How to setup NIC teaming in Linux (CentOS)

If you want to create a bonding on two interface (i.e. eth0 and eth1) you should do the following :
Edit /etc/sysconfig/network-scripts/ifcfg-eth0

Edit /etc/sysconfig/network-scripts/ifcfg-eth1

Copy /etc/sysconfig/network-scripts/ifcfg-eth1 to /etc/sysconfig/network-scripts/ifcfg-bond0 to keep the same file permission by executing the following commands :

Edit /etc/sysconfig/network-scripts/ifcfg-bond0

Edit /etc/modprobe.conf adding the following line :

Reboot your system to let modules be loaded or load it manually with the following command :

If you haven’t rebooted your system, restart your network with the following command :

You should check if bonding is working you should look at /proc/net/bonding/bond0 with the following command :

and you should see something similar to the following :

DONE

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