一个成功的网站要具备哪些方面,网站推广营销效果,设计网站公司优选亿企邦,百度知道网页版地址Linux双网卡聚合改造一、环境和需求Linux主机只有一块网卡接到交换机上#xff0c;为了消除交换机的单点#xff0c;新增一台交换机#xff0c;Linux主机端新接一块网卡到新交换机上#xff0c;对这两块网卡做聚合达到目的。二、物理连线使用网线连接新增交换机和新网卡三、…Linux双网卡聚合改造一、环境和需求Linux主机只有一块网卡接到交换机上为了消除交换机的单点新增一台交换机Linux主机端新接一块网卡到新交换机上对这两块网卡做聚合达到目的。二、物理连线使用网线连接新增交换机和新网卡三、停应用对网卡做聚合改造会造成网络中断为了消除对生产的影响建议停止应用后再做改造四、网络聚合改造1)对/etc/modprobe.conf文件新增以下内容# vi /etc/modprobe.confalias bond0 bondingoptions bond0 mode1 miimon100 use_carrier0说明:miimon100那么系统每100ms监测一次链路连接状态如果有一条线路不通就转入另一条线路mode的值表示工作模式mode0表示为负载均衡方式两块网卡都工作。mode1表示提供冗余功能工作方式是主备的工作方式2)建立虚拟网卡配置文件# vi /etc/sysconfig/network-scripts/ifcfg-bond0DEVICEbond0ONBOOTyesBOOTPROTOstaticIPADDR192.168.0.215USERCTLnoNETMASK255.255.255.0NETWORK192.168.0.0BROADCAST192.168.0.255GATEWAY192.168.0.1TYPEEthernet其中IPADDR192.168.0.215是原网卡的IP地址3)更改原有网卡属性#vi /etc/sysconfig/network-scripts/ifcfg-eth0DEVICEeth0ONBOOTyesBOOTPROTOnoneUSERCTLnoMASTERbond0SLAVEyesHWADDR00:0C:29:38:37:234)更改新增网卡属性#vi /etc/sysconfig/network-scripts/ifcfg-eth1DEVICEeth1ONBOOTyesBOOTPROTOnoneUSERCTLnoMASTERbond0SLAVEyesHWADDR00:0c:29:38:37:2d5)用命令/etc/rc.d/init.d/network restart重新启动网络子系统也可以重新启动系统来使bond0生效。# /etc/rc.d/init.d/network restartShutting down interface bond0:[OK]Shutting down loopback interface:[OK]Bringing up loopback interface:[OK]Bringing up interface bond0:[OK]重启网络的时候对IP做PING测试中间有丢包后续又恢复通讯检查IP地址# ifconfigbond0Link encap:EthernetHWaddr 00:0C:29:38:37:23inet addr:192.168.0.214Bcast:192.168.0.255Mask:255.255.255.0UP BROADCAST RUNNING MASTER MULTICASTMTU:1500Metric:1RX packets:48915 errors:0 dropped:0 overruns:0 frame:0TX packets:4804 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:3857250 (3.6 MiB)TX bytes:394142 (384.9 KiB)eth0Link encap:EthernetHWaddr 00:0C:29:38:37:23UP BROADCAST RUNNING SLAVE MULTICASTMTU:1500Metric:1RX packets:26942 errors:0 dropped:0 overruns:0 frame:0TX packets:4754 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:2121514 (2.0 MiB)TX bytes:385269 (376.2 KiB)eth1Link encap:EthernetHWaddr 00:0C:29:38:37:23UP BROADCAST RUNNING SLAVE MULTICASTMTU:1500Metric:1RX packets:21973 errors:0 dropped:0 overruns:0 frame:0TX packets:50 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:1735736 (1.6 MiB)TX bytes:8873 (8.6 KiB)loLink encap:Local Loopbackinet addr:127.0.0.1Mask:255.0.0.0UP LOOPBACK RUNNINGMTU:16436Metric:1RX packets:1375 errors:0 dropped:0 overruns:0 frame:0TX packets:1375 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:0RX bytes:4201832 (4.0 MiB)TX bytes:4201832 (4.0 MiB)# cat /proc/net/bonding/bond0Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)Bonding Mode: fault-tolerance (active-backup)Primary Slave: NoneCurrently Active Slave: eth2MII Status: upMII Polling Interval (ms): 100Up Delay (ms): 0Down Delay (ms): 0Slave Interface: eth2MII Status: upSpeed: 100 MbpsDuplex: fullLink Failure Count: 1Permanent HW addr: b8:ca:3a:f9:6b:33Slave Interface: eth3MII Status: downSpeed: 100 MbpsDuplex: fullLink Failure Count: 2Permanent HW addr: b8:ca:3a:f9:6b:346)设置成聚合开机自启动# vi /etc/rc.d/rc.localifenslave bond0 eth0 eth17)网卡切换测试拔eth0网卡网线查看是否会自动切到eth1网卡上检查丢包情况使用cat /proc/net/bonding/bond0命令查看切到eth1网卡上接回eth0网线不会自动切回到eth0上除非拔出eth1网卡
