Embedded Nics/Lan On Motherboard (Lom) - Dell External OEMR R910 Technical Manual

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11 Embedded NICs/LAN on Motherboard (LOM)

R910 supports two options for Embedded NICs (I/O riser card):
• 4-port 1GbE using 2x Broadcom 5709c
4-port (2 x 10Gb SFP+ & 2 x 1GbE) using 1 x Broadcom 57711 & 1 x Broadcom 5709c
•
iSCSI offload is standard on both options.
Option 1: 1GbE I/O riser
Two dual-port Broadcom BCM5709C Gigabit Ethernet controllers with support circuitry are embedded
on the R910 1GbE IO riser board. Features of the LAN device include:
x4 PCI Express Gen2 capable interface
•
o R910 operates dual-port controllers at Gen1 speed
MAC and PHY integrated
•
• 3072x18 Byte context memory
64 KB receive buffer
•
• TOE (TCP Offload Engine)
iSCSI controller
•
• RDMA controller (RNIC) (enabled through an optional hardware key)
NC-SI (Network Controller-Sideband Interface) connection
•
• Wake-On-LAN (WOL)
PXE 2.0 remote boot
•
iSCSI boot
•
• IPv4 and IPv6 support
Bare metal deployment support
•
Option 2: 10Gb I/O riser
In addition to a Broadcom BCM5709C dual port Ethernet controller, there is a dual-port 10 Gb MAC
controller along with the external PHY embedded on the R910 10 Gb IO riser board. The devices are
Broadcom BCM57711 Gigabit MAC with BCM8727 SFP+ PHY. Features include:

x8 PCI Express Gen2 capable interface

SFP+ interface supported with SR and LRM optics or direct attached cable

TOE (TCP Offload Engine)

iSCSI controller

RDMA controller (RNIC) (enabled through an optional hardware key)

NC-SI (Network Controller-Sideband Interface) connection

Wake-On-LAN (WOL)

PXE 2.0 remote boot

iSCSI boot

IPv4 and IPv6 support

Bare metal deployment support
NOTE: Four functional PSUs (2+2 config) are required in order to use the 10Gb I/O riser.
Dell PowerEdge R910 Technical Guide 44