RedHat6.5双网卡bonding

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:

1. vim /etc/sysconfig/network-scripts/ifcfg-bond0
2. DEVICE=bond0
3. ONBOOT=yes
4. BOOTPROTO=static
5. TYPE=Ethernet
6. IPADDR=192.168.115.50
7. NETMASK=255.255.255.0

2. 修改网卡配置:

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

1. DEVICE=eth1
2. ONBOOT=yes
3. BOOTPROTO=none
4. MASTER=bond0
5. SLAVE=yes
6. USERCTL=no

1. vim /etc/sysconfig/network-scripts/ifcfg-eth2
2. DEVICE=eth2
3. ONBOOT=yes
4. BOOTPROTO=none
5. MASTER=bond0
6. SLAVE=yes
7. USERCTL=no

3. 加载bond模块,在配置文件末尾添加参数

1. vim /etc/modprobe.d/dist.conf

1. 1. alias bond0 bonding
   2. options bond0 mode=0 miimon=100

    

    解析:
       

1. mode 0表示为负载均衡模式,两块网卡都工作
2. mode 1表示冗余模式,一块是工作,一块冗余
3. miimon表示系统检查间隔时间,单位是ms,
4. 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

1. vim /etc/rc.local
2. 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
 

1. [root@oratest0 ~]# ifconfig
2. bond0 Link encap:EthernetHWaddr00:0C:29:44:52:23
3. inet addr:192.168.115.50Bcast:192.168.115.255Mask:255.255.255.0
4. inet6 addr: fe80::20c:29ff:fe44:5223/64Scope:Link
5. UP BROADCAST RUNNING MASTER MULTICAST MTU:1500Metric:1
6. RX packets:878 errors:0 dropped:0 overruns:0 frame:0
7. TX packets:349 errors:0 dropped:0 overruns:0 carrier:0
8. collisions:0 txqueuelen:0
9. RX bytes:81301(79.3KiB) TX bytes:58143(56.7KiB)
10. eth0 Link encap:EthernetHWaddr00:0C:29:44:52:19
11. inet addr:192.168.115.40Bcast:192.168.115.255Mask:255.255.255.0
12. inet6 addr: fe80::20c:29ff:fe44:5219/64Scope:Link
13. UP BROADCAST RUNNING MULTICAST MTU:1500Metric:1
14. RX packets:170 errors:0 dropped:0 overruns:0 frame:0
15. TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
16. collisions:0 txqueuelen:1000
17. RX bytes:15663(15.2KiB) TX bytes:746(746.0 b)
18. eth1 Link encap:EthernetHWaddr00:0C:29:44:52:23
19. UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500Metric:1
20. RX packets:702 errors:0 dropped:0 overruns:0 frame:0
21. TX packets:175 errors:0 dropped:0 overruns:0 carrier:0
22. collisions:0 txqueuelen:1000
23. RX bytes:65260(63.7KiB) TX bytes:27907(27.2KiB)
24. eth2 Link encap:EthernetHWaddr00:0C:29:44:52:23
25. UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500Metric:1
26. RX packets:176 errors:0 dropped:0 overruns:0 frame:0
27. TX packets:174 errors:0 dropped:0 overruns:0 carrier:0
28. collisions:0 txqueuelen:1000
29. RX bytes:16041(15.6KiB) TX bytes:30236(29.5KiB)
30. lo Link encap:LocalLoopback
31. inet addr:127.0.0.1Mask:255.0.0.0
32. inet6 addr:::1/128Scope:Host
33. UP LOOPBACK RUNNING MTU:16436Metric:1
34. RX packets:10 errors:0 dropped:0 overruns:0 frame:0
35. TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
36. collisions:0 txqueuelen:0
37. 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

1. cat /proc/net/bonding/bond0

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