四个步骤完成双网卡负载均衡(1)

文章摘要：如何完成双网卡负载均衡呢？我们将为大家展示linux系统下的设置过程，希望大家从文中能总结出方法，此文仅供参考。

在linux下实现负载均衡我们已经对它的配置说过很多了，现在我们介绍的是关于在这个系统下的双网卡负载均衡的设定过程，总的可以分为四个步骤，首先我们要对虚拟网络接口文件进行改动，然后是对网卡的信息文件的改动，之后是两个文件的编辑。

双网卡负载均衡1:

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]#

双网卡负载均衡2:

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]#

双网卡负载均衡3:

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

编辑推荐

负载均衡技术基础专题

当前，无论在企业网、园区网还是在广域网上，即使按照当时最优配置建设的网络，业务量的发展都超出了过去..

双网卡负载均衡4:

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)