在linux下實(shí)現(xiàn)負(fù)載均衡我們已經(jīng)對(duì)它的配置說過很多了，現(xiàn)在我們介紹的是關(guān)于在這個(gè)系統(tǒng)下的雙網(wǎng)卡負(fù)載均衡的設(shè)定過程，總的可以分為四個(gè)步驟，首先我們要對(duì)虛擬網(wǎng)絡(luò)接口文件進(jìn)行改動(dòng)，然后是對(duì)網(wǎng)卡的信息文件的改動(dòng)，之后是兩個(gè)文件的編輯。

雙網(wǎng)卡負(fù)載均衡1:

建立虛擬網(wǎng)絡(luò)接口ifcfg-bond0文件

[root@yangwenjun ~]# cd /etc/sysconfig/network-scripts/
[root@yangwenjun network-scripts]# cp ifcfg-eth0 ifcfg-bond0
其內(nèi)容為:
[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]#

雙網(wǎng)卡負(fù)載均衡2:

編輯原有網(wǎng)卡eth0和eth信息文件，使其內(nèi)容為:

[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]#

雙網(wǎng)卡負(fù)載均衡3:

編輯/etc/modprobe.conf加入下面兩行

[root@yangwenjun network-scripts]# vi /etc/modprobe.conf
alias bond0 bonding
options bond0 miimon=100 mode=1
加入后我的modprobe.conf內(nèi)容為:
[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

#p#雙網(wǎng)卡負(fù)載均衡4:

編輯/etc/rc.d/rc.local文件,加入ifenslave bond0 eth0 eth1;重新啟動(dòng)后,負(fù)載均衡就能正常工作了,可以用ifconfig查看具體信息

[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)