How to create network bonding device?

Environment : RHEL 6

Steps :

1. vi /etc/modprobe.conf and add : alias bond bonding
2. vi /etc/sysconfig/network-scripts/ifcfg-bond and add :

---
DEVICE=bond0
IPADDR=192.168.1.1
NETMASK=255.255.255.0
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
BONDING_OPTS=""
---

NB : N -> 0,1, ...

2. Let two ethernet cards are there like : eth0 and eth1 :They will look like :

----
DEVICE=eth<0/1>
BOOTPROTO=none
ONBOOT=yes
MASTER=bond
SLAVE=yes
USERCTL=no
----

3. Make sure "bonding" kernel module is present on server: lsmod | grep bonding; modprobe bonding;
4. Restart the service network and make the bond0 up.like : #service network restart

Try :)