Unix Tech Tips

4. Setting up ethernet card speed , duplex mode in Solaris

Command Line : Changes are lost on system reboots .

– set the device instance (for multiport cards)
ndd -set /dev/hme instance 0
this makes the next commands apply to hme0.

– query parameters for the set instance:
ndd -get /dev/hme link_status 0 = link up, 1 = link down
ndd -get /dev/hme link_speed 0 = 10MBit, 1 = 100MBit
ndd -get /dev/hme link_mode 0 = half duplex, 1 = full duplex
ndd -get /dev/hme adv_autoneg_cap 0 = no autonegotiation, 1 = autoneg. enabled

– set parameters, e.g.
ndd -set /dev/hme instance 0
ndd -set /dev/hme adv_autoneg_cap 1 to enable autonegotiation for hme0

2. Permanant Changes : changes are not lost on reboot.
edit the /etc/system file and add these parameters .The sequence number matters.

set hme:hme_adv_autoneg_cap=0
set hme:hme_adv_100T4_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

Ehthernet mode setting in x86 is done in drivers .conf file.

100Mb Full Duplex on elxl0 in Solaris x86

edit /kernel/drv/elxl.conf :

#ident “@(#)elxl.conf 1.3 98/02/23 SMI”
# Copyright (c) 1998, by Sun Microsystems, Inc.
# All rights reserved.
# Driver.conf file for the 3Com 3C90x
# To force full duplex operation, uncomment the following line:
# To force half duplex operation, uncomment the following line:
# To force 10Mbps operation, uncomment the following line:
# To force 100Mbps operation, uncomment the following line:


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