NIC Bonding in the Centos7

Most of the setting are same as in the Older Version as in the Following URL .

http://www.adminz.in/2014/07/nic-bonding-in-linux.html

We just need to add following entries in the Master Bond0 config file to make the network system understand that bond0 is the master.

In bond0's config file.

TYPE=Bond
BONDING_MASTER=yes

Sample Master File


DEVICE=bond0
NAME=bond0
TYPE=Bond
BONDING_MASTER=yes
IPADDR=192.168.1.1
NETMASK=255.255.255.0
ONBOOT=yes
BOOTPROTO=none
BONDING_OPTS="bonding parameters separated by spaces"

Sample Slave File

DEVICE=ethN
NAME=bond0-slave
TYPE=Ethernet
BOOTPROTO=none
ONBOOT=yes
MASTER=bond0
SLAVE=yes

NIC Bonding in linux

#Creating Bonding Channel
echo "alias bond0 bonding" >> /etc/modprobe.d/bonding.conf
options bond0 miimon=80 mode=5
Be sure to add this before any of the network aliases

modes:
mode=0 (Balance Round Robin)
mode=1 (Active backup)
mode=2 (Balance XOR)
mode=3 (Broadcast)
mode=4 (802.3ad)
mode=5 (Balance TLB)
mode=6 (Balance ALB)
#Creating Channle Bonding Interface
echo "
DEVICE=bond0
IPADDR=192.168.1.41
NETMASK=255.255.255.0
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
" >> /etc/sysconfig/network-scripts/ifcfg-bond0

echo "
DEVICE=eth1
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none
" /etc/sysconfig/network-scripts/ifcfg-eth1

echo "
DEVICE=eth2
USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
BOOTPROTO=none
" /etc/sysconfig/network-scripts/ifcfg-eth2