Dual Ethernet ports binding bond

bond and a kernel module called special channel bonding network interface, the network interface interfaces to bind a plurality of channels.

The selection of the binding mode, channel bonding the two or more network interfaces as a network interface, to increase bandwidth to provide redundancy or

Mode 0 (balance round robin) - round-robin policy, a round-robin manner using all interfaces in all slave packet transmission, the slave can receive any

Mode 1 (active backup) - fault tolerance, you can only use a slave interface, but if the interface fails, another slave takes over it

Mode 3 (broadcast) - fault-tolerant, all packets will be broadcast by all slave interfaces

eth0 192.168.1.104 eth1 192.168.1.105

bound  192.168.1.106


Software Configuration

cp -pv /etc/sysconfig/selinux /etc/sysconfig/selinux.bak

echo 'SELINUX=disabled'  > /etc/sysconfig/selinux


cp -pv /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0.bak

cp -pv /etc/sysconfig/network-scripts/ifcfg-eth1 /etc/sysconfig/network-scripts/ifcfg-eth1.bak


cat  /etc/sysconfig/network-scripts/ifcfg-eth0      

DEVICE=eth0

HWADDR=00:0C:29:45:17:69

TYPE=Ethernet

UUID=2a0d57d6-4cc6-4fb0-82b0-6efe7cef4d14

ONBOOT=yes

BOOTPROTO=none

SLAVE=yes 

MASTER=bond0      


cat /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1

HWADDR=00:0C:29:45:17:73

TYPE=Ethernet

UUID=62962214-47ea-4791-866c-08b2e004af83

ONBOOT=yes

BOOTPROTO=none

SLAVE=yes 

MASTER=bond0 



cat /etc/sysconfig/network-scripts/ifcfg-bond0

DEVICE=bond0

TYPE=Ethernet 

USERCTL=no 

ONBOOT=yes 

#BONDING_OPTS="miimon=100 mode=1" 

BOOTPROTO=static 

IPADDR=192.168.1.106   

NETMASK=255.255.255.0  

GATEWAY=192.168.1.1  


cp -pv /etc/modprobe.d/dist.conf /etc/modprobe.d/dist.conf.bak

echo 'alias bond0 bonding' >> /etc/modprobe.d/dist.conf

echo 'options bond0 miimon=100 mode=1' >> /etc/modprobe.d/dist.conf

less /etc/modprobe.d/dist.conf | grep bond

alias bond0 bonding

Options bond0 miimon = 100 mode = 1


cp -pv /etc/rc.d/rc.local  /etc/rc.d/rc.local.bak

echo 'ifenslave bond0 eth0 eth1'  >>  /etc/rc.d/rc.local

less /etc/rc.d/rc.local | grep bond

ifenslave bond0 eth0 eth1

service NetworkManager stop 

chkconfig NetworkManager off

service network restart


ip addr | grep bond

4: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP 

    inet 192.168.1.106/24 brd 192.168.1.255 scope global bond0

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Origin blog.51cto.com/mailfile/2411282