centos下多网卡做bond脚本
多网卡或者单网卡形式下的网卡bonding
#! /bin/sh
#获取当前网卡数
ethnum=`lspci | grep Ethernet | wc -l`
echo $ethnum
#如果网卡数小于等于1则什么都不做
if [ $ethnum -le 1 ]
then
echo "do nothing!"
fi
#如果网卡数大于等于2则
if [ $ethnum -ge 2 ]
then
#------- 添加一个bond0的网卡
echo "DEVICE=bond0" > /etc/sysconfig/network-scripts/ifcfg-bond0
echo "ONBOOT=yes" >> /etc/sysconfig/network-scripts/ifcfg-bond0
echo "IPADDR=192.168.3.104" >> /etc/sysconfig/network-scripts/ifcfg-bond0
echo "NETMASK=255.255.0.0" >> /etc/sysconfig/network-scripts/ifcfg-bond0
echo "GATEWAY=192.168.1.1" >> /etc/sysconfig/network-scripts/ifcfg-bond0
echo "BOOTPROTO=static" >> /etc/sysconfig/network-scripts/ifcfg-bond0
echo "USERCTL=no" >> /etc/sysconfig/network-scripts/ifcfg-bond0
#--------
echo "ifenslave bond0" >> /etc/rc.local
#--------写其他网卡的配置文件
for i in $(seq $ethnum);
do
num=`expr $i - 1`
echo "BOOTPROTO=none" > /etc/sysconfig/network-scripts/ifcfg-eth$num
echo "DEVICE=eth$num" >> /etc/sysconfig/network-scripts/ifcfg-eth$num
echo "ONBOOT=yes" >> /etc/sysconfig/network-scripts/ifcfg-eth$num
echo "MASTER=bond0" >> /etc/sysconfig/network-scripts/ifcfg-eth$num
echo "USERCTL=no" >> /etc/sysconfig/network-scripts/ifcfg-eth$num
echo "SLAVE=yes" >> /etc/sysconfig/network-scripts/ifcfg-eth$num
sed -i 's/ifenslave.*/& eth'"$num"'/g' /etc/rc.local
done;
echo "alias bond0 bonding" > /etc/modprobe.d/modprobe.conf
echo "options bond0 miimon=100 mode=balance-rr" >> /etc/modprobe.d/modprobe.conf
modprobe bonding
/etc/init.d/network restart
fi
