rudi
when migrating some rackmount HP servers running Centos4 from hard coded 100 meg fdx to auto gigE that we had to
1) remove this from our ifcfg-ethX files
ETHTOOL_OPTS="speed 100 duplex full autoneg off"
2) proper CAT6 wiring
3) plug into the copper gigE switchport
4) reboot
using Cisco though...
did not find a decent plug n play solution
i.e., did not waste a lot of time looking for solutions other than the obvious cisco and centos config or network down and up interface commands
- rh