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To Disable Autonegotiation Mode
If your network equipment does not support autonegotiation, or if you want to
specify your network speed, you can set autonegotiation to off on the ce device.
Note – Disabling autonegotiation mode can cause collisions.
1. Set the following driver parameters to the values that are described in the
documentation that shipped with your link partner (for example, a switch):
adv-1000fdx-cap
adv-100fdx-cap
adv-100hdx-cap
adv-10fdx-cap
adv-10hdx-cap
adv-asmpause-cap
adv-pause-cap
See
TABLE 4-2
Note – According to IEEE 802.3 specifications, when using 1000 Mbps speed over
copper media, autonegotiation is not optional. In the absence of autonegotiation, (for
example, while using Forced mode), link syncing between link partners may not
happen and the link may not come up.
2. Set the adv-autoneg-cap parameter to 0.
# ndd -set /dev/ce adv-autoneg-cap 0
When you change any ndd link parameter, a message similar to the following
appears:
xcvr addr:0x00 - link up 100 Mbps full duplex
Setting Parameters Using the ce.conf File
Specify the driver parameter properties for each device by creating a ce.conf file in
the /platform/sun4u/kernel/drv directory. Use a ce.conf file when you need
to set a particular parameter for a device in the system. The parameters you can set
are the read and write parameters listed in "GigaSwift Ethernet Driver Parameter
Values and Definitions" on page 38.
50
Sun GigaSwift Ethernet Adapter Installation and User's Guide • August 2004
for the descriptions and possible values of these parameters.
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Troubleshooting
