Linux绑定网卡

 

1.ethtool ethX #查询网卡的信息，确定要绑定的网卡

 

Settings for eth0:
 Supported ports: [ FIBRE ]
 Supported link modes:   10000baseT/Full
 Supported pause frame use: No
 Supports auto-negotiation: No
 Advertised link modes:  10000baseT/Full
 Advertised pause frame use: No
 Advertised auto-negotiation: No
 Speed: 10000Mb/s
 Duplex: Full
 Port: Other
 PHYAD: 0
 Transceiver: external
 Auto-negotiation: off
 Supports Wake-on: d
 Wake-on: d
 Current message level: 0x00000007 (7)
          drv probe link
 Link detected: no
 
Settings for eth2:
 Supported ports: [ TP ]
 Supported link modes:   1000baseT/Full
                         10000baseT/Full
 Supported pause frame use: Symmetric
 Supports auto-negotiation: Yes
 Advertised link modes:  1000baseT/Full
 Advertised pause frame use: No
 Advertised auto-negotiation: Yes
 Speed: 1000Mb/s
 Duplex: Full
 Port: Twisted Pair
 PHYAD: 0
 Transceiver: external
 Auto-negotiation: on
 MDI-X: Unknown
 Supports Wake-on: g
 Wake-on: g
 Current message level: 0x0000000f (15)
          drv probe link timer
 Link detected: yes

 

2.我要绑定的是普通的网卡（eth2,eth3），建立绑定网卡，编辑原来的网卡配置文件
##建立bond0
vim /etc/sysconfig/network-scripts/ifcfg-bond0

 

DEVICE=bond0
ONBOOT=yes
BOOTPROTO=static
IPADDR=10.38.3.X
NETMASK=255.255.255.0
GATEWAY=10.38.3.X
DNS1=X.X.X.X
USERCTL=no
BONDING_MASTER=yes
BONDING_OPTS="mode=1 miimon=100"

 

#编辑eth2和 eth3

 

[root@KSEDI-02 ~]# more /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
#TYPE=Ethernet

USERCTL=no
ONBOOT=yes
MASTER=bond0
SLAVE=yes
#NM_CONTROLLED=yes
BOOTPROTO=none

 

vim /etc/sysconfig/network-scripts/ifcfg-eth3

 

DEVICE=eth3
#TYPE=Ethernet
USERCTL=no
ONBOOT=no
MASTER=bond0
SLAVE=yes
#NM_CONTROLLED=yes
BOOTPROTO=none

 

#创建配置文件
vim /etc/modprobe.conf

alias bond0 bonding
options bond0 miimon=100 mode=1

 

#编辑添加开机自动执行
vim /etc/rc.d/rc.local
#添加到最后
ifenslave bond0 eth2 eth3

 

3.网卡测试
ifconfig eth2 down
ifconfig eth2 up
ifconfig eth3 down
ifconfig eth3 up