Enables a Gigabit Ethernet adapter to establish a link at a lower speed when only two pairs of wires are available in the cabling plant. The default setting

for this property is Enabled.

Flow Control

Enables or disables the receipt or transmission of PAUSE frames. PAUSE frames allow the network adapter and a switch to control the transmit rate. The

side that is receiving the PAUSE frame momentarily stops transmitting. By enabling TOE, network performance improves, but with the increased

performance, TOE performance is more susceptible to packet loss when flow control is disabled. Enable flow control to reduce the number of packets lost.

NOTE: If Jumbo MTU is set to 5000 bytes or greater on network adapters that support 10 Gbps link speed, ensure that Flow Control is set to Auto to

prevent the system performance from performing at less than optimal levels. This limitation exists on a per-port basis.

Auto (default). Receive and transmit PAUSE frame functionality are optimized. This option indicates that the adapter automatically adjusts the flow

control settings for optimal performance, and its purpose is not enabling auto negotiation of the flow control parameters.

Disable. Receive and transmit PAUSE frame functionality are disabled.

Rx PAUSE. Receive PAUSE frame is enabled.

Rx/Tx PAUSE. Receive and transmit PAUSE frame are enabled.

Tx PAUSE. Transmit PAUSE frame is enabled.

IPv4 Checksum Offload

Normally, the checksum function is computed by the protocol stack. When you select one of the Checksum Offload property values (other than None), the

checksum can be computed by the network adapter.

Rx Enabled. Enables receive TCP/IP/UDP checksum offload.

Tx Enabled. Enables transmit TCP/IP/UDP checksum offload.

Tx/Rx Enabled (default). Enables transmit and receive TCP/IP/UDP checksum offload.

None. Disables checksum offload.

IPv4 Large Send Offload

Normally, the TCP segmentation is done by the protocol stack. When you enable the Large Send Offload property, the TCP segmentation can be done by

the network adapter. The default setting for this property is Enabled. This property is only available for Broadcom NetXtreme II adapters.

Jumbo MTU

Enables the network adapter to transmit and receive oversized Ethernet frames that are greater than 1514 bytes, but less than or equal to 9000 bytes in

length (9600 bytes for network adapters that operate at 10 Gbps). This property requires the presence of a switch that is able to process jumbo frames.

This property is only available for Broadcom NetXtreme II adapters.

Frame size is set at 1500 bytes by default. To increase the size of the received frames, raise the byte quantity in 500-byte increments.

NOTE: If Jumbo MTU is set to 5000 bytes or greater on network adapters that support 10 Gbps link speed, ensure that Flow Control is set to Auto to

prevent the system performance from performing at less than optimal levels. This limitation exists on a per-port basis.

LSO & Jumbo Frames

Enables the network adapter to transmit and receive oversized Ethernet frames that are greater than 1514 bytes, but less than 9000 bytes in length. This

property requires the presence of a switch that is able to process Jumbo frames. This information is available for some Broadcom NetXtreme adapters and

is not available for all Broadcom NetXtreme II adapters.

Frame size is set at 1500 bytes by default by selecting the LSO Enabled, Jumbo Off option.

NOTE: Jumbo Frames and Large Send Offload (LSO) are mutually-exclusive properties.

Normally, the TCP segmentation is done by the protocol stack. When you enable the Large Send Offload (LSO) property, the TCP segmentation can be

done by the network adapter.

Both Disabled. LSO & Jumbo frames are both disabled.

LSO Enabled, Jumbo Off (default). LSO enabled and jumbo frames disabled.

LSO Off, Jumbo 3000. Frame size of 3000 bytes and LSO off.

LSO Off, Jumbo 4500. Frame size of 4500 bytes and LSO off.

LSO Off, Jumbo 6000. Frame size of 6000 bytes and LSO off.

LSO Off, Jumbo 7500. Frame size of 7500 bytes and LSO off.

LSO Off, Jumbo 9000. Frame size of 9000 bytes and LSO off.

Locally Administered Address

The Locally Administered Address is a user-defined MAC address that is used in place of the MAC address originally assigned to the network adapter. Every

adapter in the network must have its own unique MAC address. This locally administered address consists of a 12-digit hexadecimal number.

Value. Assigns a unique node address for the adapter.

Not Present (default). Uses the factory-assigned node address on the adapter.

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