Thanks for your reply Robin, > It looks like you switch is configured to use tagged vlans. I must use tagged vlans. I configured the switch as your example. > Then add the following config file. >/etc/sysconfig/network-scripts/ifcfg-bond0.201 >DEVICE=bond0.201 I cannot bring this interface up. If you do ifconfig it only shows bond0, eth0 & eth1. Since bond0.201 does not come up, the system has no default gateway. Any clue? Nassri