User's Guide Gigabit Ethernet Host Adapters ITIpci 5100G/GF

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Adapter Driver Parameters

Parameter Meaning

tx_flow_control

If link negotiation is on, a value of 1 allows the

adapter to negotiate 802.3x transmit flow control

with the device at the other end of the link. I

802.3x flow control is supported by the other

device, transmit pause packets will be respected. A

value of 0 disables transmit flow control. The

default is 0 (off).

hybrid_len

(Do not use; value is set by startup file)

shared_rupt

(Do not use; value is set by startup file)

snap

(Do not use; value is set by startup file)

instance

Used to set the device number from which the

revious data is extracted. This value can range

from 0 to the number of adapters installed in the

system. The default is 0.

Table 8: Adapter Driver Parameters

Checking Parameter Settings

To check a current parameter setting, use the following command:

# ndd /dev/alt <parameter_name>

Setting Parameters

Follow this procedure to set parameters using the ndd utility:

1. Check the

/etc/path_to_inst file for the instance

associated with particular devices.

2. Specify the instance for the adapter you wish to configure:

# ndd -set /dev/alt instance

<instance#>

Any subsequent ndd configuration commands will act on the

adapter with the selected instance. The adapter remains selected

until you specify a different instance.

3. Specify the configuration command using the following format:

# ndd -set /dev/alt

A list of valid parameters and values can be found in Available Parameters.