Bonding in RHEL 5

Procedure to configure NIC bonding in Linux

Edit the Files as follows,
# vi /etc/modprobe.conf

alias bond0 bonding
options bonding miimon=100 mode=1

# vi /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=none
HWADDR=00:15:17:87:D4:A8
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
MASTER=bond0
SLAVE=yes

# vi /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
BOOTPROTO=none
HWADDR=00:15:17:87:D4:A9
ONBOOT=yes
TYPE=Ethernet
USERCTL=no
MASTER=bond0
SLAVE=yes

And create new file as below,
# vi /etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0
ONBOOT=yes
IPADDR=172.16.0.152
NETMASK=255.255.255.0
USERCTL=no
NETWORK=172.16.0.0
GATEWAY=172.16.0.1


Restart the server. Give ifconfig, you will find bond0 is up with configured IP Address and eth0 and eth1 will be as slave.