linux下多网卡绑定.docx

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1、linux下多网卡绑定假定将eth0,eth1,eth2,eth3绑定成bond0,步骤如下：（1） #vi/etc/modprobe.conf, 添加如下2行：            aliasbond0bonding            optionsbondingmiimon=100mode=4当mode＝0时，交换机相应端口不需要做trunk，但是从节点上ping网关（192.*.*.*）有较大的延时。解决此问题的办法是把mode改成4，同时配置交换机相应端口开启链路聚合并捆绑为trunk。在modprobe.conf文件中，miimon参数用来监测网卡物理连接，

2、建议至少设为100mode参数用来设置绑定模式0 负载均衡(roundrobin策略)1active/backup模式，同一时间只有一块网卡使用。2 负载均衡（xor算法）3 广播模式4802.3ad模式，lagp协议，带宽翻倍。模式不能写错这里很容易出现不稳定的情况，多半是这里模式选择错了，所以在实施的时候需要小心，把模式确定了，然后在动手。（2）修改/etc/sysconfig/network-scripts/目录下的ifcfg-bond0,ifcfg-eth0,ifcfg-eth1,ifcfg-eth2,ifcfg-eth3.具体内容如下：[root@io102net

3、work-scripts]#pwd/etc/sysconfig/network-scripts[root@io102network-scripts]#catifcfg-bond0DEVICE=bond0BOOTPROTE=staticONBOOT=yesIPADDR=192.*.*.*NETMASK=255.255.255.0USERTCL=noGATEWAY=192.*.*.*[root@io102network-scripts]#catifcfg-eth0DEVICE=eth0BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=no

4、MASTER=bond0SLAVE=yes[root@io102network-scripts]#catifcfg-eth1DEVICE=eth1BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yes[root@io102network-scripts]#catifcfg-eth2DEVICE=eth2BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yes[root@io102network-scripts]#c

5、atifcfg-eth3DEVICE=eth3BOOTPROTO=noneONBOOT=yesTYPE=EthernetUSERTCL=noMASTER=bond0SLAVE=yes（3）查看bond0的状态[root@io102~]#more/proc/net/bonding/bond0EthernetChannelBondingDriver:v2.6.3-rh(June8,2005)BondingMode:IEEE802.3adDynamiclinkaggregationMIIStatus:upMIIPollingInterval(ms):100UpDelay(ms):

6、0DownDelay(ms):0802.3adinfoLACPrate:slowActiveAggregatorInfo:      AggregatorID:1      Numberofports:4      ActorKey:17      PartnerKey:480      PartnerMacAddress:00:12:f2:cd:68:00SlaveInterface:eth0MIIStatus:upLinkFailureCount:0PermanentHWaddr:00:1e:0b:73:56:26AggregatorID:1SlaveInterface

7、:eth1MIIStatus:upLinkFailureCount:0PermanentHWaddr:00:1e:0b:73:56:a2AggregatorID:1SlaveInterface:eth2MIIStatus:upLinkFailureCount:0PermanentHWaddr:00:1e:0b:d5:34:d2AggregatorID:1SlaveInterface:eth3MIIStatus:upLinkFailureCount:0PermanentHWaddr:00:1e:0b:d5:34:d0