centos 7 配置多网卡bond

原文

https://www.cnblogs.com/yxy-linux/p/8327818.html

关闭 NetworkManager 服务

systemctl stop NetworkManager.service
systemctl disable NetworkManager.service

配置网卡1

vim /etc/sysconfig/network-scripts/ifcfg-eno24
TYPE=Ethernet
BOOTPROTO=none
USERCTL=no
DEVICE=eno24
ONBOOT=yes
MASTER=bond0
SLAVE=yes

 配置网卡2

vim /etc/sysconfig/network-scripts/ifcfg-eno25
TYPE=Ethernet
BOOTPROTO=none
USERCTL=no
DEVICE=eno25
ONBOOT=yes
MASTER=bond0
SLAVE=yes

配置bond

vim /etc/sysconfig/network-scripts/ifcfg-bond0
TYPE=Bond
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
DEVICE=bond0
IPADDR=192.168.1.4
PREFIX=24
GATEWAY=192.168.1.254
NM_CONTROLLED=no
BONDING_MASTER=yes

加bonding内核模板

modprobe --first-time bonding
lsmod | grep bonding 或者 modinfo bonding

配置bonding驱动

（实践该步骤未做，便可用）
vim /etc/modprobe.d/bond.conf
alias bond0 binding
options bond0 miimon=100 mode=1

重启网络服务

service network restart

查看bond0生效

cat /proc/net/bonding/bond0

配置dns

vim /etc/resolv.conf 
nameserver 202.106.0.20

centos 7默认启动时没有加载bonding模块

# 查看bonding模块详细信息
modinfo bonding
filename  /lib/modules/3.10.0-229.el7.x86_64/kernel/drivers/net/bonding/bonding.ko


# 配置系统启动时加载bonding模块
vim /etc/sysconfig/modules/bonding.modules 
#!/bin/sh
/sbin/modinfo -F filename bonding > /dev/null 2>&1
if [ $? -eq 0 ];then
    /sbin/modprobe bonding
fi


# 设置执行权限
chmod 755 /etc/sysconfig/modules/bonding.modules 
# 重启查看是否生效
reboot