.e. permits host side tagging

Access mode: Provides a traditional access mode (single untagged VLAN) to the virtual NIC
(vPort) interface which is similar to a physical port in access mode

FCoE mode: Provides FCoE functionality to the vPort

Auto-VLAN mode: Auto VLAN creation for Qbg and IBM VMready environments
Only one vPort (vPort 2) per physical port can be bound to FCoE. If FCoE is not desired, vPort 2 can
be configured for one of the other modes.

In pNIC mode, the expansion card can operate as a standard 10 Gbps or 1 Gbps 4-port Ethernet
expansion card. When in pNIC mode, the expansion card functions with all supported I/O modules.
In pNIC mode, the adapter with the CN4054 Virtual Fabric Adapter Upgrade, 90Y3558, applied
operates in traditional Converged Network Adapter (CNA) mode with four ports of Ethernet and four
ports of storage (iSCSI or FCoE) available to the operating system.
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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Supported servers
The following table lists the IBM Flex System compute nodes that support the adapters.
Table 2. Supported servers
Description
Part number
CN4054 10Gb Virtual Fabric Adapter
90Y3554
Y
N
Y
N
N
Y
N
CN4054R 10Gb Virtual Fabric Adapter
00Y3306
N
N
N
Y
Y
N
Y*
CN4054 Virtual Fabric Adapter Upgrade
90Y3558
Y
N
Y
Y
Y
Y
Y*
* Only supported in slots 1 and 2 of the x280 X6, x480 X6, and x880 X6
See IBM ServerProven at the following web address for the latest information about the expansion cards
that are supported by each blade server type:
http://ibm.com/servers/eserver/serverproven/compat/us/
I/O adapter cards are installed in the slot in supported servers, such as the x240, as highlighted in the
following figure.
Figure 2. Location of the I/O adapter slots in the IBM Flex System x240 Compute Node
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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Embedded 10Gb Virtual Fabric Adapter
Some models of the x240 include an Embedded 10Gb Virtual Fabric Adapter (VFA, also known as LAN
on Motherboard or LOM) built into the system board:


x240 models 8737-x2x and E5-2600 processors have an Embedded 10Gb Virtual Fabric Adapter
based on the BE3 controller
x240 models 8737-x4x and E5-2600 v2 processors have an Embedded 10Gb Virtual Fabric Adapter
based on the BE3R controller
Each x240 model that includes the embedded 10Gb VFA also has the Compute Node Fabric Connector
installed in I/O connector 1 (and physically screwed onto the system board) to provide connectivity to the
Enterprise Chassis midplane.
The Fabric Connector enables port 1 on the Embedded 10Gb VFA to be routed to I/O module bay 1 and
port 2 to be routed to I/O module bay 2. The Fabric Connector can be unscrewed and removed, if
required, to allow the installation of an I/O adapter on I/O connector 1.
The Embedded 10Gb VFA has two 10 GbE ports and has the same features as the 4-port CN4054 10Gb
Virtual Fabric Adapter. The Embedded 10Gb VFA also supports iSCSI and FCoE using the upgrade
license listed in the following table.
Table 3. Feature on Demand upgrade for FCoE and iSCSI support
Part number
Description
90Y9310
IBM Virtual Fabric Advanced Software Upgrade (LOM)
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
6
Supported I/O modules
These adapters can be installed in any I/O adapter slot of a supported IBM Flex System compute node.
One or two compatible 1 Gb or 10 Gb I/O modules must be installed in the corresponding I/O bays in the
chassis. The following table lists the switches that are supported. When connected to the 1 Gb switch, the
adapter will operate at 1 Gb speeds. When connected to the 40 Gb switch, the adapter will operate at 10
Gb speeds.
To maximize the number of adapter ports usable, you may also need to order switch upgrades to enable
additional ports as listed in the table. Alternatively, for CN4093, EN4093R, and SI4093 switches, you can
use Flexible Port Mapping, a new feature of Networking OS 7.8, that allows you to minimize the number
of upgrades needed. See the Product Guides for the switches for more details:
http://www.redbooks.ibm.com/portals/flexsystem?Open&page=pg&cat=switches
The table also specifies how many ports of the adapter are supported once the indicated upgrades are
applied. Switches should be installed in pairs to maximize the number of ports enabled and to provide
redundant network connections.
Table 4. I/O modules and upgrades for use with the CN4054 and CN4054R adapters
Part number
Port count
(per pair
of switches)
IBM Flex System EN6131 40Gb Ethernet Switch
90Y9346
2
IBM Flex System Fabric CN4093 10Gb Converged Scalable Switch
+ CN4093 10Gb Converged Scalable Switch (Upgrade 1)
00D5823
49Y4798
4
IBM Flex System Fabric EN4093R 10Gb Scalable Switch
+ EN4093 10Gb Scalable Switch (Upgrade 1)
95Y3309
49Y4798
4
IBM Flex System Fabric EN4093 10Gb Scalable Switch
+ EN4093 10Gb Scalable Switch (Upgrade 1)
49Y4270
49Y4798
4
IBM Flex System EN4091 10Gb Ethernet Pass-thru
88Y6043
2
IBM Flex System Fabric SI4093 System Interconnect Module
+ SI4093 System Interconnect Module (Upgrade 1)
95Y3313
95Y3318
4
IBM Flex System EN2092 1Gb Ethernet Scalable Switch
+ EN2092 1Gb Ethernet Scalable Switch (Upgrade 1)
49Y4294
90Y3562
4
Cisco Nexus B22 Fabric Extender for IBM Flex System
94Y5350
2
IBM Flex System EN4023 10Gb Scalable Switch
(Base switch has 24 port licenses; Upgrades 1 & 2 may be needed)
94Y5212
4
Description
* This column indicates the number of adapter ports that will be active if indicated upgrades are installed.
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
7
The following table shows the connections between adapters installed in the compute nodes to the switch
bays in the chassis.
Table 5. Adapter to I/O bay correspondence
I/O adapter slot
in the server
Slot 1
Slot 2
Slot 3
(full-wide compute nodes only)
Slot 4
(full-wide compute nodes only)
Port on the adapter
Corresponding I/O module bay
in the chassis
Port 1
Module bay 1
Port 2
Module bay 2
Port 3*
Module bay 1
Port 4*
Module bay 2
Port 1
Module bay 3
Port 2
Module bay 4
Port 3*
Module bay 3
Port 4*
Module bay 4
Port 1
Module bay 1
Port 2
Module bay 2
Port 3*
Module bay 1
Port 4*
Module bay 2
Port 1
Module bay 3
Port 2
Module bay 4
Port 3*
Module bay 3
Port 4*
Module bay 4
* Ports 3 and 4 require Upgrade 1 of either the EN4093 10Gb or the EN2092 1Gb switch. The EN4091 Pass-thru
and Cisco B22 only supports ports 1 and 2 (and only when two I/O modules are installed).
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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The connections between the adapters installed in the compute nodes to the switch bays in the chassis
are shown diagrammatically in the following figure. The figure shows both half-wide servers, such as the
x240 with two adapters, and full-wide servers, such as the p460 with four adapters.
Figure 3. Logical layout of the interconnects between I/O adapters and I/O modules
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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Operating system support
The IBM Flex System CN4054 10Gb Virtual Fabric Adapter supports the following operating systems:





















Microsoft Windows Server 2008 HPC Edition
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008, Datacenter x64 Edition
Microsoft Windows Server 2008, Enterprise x64 Edition
Microsoft Windows Server 2008, Standard x64 Edition
Microsoft Windows Server 2008, Web x64 Edition
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Red Hat Enterprise Linux 5 Server with Xen x64 Edition
Red Hat Enterprise Linux 5 Server x64 Edition
Red Hat Enterprise Linux 6 Server x64 Edition
Red Hat Enterprise Linux 7
SUSE LINUX Enterprise Server 10 for AMD64/EM64T
SUSE LINUX Enterprise Server 10 with Xen for AMD64/EM64T
SUSE LINUX Enterprise Server 11 for AMD64/EM64T
SUSE LINUX Enterprise Server 11 with Xen for AMD64/EM64T
VMware ESX 4.1
VMware ESXi 4.1
VMware vSphere 5.0 (ESXi)
VMware vSphere 5.1 (ESXi)
VMware vSphere 5.5 (ESXi)
The IBM Flex System CN4054R 10Gb Virtual Fabric Adapter supports the following operating systems:

















Microsoft Windows Server 2008 HPC Edition
Microsoft Windows Server 2008 R2
Microsoft Windows Server 2008, Datacenter x64 Edition
Microsoft Windows Server 2008, Enterprise x64 Edition
Microsoft Windows Server 2008, Standard x64 Edition
Microsoft Windows Server 2008, Web x64 Edition
Microsoft Windows Server 2012
Microsoft Windows Server 2012 R2
Red Hat Enterprise Linux 5 Server with Xen x64 Edition
Red Hat Enterprise Linux 5 Server x64 Edition
Red Hat Enterprise Linux 6 Server x64 Edition
Red Hat Enterprise Linux 7
SUSE LINUX Enterprise Server 11 for AMD64/EM64T
SUSE LINUX Enterprise Server 11 with Xen for AMD64/EM64T
VMware vSphere 5.0 (ESXi)
VMware vSphere 5.1 (ESXi)
VMware vSphere 5.5 (ESXi)
Support for operating systems is based on the combination of the expansion card and the blade server on
which it is installed. See the IBM ServerProven website for the latest information about the specific
versions and service packs supported. Select the blade server, and then select the expansion card to see
the supported operating systems:http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
10
Warranty
There is a 1-year, customer-replaceable unit (CRU) limited warranty. When installed in a server, these
adapters assume your system’s base warranty and any IBM ServicePac® upgrade.
Physical specifications
The dimensions and weight of the adapter are as follows:



Width: 100 mm (3.9 inches)
Depth: 80 mm (3.1 inches)
Weight: 13 g (0.3 lb)
Shipping dimensions and weight (approximate):




Height: 58 mm (2.3 in)
Width: 229 mm (9.0 in)
Depth: 208 mm (8.2 in)
Weight: 0.4 kg (0.89 lb)
Regulatory compliance
The adapter conforms to the following standards:
















United States FCC 47 CFR Part 15, Subpart B, ANSI C63.4 (2003), Class A
United States UL 60950-1, Second Edition
IEC/EN 60950-1, Second Edition
FCC - Verified to comply with Part 15 of the FCC Rules, Class A
Canada ICES-003, issue 4, Class A
UL/IEC 60950-1
CSA C22.2 No. 60950-1-03
Japan VCCI, Class A
Australia/New Zealand AS/NZS CISPR 22:2006, Class A
IEC 60950-1(CB Certificate and CB Test Report)
Taiwan BSMI CNS13438, Class A
Korea KN22, Class A; KN24
Russia/GOST ME01, IEC-60950-1, GOST R 51318.22-99, GOST R 51318.24-99, GOST R
51317.3.2-2006, GOST R 51317.3.3-99
IEC 60950-1 (CB Certificate and CB Test Report)
CE Mark (EN55022 Class A, EN60950-1, EN55024, EN61000-3-2, EN61000-3-3)
CISPR 22, Class A
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
11
Popular configurations
The adapters can be used in various configurations. The following figure shows CN4054 10Gb Virtual
Fabric Adapters installed in both slots of the x240 (a model without the Embedded 10Gb Virtual Fabric
Adapter), which in turn is installed in the chassis. The chassis also has four IBM Flex System Fabric
EN4093 10Gb Scalable Switches, each with Upgrade 1 installed to enable 28 internal ports.
Figure 4. Example configuration
The following table lists the parts that are used in the configuration.
Table 6. Components used when connecting the adapter to the 10 GbE switches
Part number/machine type
Description
Quantity
8737-x1x
IBM Flex System x240 Compute Node or other
supported server (without Embedded 10Gb Virtual
Fabric Adapter)
1 to 14
90Y3554
IBM Flex System CN4054 10Gb Virtual Fabric
Adapter
2 per server
8721-A1x
IBM Flex System Enterprise Chassis
1
95Y3309
IBM Flex System Fabric EN4093R 10Gb Scalable
Switch
4
49Y4798
IBM Flex System Fabric EN4093 10Gb Scalable
Switch (Upgrade 1)
4
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
12
Related publications
For more information refer to the following resources:

IBM Flex System Switch Product Guides
http://www.redbooks.ibm.com/portals/flexsystem?Open&page=pg&cat=switches

IBM Flex System Server Product Guides
http://www.redbooks.ibm.com/portals/flexsystem?Open&page=pg&cat=nodes

IBM Flex System Information Center (User's Guides for servers and options)
http://publib.boulder.ibm.com/infocenter/flexsys/information

IBM Flex System Interoperability Guide
http://www.redbooks.ibm.com/fsig

IBM Flex System Products and Technology for x86 Systems
http://www.redbooks.ibm.com/abstracts/sg248255.html?Open

IBM System x and Cluster Solutions configurator (x-config)
http://ibm.com/products/hardware/configurator/americas/bhui/asit/

IBM System x Configuration and Options Guide
http://ibm.com/systems/xbc/cog/

ServerProven for IBM Flex System
http://ibm.com/systems/info/x86servers/serverproven/compat/us/flexsystems.html
IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
13
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IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
14
This document was created or updated on November 5, 2014.
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IBM Flex System CN4054/CN4054R 10Gb Virtual Fabric Adapters
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