I/O Expansion Options; Network Adapters - IBM x3250 M4 Product Manual

I/O expansion options

The server offers two PCI Express slots (one x4 and one x8). The slot form-factors are:
Slot 1: PCIe 3.0 x4 (for use only by compact adapters such as the ServeRAID BR10il v2 or H1110

controllers or the Broadcom NetXtreme Dual Port Ethernet Compact Adapter)
Slot 2: PCIe 3.0 x8, full-height, half-length (PCIe 2.0 in models with processors announced

September 2011 - see Table 4)

Network adapters

The x3250 M4 offers two integrated Gigabit Ethernet ports. One port is shared with Integrated
Management Module (IMM).
The Integrated NICs have the following features:
Intel 82574L chip

TCP/UDP, IPv4, and IPv6 checksum offloads

TCP Segmentation/Transmit Segmentation Offloading (TSO)

Wake on LAN support

802.1Q VLAN tagging support

Support for jumbo frames up to 9 KBytes

NIC Teaming (Load Balancing and Failover) with Intel PROSet software

The Broadcom NetXtreme Dual Port Ethernet Compact Adapter, SBB 90Y5381, feature code A1R5, is
designed to fit in Slot 1 of the x3250 M4 server, thereby freeing up the PCIe x8 slot for other purposes.
Use this adapter when you don't have the ServeRAID BR10il v2 or H1110 controller configured as it
occupies the same slot. The Broadcom NetXtreme Dual Port Ethernet Compact Adapter is available CTO
or special bid only and has these features:
Broadcom 5718 ASIC

Full-duplex (FDX) capability

IEEE 802.3x FDX flow control

I/O virtualization support for VMware NetQueue and Microsoft VMQ

Function Level Reset (FLR)

IPv4/IPv6 offload: TCP, IP, and UDP checksum offload

Large send offload (LSO)

TCP segmentation offload (TSO)

Receive side scaling (RSS)

Transmit-side scaling (TSS)

IEEE 802.1Q VLAN tagging

VLAN insertion and extraction

Jumbo frames up to 9,600 bytes

NIC Teaming (Load Balancing and Failover) with other Broadcom NX or NX2 adapters

Wake On LAN support

Message Signal Interrupt (MSI-X) support

Note: TCP Offload Engine (TOE) is not supported by the Broadcom NetXtreme Dual Port Ethernet
Compact Adapter.
IBM System x3250 M4 19