CentOS7双网卡绑定配置

step1:创建绑定文件

[root@node-1 ~]# vi /etc/sysconfig/network-scripts/ifcfg-bond0 

TYPE="bond"
BOOTPROTO="none"
NAME="bond0"
DEVICE="bond0"
IPADDR="192.168.1.20"
NETMASK="255.255.255.0"
GATEWAY="192.168.1.1"
DNS1="8.8.8.8"
DNS2="8.8.4.4"
ONBOOT="yes"

step2:编辑需要绑定的物理网卡,并且指定主从,如下:

[root@node-1 ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0

TYPE="Ethernet"
BOOTPROTO="none"
NAME="eth0"
DEVICE="eth0"
MASTER="bond0"
SLAVE="yes"
ONBOOT="yes"

[root@node-1 ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth1

TYPE="Ethernet"
BOOTPROTO="none"
NAME="eth1"
DEVICE="eth1"
MASTER="bond0"
SLAVE="yes"
ONBOOT="yes"

step3:创建bond文件,并且设定冗余的模式

[root@node-1 ~]# vi /etc/modprobe.d/bonding.conf 

 alias bond0 binding

options bond0 miimon=100 mode=1

step4:重启机器

注:关于mode的说明

mode=0  //平衡循环

mode=1 //主备

mode=3 //广播

mode=4 //链路聚合

原文地址:https://www.cnblogs.com/networking/p/10216387.html