HOWTO Manually set NIC speed on Sun Solaris

This article was first written in July 2004 for the BeezNest technical
website (http://glasnost.beeznest.org/articles/143).

Here is how to set manually speed and duplex parameters on network interfaces in Sun Solaris. Adding the following code (comment lines start with '*') to you /etc/system file and rebooting will put your hme type interfaces to 10 Mbits/s Half-Duplex: * * set hme driver modes * *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 = 1 set hme:hme_adv_autoneg_cap = 0 The same for eri type interfaces: * * set eri driver modes * *set eri:adv_100T4_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 = 1 set eri:adv_autoneg_cap = 0 See also Manually setting nic speed / duplex problem Solaris 9 for a complete reference.