Dell Broadcom NetXtreme Family of Adapters Betriebsanweisung PDF herunterladen (Seite 6)

NetXtreme II User Guide

September 2013

Broadcom Corporation

Page 6 Features Document INGSRVT78-CDUM100-R

The Broadcom NetXtreme II adapter targets best-system performance, maintains system flexibility to changes, and supports

current and future OS convergence and integration. Therefore, the adapter's iSCSI offload architecture is unique as evident

by the split between hardware and host processing.

NOTES: The iSCSI offload feature is not available for all Broadcom network adapters.

FIBRE CHANNEL OVER ETHERNET

FCoE (Fibre Channel Backbone-5 (FC-BB-5)) allows Fibre Channel protocol to be transferred over Ethernet. FCoE

preserves existing Fibre Channel infrastructure and capital investments. The following FCoE features are supported:

• Full stateful hardware FCoE offload

• Receiver classification of FCoE and FIP frames. FIP is the FCoE Initialization Protocol used to establish and maintain

connections.

• Receiver CRC offload

• Transmitter CRC offload

• Dedicated queue set for Fibre Channel traffic

• Data Center Bridging (DCB) provides lossless behavior with Priority Flow Control (PFC)

• DCB allocates a share of link bandwidth to FCoE traffic with Enhanced Transmission Selection (ETS)

NOTES: FCoE is not available for all Broadcom network adapters.

POWER MANAGEMENT

The adapter speed setting will link at the configured speed for WOL when the system is powered down.

NOTES:

• For specific systems, see your system documentation for WOL support.

• WOL is supported in Broadcom NetXtreme II BCM5708 devices with silicon revisions of B2 or later. For more

information, see Limitations.

ADAPTIVE INTERRUPT FREQUENCY

The adapter driver intelligently adjusts host interrupt frequency based on traffic conditions to increase overall application

throughput. When traffic is light, the adapter driver interrupts the host for each received packet, minimizing latency. When

traffic is heavy, the adapter issues one host interrupt for multiple, back-to-back incoming packets, preserving host CPU

cycles.

ASIC WITH EMBEDDED RISC PROCESSOR

The core control for Broadcom NetXtreme II adapters resides in a tightly integrated, high-performance ASIC. The ASIC

includes a RISC processor. This functionality provides the flexibility to add new features to the card and adapts it to future

network requirements through software downloads. This functionality also enables the adapter drivers to exploit the built-in

host offload functions on the adapter as host operating systems are enhanced to take advantage of these functions.

1 2 3 4 5 6 7 8 9 10 11 ... 331 332

Keine Kommentare

Dell Broadcom NetXtreme Family of Adapters Betriebsanweisung Seite 6