CentOS 7.2 bond实现网卡聚合链路(双网卡绑定)脚本及验证(适合云平台)

使用bond实现网卡聚合链路脚本:

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1. #!/bin/bash

2. #创建一个名为bond0的链路接口

3. IP=192.168.101.1

4. GATE=192.168.101.254

5. ETH1=eno1

6. ETH2=eno2

7. ETH3=eno3

8. ETH4=eno4

9. modprobebonding

10. cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-bond0

11. DEVICE=bond0

12. TYPE=Bond

13. NAME=bond0

14. BONDING_MASTER=yes

15. BOOTPROTO=static

16. USERCTL=no

17. ONBOOT=yes

18. IPADDR=$IP

19. PREFIX=24

20. GATEWAY=$GATE

21. BONDING_OPTS="mode=1miimon=100"

22. EOF

23. cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-bond1

24. DEVICE=bond1

25. TYPE=Bond

26. NAME=bond1

27. BONDING_MASTER=yes

28. USERCTL=no

29. BOOTPROTO=none

30. ONBOOT=yes

31. BONDING_OPTS="mode=1miimon=100"

32. EOF

33. cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH1

34. TYPE=Ethernet

35. BOOTPROTO=none

36. DEVICE=$ETH1

37. ONBOOT=yes

38. MASTER=bond0

39. SLAVE=yes

40. EOF

41. cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH2

42. TYPE=Ethernet

43. BOOTPROTO=none

44. DEVICE=$ETH2

45. ONBOOT=yes

46. MASTER=bond0

47. SLAVE=yes

48. EOF

49. cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH3

50. TYPE=Ethernet

51. BOOTPROTO=none

52. DEVICE=$ETH3

53. ONBOOT=yes

54. MASTER=bond1

55. SLAVE=yes

56. EOF

57. cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH4

58. TYPE=Ethernet

59. BOOTPROTO=none

60. DEVICE=$ETH4

61. ONBOOT=yes

62. MASTER=bond1

63. SLAVE=yes

64. EOF

65. systemctlrestartnetwork

66. ping$GATE-c1

67. reboot

#!/bin/bash
#创建一个名为bond0的链路接口
IP=192.168.101.1
GATE=192.168.101.254
ETH1=eno1
ETH2=eno2
ETH3=eno3
ETH4=eno4
modprobebonding
cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-bond0
DEVICE=bond0
TYPE=Bond
NAME=bond0
BONDING_MASTER=yes
BOOTPROTO=static
USERCTL=no
ONBOOT=yes
IPADDR=$IP
PREFIX=24
GATEWAY=$GATE
BONDING_OPTS="mode=1miimon=100"
EOF
cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-bond1
DEVICE=bond1
TYPE=Bond
NAME=bond1
BONDING_MASTER=yes
USERCTL=no
BOOTPROTO=none
ONBOOT=yes
BONDING_OPTS="mode=1miimon=100"
EOF
cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH1
TYPE=Ethernet
BOOTPROTO=none
DEVICE=$ETH1
ONBOOT=yes
MASTER=bond0
SLAVE=yes
EOF
cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH2
TYPE=Ethernet
BOOTPROTO=none
DEVICE=$ETH2
ONBOOT=yes
MASTER=bond0
SLAVE=yes
EOF
cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH3
TYPE=Ethernet
BOOTPROTO=none
DEVICE=$ETH3
ONBOOT=yes
MASTER=bond1
SLAVE=yes
EOF
cat<<EOF>/etc/sysconfig/network-scripts/ifcfg-$ETH4
TYPE=Ethernet
BOOTPROTO=none
DEVICE=$ETH4
ONBOOT=yes
MASTER=bond1
SLAVE=yes
EOF
systemctlrestartnetwork
ping$GATE-c1
reboot

验证：

1.查看bond0状态：

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1. [root@localhost~]#cat/proc/net/bonding/bond0

2. EthernetChannelBondingDriver:v3.7.1(April27,2011)

4. BondingMode:fault-tolerance(active-backup)

5. PrimarySlave:None

6. CurrentlyActiveSlave:eno2#当前主接口

7. MIIStatus:up

8. MIIPollingInterval(ms):100

9. UpDelay(ms):0

10. DownDelay(ms):0

12. SlaveInterface:eno2

13. MIIStatus:up

14. Speed:1000Mbps

15. Duplex:full

16. LinkFailureCount:0

17. PermanentHWaddr:2c:76:8a:51:d2:09

18. SlavequeueID:0

20. SlaveInterface:eno1

21. MIIStatus:up

22. Speed:1000Mbps

23. Duplex:full

24. LinkFailureCount:0

25. PermanentHWaddr:2c:76:8a:51:d2:08

26. SlavequeueID:0

[root@localhost~]#cat/proc/net/bonding/bond0
EthernetChannelBondingDriver:v3.7.1(April27,2011)

BondingMode:fault-tolerance(active-backup)
PrimarySlave:None
CurrentlyActiveSlave:eno2#当前主接口
MIIStatus:up
MIIPollingInterval(ms):100
UpDelay(ms):0
DownDelay(ms):0

SlaveInterface:eno2
MIIStatus:up
Speed:1000Mbps
Duplex:full
LinkFailureCount:0
PermanentHWaddr:2c:76:8a:51:d2:09
SlavequeueID:0

SlaveInterface:eno1
MIIStatus:up
Speed:1000Mbps
Duplex:full
LinkFailureCount:0
PermanentHWaddr:2c:76:8a:51:d2:08
SlavequeueID:0

2.测试，宕掉当前主接口，看是否切换

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1. [root@localhost~]#ifdowneno2

2. Device'eno2'successfullydisconnected.

3. [root@localhost~]#cat/proc/net/bonding/bond0

4. EthernetChannelBondingDriver:v3.7.1(April27,2011)

6. BondingMode:fault-tolerance(active-backup)

7. PrimarySlave:None

8. CurrentlyActiveSlave:eno1#切换成功

9. MIIStatus:up

10. MIIPollingInterval(ms):100

11. UpDelay(ms):0

12. DownDelay(ms):0

14. SlaveInterface:eno1

15. MIIStatus:up

16. Speed:1000Mbps

17. Duplex:full

18. LinkFailureCount:0

19. PermanentHWaddr:2c:76:8a:51:d2:08

20. SlavequeueID:0

[root@localhost~]#ifdowneno2
Device'eno2'successfullydisconnected.
[root@localhost~]#cat/proc/net/bonding/bond0
EthernetChannelBondingDriver:v3.7.1(April27,2011)

BondingMode:fault-tolerance(active-backup)
PrimarySlave:None
CurrentlyActiveSlave:eno1#切换成功
MIIStatus:up
MIIPollingInterval(ms):100
UpDelay(ms):0
DownDelay(ms):0

SlaveInterface:eno1
MIIStatus:up
Speed:1000Mbps
Duplex:full
LinkFailureCount:0
PermanentHWaddr:2c:76:8a:51:d2:08
SlavequeueID:0

详细可参考红帽官网