Hard Code Ethernet Duplex Settings

Mismatched Duplex settings are not good for your system or the network. They result in errors, extremely long downloads, and can cause a lot of problems. Here is some ways to force certain types of interfaces to their required speed. I have used 100Mbps for example, but the settings can be tweaked for your needs.

#hme - Usually found on the older Ultra models
#Add these lines to /etc/system
set hme:hme_adv_100T4_cap = 0
set hme:hme_adv_autoneg_cap = 0
set hme:hme_adv_100fdx_cap = 1
set hme:hme_adv_100hdx_cap = 0
set hme:hme_adv_10fdx_cap = 0
set hme:hme_adv_10hdx_cap = 0
# using a ndd startup script if you do not want to add to /etc/system
#!/bin/sh
ndd -set /dev/hme adv_100T4_cap 0
ndd -set /dev/hme adv_autoneg_cap 0
ndd -set /dev/hme adv_100fdx_cap 1
ndd -set /dev/hme adv_100hdx_cap 0
ndd -set /dev/hme adv_10fdx_cap 0
ndd -set /dev/hme adv_10hdx_cap 0
#qfe - Quad fast ethernet
#Add these lines to /etc/system
set qfe:qfe_adv_100T4_cap = 0
set qfe:qfe_adv_autoneg_cap = 0
set qfe:qfe_adv_100fdx_cap = 1
set qfe:qfe_adv_100hdx_cap = 0
set qfe:qfe_adv_10fdx_cap = 0
set qfe:qfe_adv_10hdx_cap = 0
# using a ndd startup script if you do not want to add to /etc/system
#!/bin/sh
ndd -set /dev/qfe adv_100T4_cap 0
ndd -set /dev/qfe adv_autoneg_cap 0
ndd -set /dev/qfe adv_100fdx_cap 1
ndd -set /dev/qfe adv_100hdx_cap 0
ndd -set /dev/qfe adv_10fdx_cap 0
ndd -set /dev/qfe adv_10hdx_cap 0
# eri - found on newer Sun Blades and Sun Fires
#Add these lines to /etc/system
set eri:adv_100T4_cap = 0
set eri:adv_autoneg_cap = 0
set eri:adv_100fdx_cap = 1
set eri:adv_100hdx_cap = 0
set eri:adv_10fdx_cap = 0
set eri:adv_10hdx_cap = 0
# using a ndd startup script if you do not want to add to /etc/system
#!/bin/sh
ndd -set /dev/eri adv_100T4_cap 0
ndd -set /dev/eri adv_autoneg_cap 0
ndd -set /dev/eri adv_100fdx_cap 1
ndd -set /dev/eri adv_100hdx_cap 0
ndd -set /dev/eri adv_10fdx_cap 0
ndd -set /dev/eri adv_10hdx_cap 0
# bge0 - Gigabit
# I use a script, however, I think there is a config file in the /kernel directory.
ndd -set /dev/bge0 adv_autoneg_cap 0
ndd -set /dev/bge0 adv_1000fdx_cap 0
ndd -set /dev/bge0 adv_1000hdx_cap 0
ndd -set /dev/bge0 adv_100fdx_cap 1
ndd -set /dev/bge0 adv_100hdx_cap 0
ndd -set /dev/bge0 adv_10fdx_cap 0
ndd -set /dev/bge0 adv_10hdx_cap 0
# ge - Gigabit
# I use a script, however, I think there is a config file in the /kernel directory.
ndd -set /dev/ge adv_autoneg_cap 0
ndd -set /dev/ge adv_1000fdx_cap 0
ndd -set /dev/ge adv_1000hdx_cap 0
ndd -set /dev/ge adv_100fdx_cap 1
ndd -set /dev/ge adv_100hdx_cap 0
ndd -set /dev/ge adv_10fdx_cap 0
ndd -set /dev/ge adv_10hdx_cap 0