在linux(redhat)下双网卡负载均衡(lacp).docx

（一）linux配置#cat /boot/config-kernel-version |grep -i bondingCONFIG_BONDING=m返回CONFIG_BONDING=m表示支持，否则需要编译内核使它支持bonding也可以用：查看一下内核是否已经支持bonding： modinfo bonding第一步：创建一个ifcfg-bondX# touch /etc/sysconfig/network-scripts/ifcfg-bond0 新建一个bond0配置文件# cat /etc/sysconfig/network-scripts/ifcfg-bond0DEVICE=bond0BOOTPROTO=staticIPADDR=1.1.1.2NETMASK=255.255.255.0BROADCAST=1.1.1.255NETWORK=1.1.1.0GATEWAY=1.1.1.1ONBOOT=yesTYPE=Ethernet编辑ifcfg-bond0如上第二步：修改/etc/sysconfig/network-scripts/ifcfg-ethX这个实验中把网卡1和2绑定，修改/etc/sysconfig/network-scripts/ifcfg-ethX相应网卡配置如下：# cat /etc/sysconfig/network-scripts/ifcfg-eth1TYPE=EthernetDEVICE=eth1HWADDR=00:d0:f8:40:f1:a0网卡1macBOOTPROTO=noneONBOOT=yesUSERCTL=noMASTER=bond0SLAVE=yes# cat /etc/sysconfig/network-scripts/ifcfg-eth2TYPE=EthernetDEVICE=eth2HWADDR=00:d0:f8:00:0c:0c网卡2macBOOTPROTO=noneONBOOT=yesUSERCTL=noMASTER=bond0SLAVE=yes第三步：配置/etc/modprobe.conf，添加alias bond0 bonding# cat /etc/modprobe.confalias eth0 e100alias snd-card-0 snd-intel8x0options snd-card-0 index=0 options snd-intel8x0 index=0 remove snd-intel8x0 { /usr/sbin/alsactl store 0 /dev/null 21 || : ; }; /sbin/modprobe -r --ignore-remove snd-intel8x0alias eth1 8139toooptions 3c501 irq=3 alias eth2 tulip上面是三网卡本身的配置如果要绑定和做lacp只要再加上下面两条配置alias bond0 bonding绑定options bond0 miimon=100 mode=4 mode=4是lacp第四步：配置/etc/rc.d/rc.local，添加需要绑定的网卡# cat /etc/rc.d/rc.local touch /var/lock/subsys/local配置本身就有这条命令ifenslave bond0 eth1 eth2这条命令是添加需要绑定的网卡1和2到这里就完成bonding的配置了可以查看一下第五步：重启网络服务和重启pc#service network restart 重启网络服务# shutdown -r now重启pc重启后可以查看bonding情况：网卡1和2 都绑定上了，模式为802.3ad# cat /proc/net/bonding/bond0Ethernet Channel Bonding Driver: v3.0.3 (March 23, 2006)Bonding Mode: IEEE 802.3ad Dynamic link aggregationTransmit Hash Policy: layer2 (0)MII Status: upMII Polling Interval (ms): 100Up Delay (ms): 0Down Delay (ms): 0802.3ad infoLACP rate: slowActive Aggregator Info: Aggregator ID: 1 Number of ports: 2 Actor Key: 9 Partner Key: 1 Partner Mac Addre