Sun Microsystems 3U Installation And User Manual page 60

Setting Forced Mode Using the ndd Utility
This section describes how to force a network speed over an interface (forced mode)
and to disable autonegotiation.
To Set Forced Mode and Disable Autonegotiation
1. Use the ndd utility to select the qfe instance that you want to set.
# ndd -set /dev/qfe instance instance_number
See "Identifying Device Instances" on page 39 for more information.
2. Select one of the four operational mode parameters (adv_100fdx_cap,
adv_100hdx_cap, adv_10fdx_cap, or adv_10hdx_cap), and use the ndd utility
to set its value to 1.
For example, to set the 10 Mbps, half-duplex mode, you would set the
adv_10hdx_cap parameter to 1.
# ndd -set /dev/qfe adv_10hdx_cap 1
If you set more than one of the operational mode parameters to 1, the driver will
select the mode that is highest in the priority order (see "Operational Mode
Parameters" on page 36 for more information).
3. Use the ndd utility to disable autonegotiation by setting the adv_autoneg_cap
parameter to 0.
# ndd -set /dev/qfe adv_autoneg_cap 0
44 Sun Quad FastEthernet 3U CompactPCI Adapter Installation and User Guide • December 2000