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22 Sun 10-Gigabit Ethernet PCI-X Adapter Installation and User’s Guide • December 2005

Jumbo Frames

The variable accept-jumbo enables the driver to instruct the upper layers that the

driver is operating in Jumbo-frame mode.

Refer to the documentation that came with your switch for exact commands to

configure jumbo frames support.

▼ To Configure Jumbo Frames Using ndd

1. Unplumb the interface you want to configure Jumbo Frames on.

2. Kill any snoop or netstat processes running over the interface to be configured.

3. Set the instance number:

In this example, the instance number set is 0.

4. Set the instance to accept jumbo frames:

5. Plumb the interface up:

where

xxx.xxx.xx.xxx = the IP address of the interface.

TABLE 3-4 accept-jumbo Parameters

Parameter Values Description

accept-jumbo 1 Enables Jumbo-frame mode and sets MTU to

greater than 1500.

0 Jumbo frames is not enabled. MTU is at

1500.

% ndd -set /dev/ixge instance 0

% ndd -set /dev/ixge accept-jumbo 1

% ifconfig ixge0 plumb xxx.xxx.xx.xxx up

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