Allied Telesis Broadcom Advanced Control Suite 3 User Manual
Page 34
Chapter 1: Starting and Using BACS 3
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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.
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. Select one of the following:
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. Select one of the following:
Value. Assigns a unique node address for the adapter.
Not Present (default). Uses the factory-assigned node address on the
adapter.