NIC Bonding: 2 nic port as 1 interface

The following is concluded from here.

Consider we have 2 interfaces:

eth0 & eth1

bond the two interface:

in ifcfg-eth0/ifcfg-eth1:

remove IP/MASK/GW/UUID;

DEVICE="ethn"

NM_CONTROLLED="no"

MASTER=bond0

SLAVE=yes

HWADDR="macaddr"

ONBOOT="yes"

bond0:

remove HWADDR

add IP/MASK/GW

DEVICE="bond0"

ONBOOT="yes"

BONDING_OPTS="mode=0 miimon=100 primary=eth0"

where mode=0, RR, mode=1, active-backup

miimon means milisecs after bonding is up

primary device is the default when in mode 1.

 

before doing anything, make sure kernel module bonding is loaded by modprobe bonding..