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CentOS6.2网卡设置

  • 时间:2020-02-20 13:19 编辑: 来源: 阅读:
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摘要:CentOS6.2网卡设置
下面主要介绍在CentOS6.2下使用系统自带的bonding进行网卡绑定的详细步骤。 注意:请在配置前关闭NetworkManager服务 [root@h63 ~]# service NetworkManager status && service NetworkManager start 网卡绑定一次可以绑定多个网卡,你可以使用ifconfig -a查看你的网卡信息,例如: [root@h63 ~]# ifconfig -a em1       Link encap:Ethernet  HWaddr 78:2B:CB:30:08:03           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1           RX packets:48236002 errors:0 dropped:0 overruns:0 frame:0           TX packets:16156472 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:4838973371 (4.5 GiB)  TX bytes:1301118550 (1.2 GiB)           Interrupt:36 Memory:d6000000-d6012800 em2       Link encap:Ethernet  HWaddr 78:2B:CB:30:08:05           UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1           RX packets:42385720 errors:0 dropped:0 overruns:0 frame:0           TX packets:7283526 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:4307780986 (4.0 GiB)  TX bytes:466840625 (445.2 MiB)           Interrupt:48 Memory:d8000000-d8012800 em3       Link encap:Ethernet  HWaddr 78:2B:CB:30:08:07           BROADCAST MULTICAST  MTU:1500  Metric:1           RX packets:0 errors:0 dropped:0 overruns:0 frame:0           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)           Interrupt:32 Memory:da000000-da012800 em4       Link encap:Ethernet  HWaddr 78:2B:CB:30:08:09            BROADCAST MULTICAST  MTU:1500  Metric:1           RX packets:0 errors:0 dropped:0 overruns:0 frame:0           TX packets:0 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)           Interrupt:42 Memory:dc000000-dc012800 这里有4个网卡,分别是em1、em2、em3和em4,我们把em1和em2做一个绑定,绑定模式为6(关于网卡绑定模式的介绍请看Linux网卡绑定探析),首先我给给网卡绑定后的设备起个名字bond0(名称可以自定义),并创建: [root@h63 ~]# vim /etc/sysconfig/network-scripts/ifcfg-bond0 DEVICE=bond0        #设备名称 BOOTPROTO=static      #静态IP ONBOOT=yes          #自动启动 IPADDR=172.16.16.63    #设备绑定的IP GATEWAY=172.16.23.254       #设备绑定的网关 NETMASK=255.255.248.0    #设备绑定的掩码 TYPE=Ethernet         #设备绑定的类型 编辑需要绑定的网卡: [root@h63 ~]# vim /etc/sysconfig/network-scripts/ifcfg-em1 DEVICE=em1 BOOTPROTO=none ONBOOT=yes MASTER=bond0  #绑定后的设备名称 SLAVE=yes TYPE=Ethernet [root@h63 ~]# vim /etc/sysconfig/network-scripts/ifcfg-em2 DEVICE=em2 BOOTPROTO=none ONBOOT=yes MASTER=bond0  #绑定后的设备名称 SLAVE=yes TYPE=Ethernet 说明:配置网卡时不要填写IP地址和MAC地址 配置加载模式设置: [root@h63 ~]# vim /etc/modprobe.conf alias bond0 bonding options bond0 miimon=100 mode=6 说明:mode是网卡绑定的模式,此处是模式6 也可以在/etc/modprobe.d/下创建一个文件: [root@h63 ~]# vim /etc/modprobe.d/bond alias bond0 bonding options bond0 miimon=100 mode=6 绑定配置完成,重启网络服务 [root@h63 ~]#service network restart 查看网卡绑定的情况: [root@h63 ~]# cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.6.0 (September 26, 2009) Bonding Mode: adaptive load balancing Primary Slave: None Currently Active Slave: em1 MII Status: up MII Polling Interval (ms): 100 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: em1 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 78:2b:cb:30:08:03 Slave queue ID: 0 Slave Interface: em2 MII Status: up Speed: 1000 Mbps Duplex: full Link Failure Count: 0 Permanent HW addr: 78:2b:cb:30:08:05 Slave queue ID: 0 至此,网卡绑定就完成了。有不对的地方,还请指教。  
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