Linux system to do dual NIC binding

Linux system dual NIC binding:

Be sure to back up the configuration file before you do a dual NIC binding!

Linux system NIC configuration file location:
Cd/etc/sysconfig/network-scripts

CP Ifcfg-eth0 IFCFG-BOND0

For example, we need to bind the NIC is ifcfg-eth0 corresponding eth0
Ifcfg-eth1 corresponds to eth1 these two network cards!

#vi ifcfg-bond0

There are four places to change:
1. Device Name:
Device=bond0

2, configure IP address, mask, gateway and other information:
ipaddr=1.1.1.1
netmask=255.255.255.0
gateway=1.1.1.254

3, modify the Onboot=yes
Bootproto=none

4. Remove UUID, HWADDR

#vi ifcfg-eth1

#viifcfg-eth0

1. Remove UUID, HWADDR
2. Add
Master=bond0
Slave=yes

Edit /etc/modprobe.d/dist.conf

at the bottom of the file, add the following 2 Line

Alias Bond0 Bonding

Options Bond0 miimon=100 mode=1

mode=0 represents load Balancing (round-robin) for load balancing, both NICs work.

mode=1 represents fault-tolerance (active-backup) provides redundancy, working in a way that the primary and standby work , This means that by default only one NIC works , another piece to do backup .

This article from "Maya" blog, declined reprint!

Linux system to do dual NIC binding