Linux下实现双网卡负载均衡
tJbwhy
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tJbwhy 发表于 2008-08-07 13:03
Linux下实现双网卡负载均衡
系统环境：RHEL5
硬件环境：IBM X3650 一、建立虚拟网络接口ifcfg-bond0文件 [root@yangwenjun ~]# cd /etc/sysconfig/network-scripts/ [root@yangwenjun network-scripts]# cp ifcfg-eth0 ifcfg-bond0 其内容为： [root@yangwenjun network-scripts]# more ifcfg-bond0 # Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet DEVICE=bond0 BROADCAST=192.168.1.255 IPADDR=192.168.1.3 NETMASK=255.255.255.0 NETWORK=192.168.1.0 MTU=1500 GATEWAY=192.168.1.1 [root@yangwenjun network-scripts]# 二、编辑原有网卡eth0和eth信息文件 使其内容为： [root@yangwenjun network-scripts]# more ifcfg-eth0 # Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet DEVICE=eth0 BOOTPROTO=none ONBOOT=yes TYPE=Ethernet MASTER=bond0 slave=yes [root@yangwenjun network-scripts]# more ifcfg-eth1 # Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet DEVICE=eth1 BOOTPROTO=none ONBOOT=yes TYPE=Ethernet MASTER=bond0 slave=yes [root@yangwenjun network-scripts]# 三、编辑/etc/modprobe.conf加入下面两行 [root@yangwenjun network-scripts]# vi /etc/modprobe.conf alias bond0 bonding options bond0 miimon=100 mode=1 加入后我的modprobe.conf内容为： [root@yangwenjun network-scripts]# more /etc/modprobe.conf alias eth0 bnx2 alias eth1 bnx2 alias scsi_hostadapter aacraid alias scsi_hostadapter1 ata_piix alias peth0 bnx2 alias bond0 bonding options bond0 miimon=100 mode=1 四、编辑/etc/rc.d/rc.local文件，加入 ifenslave bond0 eth0 eth1 重新启动后，负载均衡就能正常工作了，可以用ifconfig查看具体信息 [root@yangwenjun network-scripts]# ifconfig bond0 Link encap:Ethernet HWaddr 00:1A:64:6A:55:98 inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21a:64ff:fe6a:5598/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:985369 errors:0 dropped:0 overruns:0 frame:0 TX packets:804306 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:148943796 (142.0 MiB) TX bytes:2097755332 (1.9 GiB) eth0 Link encap:Ethernet HWaddr 00:1A:64:6A:55:98 inet6 addr: fe80::21a:64ff:fe6a:5598/64 Scope:Link UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:984133 errors:0 dropped:0 overruns:0 frame:0 TX packets:804292 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:148805154 (141.9 MiB) TX bytes:2097751381 (1.9 GiB) eth1 Link encap:Ethernet HWaddr 00:1A:64:6A:55:98 inet6 addr: fe80::21a:64ff:fe6a:5598/64 Scope:Link UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:1236 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:138642 (135.3 KiB) TX bytes:4275 (4.1 KiB) Interrupt:16 Memory:ca000000-ca011100 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:24 errors:0 dropped:0 overruns:0 frame:0 TX packets:24 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1680 (1.6 KiB) TX bytes:1680 (1.6 KiB) peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:984026 errors:0 dropped:0 overruns:0 frame:0 TX packets:1657683 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:152730203 (145.6 MiB) TX bytes:2150908601 (2.0 GiB) Interrupt:21 Memory:ce000000-ce011100 vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:804296 errors:0 dropped:0 overruns:0 frame:0 TX packets:984134 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2097747314 (1.9 GiB) TX bytes:148805214 (141.9 MiB) xenbr0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF UP BROADCAST RUNNING NOARP MTU:1500 Metric:1 RX packets:1532 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:132808 (129.6 KiB) TX bytes:0 (0.0 b) [root@yangwenjun network-scripts]# |