RedHat6.5 bond

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本文介绍如何在RHEL6.5系统中配置Bonding，包括创建bond0文件、修改网卡配置、加载bond模块等步骤，并提供了一个标准配置示例。

环境:RHEL 6.5

注意:此处的机器环境是3网卡,我用eth0连ssh的,但是一直掉...

需要关闭NetworkManager,并将其设置为开机不启动(这个玩意儿真烦)

1. 创建bond0文件:

vim /etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
ONBOOT=yes
BOOTPROTO=static
TYPE=Ethernet
IPADDR=192.168.115.50
NETMASK=255.255.255.0

2. 修改网卡配置:

vim /etc/sysconfig/network-scripts/ifcfg-eth1


DEVICE=eth1
ONBOOT=yes
BOOTPROTO=none
MASTER=bond0
SLAVE=yes
USERCTL=no

vim /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth2
ONBOOT=yes
BOOTPROTO=none
MASTER=bond0
SLAVE=yes
USERCTL=no

3. 加载bond模块,在配置文件末尾添加参数

vim /etc/modprobe.d/dist.conf

alias bond0 bonding
options bond0 mode=0 miimon=100 

    解析:

mode 0表示为负载均衡模式,两块网卡都工作
mode 1表示冗余模式,一块是工作,一块冗余
miimon表示系统检查间隔时间,单位是ms,
例如:每100ms检查一次,当发现一条线路不通,就转入另一条

4. 将bond0设置为开机自动加载

vim /etc/rc.local
ifenslave bond0 eth1 eth2

5. reboot ,之后使用ifconfig查看bond0和eht1,eth2两块网卡的MAC地址是否相同

注意不管bond 0 还是bond 1,都是三者相同,因为在交换机的时候需要识别MAC然后发送到对应的MAC上,不相同是不对的,

假如不相同,回去检查NetworkManager是不是关了

来个标准的:

注意

[root@oratest0 ~]# ifconfig 
bond0     Link encap:Ethernet  HWaddr 00:0C:29:44:52:23  
          inet addr:192.168.115.50  Bcast:192.168.115.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe44:5223/64 Scope:Link
          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1
          RX packets:878 errors:0 dropped:0 overruns:0 frame:0
          TX packets:349 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:81301 (79.3 KiB)  TX bytes:58143 (56.7 KiB)
eth0      Link encap:Ethernet  HWaddr 00:0C:29:44:52:19  
          inet addr:192.168.115.40  Bcast:192.168.115.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe44:5219/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:170 errors:0 dropped:0 overruns:0 frame:0
          TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:15663 (15.2 KiB)  TX bytes:746 (746.0 b)
eth1      Link encap:Ethernet  HWaddr 00:0C:29:44:52:23  
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:702 errors:0 dropped:0 overruns:0 frame:0
          TX packets:175 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:65260 (63.7 KiB)  TX bytes:27907 (27.2 KiB)
eth2      Link encap:Ethernet  HWaddr 00:0C:29:44:52:23  
          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1
          RX packets:176 errors:0 dropped:0 overruns:0 frame:0
          TX packets:174 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:16041 (15.6 KiB)  TX bytes:30236 (29.5 KiB)
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:10 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:840 (840.0 b)  TX bytes:840 (840.0 b)

6. 查看bond状态,能实时查看两块网卡的工作状态

cat /proc/net/bonding/bond0