RHEL5.9 bond配置

一、配置bond

1、ifcfg-bond0

# Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet PCIe

DEVICE=bond0

BOOTPROTO=static

ONBOOT=yes

IPADDR=10.0.40.20

NETMASK=255.255.255.0

GATEWAY=10.0.40.254

USERCTL=no

2、ifcfg-eth0

# Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet PCIe

DEVICE=eth0

BOOTPROTO=static

ONBOOT=yes

MASTER=bond0

SLAVE=yes

USERCTL=no

3、ifcfg-eth1

# Broadcom Corporation NetXtreme BCM5720 Gigabit Ethernet PCIe

DEVICE=eth1

BOOTPROTO=static

ONBOOT=yes

MASTER=bond0

SLAVE=yes

USERCTL=no

4、/etc/modprobe.conf配置

alias eth0 tg3

alias eth1 tg3

alias eth2 bnx2

alias eth3 bnx2

alias scsi_hostadapter megaraid_sas

alias scsi_hostadapter1 ata_piix

alias scsi_hostadapter2 lpfc

alias usb0 cdc_ether

alias bond0 bonding

options bond0 miimon=100 mode=1

注：网卡绑定需要同型号网卡做bonding，如果eth0和eth2做绑定后，测试冗余性时网络故障后不会切换，但是查看cat /proc/net/bongding/bond0有绑定信息。

二、查看状态

1、重启网络

 /etc/init.d/network restart

2、查看bond运行状态

cat /proc/net/bonding/bond0 

Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)

Bonding Mode: load balancing (round-robin)

MII Status: up

MII Polling Interval (ms): 1

Up Delay (ms): 0

Down Delay (ms): 0

Slave Interface: eth0

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 0

Permanent HW addr: 00:50:56:a2:4d:00

Slave Interface: eth1

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 0

Permanent HW addr: 00:50:56:a2:4d:01

三、测试bond

1、断开eth1网口

[root@test1 network-scripts]# ifdown eth0

2、查看bond状态，eth0已经掉线，现在eth1接管

[root@test1 network-scripts]# cat /proc/net/bonding/bond0 

Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)

Bonding Mode: load balancing (round-robin)

MII Status: up

MII Polling Interval (ms): 1

Up Delay (ms): 0

Down Delay (ms): 0

Slave Interface: eth1

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 0

Permanent HW addr: 00:50:56:a2:4d:01

3、激活eth1

[root@test1 network-scripts]# ifup eth0

4、查看bond状态，eth0上线，但是网络流量还是在eth1上跑，eth0作为备份。（之前eth0是承载流量）

[root@test1 network-scripts]# cat /proc/net/bonding/bond0 

Ethernet Channel Bonding Driver: v3.4.0-1 (October 7, 2008)

Bonding Mode: load balancing (round-robin)

MII Status: up

MII Polling Interval (ms): 1

Up Delay (ms): 0

Down Delay (ms): 0

Slave Interface: eth1

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 0

Permanent HW addr: 00:50:56:a2:4d:01

Slave Interface: eth0

MII Status: up

Speed: 100 Mbps

Duplex: full

Link Failure Count: 0

Permanent HW addr: 00:50:56:a2:4d:00