系統環境：CentOS 7.4
將兩塊網卡eth0, eth1綁定成一塊網卡bond0實現網口負載平衡和容錯能力
bond0信息如下
bond0的IP地址：192.168.100.100/24
bond0的網關：192.168.100.1
bond0的主DNS：202.106.0.20
bond0的從DNS：8.8.8.8
#!/bin/bash
# by: ZDF
#
Bond_IP_ADDR=192.168.100.100
Bond_NET_PREFIX=24
Bond_GAT_EWAY=192.168.100.1
Bond_DNS_1=202.106.0.20
Bond_DNS_2=8.8.8.8
Bond_Level=0
NetDevice_1=eth0
NetDevice_2=eth1
find /etc/sysconfig/network-scripts -iname ifcfg-* -not \( -iname "ifcfg-lo" -o -iname "*.bak" \) -exec mv {} {}.bak \;
if [ $? -ne 0 ];then
exit 3
fi
touch /etc/sysconfig/network-scripts/ifcfg-bond$Bond_Level
cat > /etc/sysconfig/network-scripts/ifcfg-bond$Bond_Level << EOF
NAME=bond$Bond_Level
DEVICE=bond$Bond_Level
ONBOOT=yes
TYPE=Ethernet
BOOTPROTO=static
IPADDR=$Bond_IP_ADDR
PREFIX=$Bond_NET_PREFIX
GATEWAY=$Bond_GAT_EWAY
DNS1=$Bond_DNS_1
DNS2=$Bond_DNS_2
TYPE=Bond
BONDING_MASTER=yes
USERCTL=no
BONDING_OPTS=“miimon=100 mode=$Bond_Level”
EOF
touch /etc/sysconfig/network-scripts/ifcfg-$NetDevice_1
cat > /etc/sysconfig/network-scripts/ifcfg-$NetDevice_1 << EOF
NAME=$NetDevice_1
DEVICE=$NetDevice_1
ONBOOT=yes
BOOTPROTO=none
TYPE=Ethernet
MASTER=bond$Bond_Level
SLAVE=yes
USERCTL=no
EOF
touch /etc/sysconfig/network-scripts/ifcfg-$NetDevice_2
cat > /etc/sysconfig/network-scripts/ifcfg-$NetDevice_2 << EOF
NAME=$NetDevice_2
DEVICE=$NetDevice_2
ONBOOT=yes
BOOTPROTO=none
TYPE=Ethernet
MASTER=bond$Bond_Level
SLAVE=yes
USERCTL=no
EOF
ifdown $NetDevice_1
ifup $NetDevice_1
ifdown $NetDevice_2
ifup $NetDevice_2
ifup bond$Bond_Level
systemctl restart network.service
echo
echo -e "\033[32;1m$(cat /sys/class/net/bonding_masters)\033[m"
cat /proc/net/bonding/bond$Bond_Level