服务器做网卡绑定
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目标：Linux下多网卡虚拟一个网卡，使其一网卡坏掉不影响网络使用。步骤：
1、修改eth0、eth1配置文件
ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
MASTER=bond0
SLAVE=yes
ifcfg-eth1
DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
MASTER=bond0
SLAVE=yes
2、配置虚拟网卡
vi /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
BOOTPROTO=none
BROADCAST=192.168.1.255
IPADDR=192.168.1.97
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
TYPE=Ethernet
GATEWAY=192.168.1.1
USERCTL=no
3、编辑modules.conf
vi /etc/modules.conf
alias bond0 bonding
options bond0 miimon=100 mode=1 primary=eth0
4、添加rc.local
modprobe bonding miimon=100 mode=1
ifconfig
bond0 Link encap:Ethernet HWaddr 00:0C:29:20:C9:4A
inet addr:192.168.1.97 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe20:c94a/64 Scope:Link
UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:1065 errors:0 dropped:0 overruns:0 frame:0
TX packets:694 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0
RX bytes:102157 (99.7 KiB) TX bytes:104152 (101.7 KiB)
eth0 Link encap:Ethernet HWaddr 00:0C:29:20:C9:4A
inet6 addr: fe80::20c:29ff:fe20:c94a/64 Scope:Link
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:981 errors:0 dropped:0 overruns:0 frame:0
TX packets:697 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:90816 (88.6 KiB) TX bytes:105086 (102.6 KiB) Interrupt:185 Base address:0x1400
eth1 Link encap:Ethernet HWaddr 00:0C:29:20:C9:4A
inet6 addr: fe80::20c:29ff:fe20:c94a/64 Scope:Link
UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:89 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:11641 (11.3 KiB) TX bytes:468 (468.0 b)
Interrupt:169 Base address:0x1480