RHEL 5.4 IPBonding配置笔记

1           实验环境

操作系统: CentOS Linux 5Kernel2.6.18 -53.el5

网卡说明: 双 网卡(非同品牌型号)名字分别为eth0eth1

网络设置: 192.168.1.201/24

 

2           配置方法

2.1       相 关文件

/etc/sysconfig/network-scripts/ifcfg-bond0

/etc/sysconfig/network-scripts/ifcfg-eth0

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

/etc/modprobe.conf

/etc/rc.local

/proc/net/bonding/bond0

 

2.2       开 始配置

1. 备份eth0eth1 配置文件

# cd /etc/sysconfig/network-scripts

# cp ifcfg-eth0 bak.ifcfg-eth0

# cp ifcfg-eth1 bak.ifcfg-eth1

 

2. 建立ifcfg-bond0

# vi ifcfg-bond0

加入如下 内容:

DEVICE=bond0

ONBOOT=yes

BOOTPROTO=none

BROADCAST=192.168.1.255

IPADDR=192.168.1.201

NETMASK=255.255.255.0

GATEWAY=192.168.1.1

 

3. 编辑ifcfg-eth0

# vi ifcfg-eth0

加入如下 内容覆盖原有内容:

DEVICE=eth0

TYPE=Ethernet

ONBOOT=yes

BOOTPROTO=none

MASTER=bond0

SLAVE=yes

HWADDR=00:16:EC:AE:07:54

 

4. 编辑ifcfg-eth1

# vi ifcfg-eth1

加入如下 内容覆盖原有内容:

DEVICE=eth1

TYPE=Ethernet

ONBOOT=yes

BOOTPROTO=none

MASTER=bond0

SLAVE=yes

HWADDR= 00:50:BA:0C:65:02

 

5. 编辑modprobe.conf

# cd /et    c

# vi modprobe.conf

追加如下 内容:

alias bond0 bonding

options bond0 miimon=100 mode=1

说明:

miimon 表 示链路检查间隔,单位为毫秒;mode 的值表示工作模式,他共有0123456 七种模式,

0 模式: 负载均衡模式,RR 方式,全负载均 衡,需要Switch 侧做Trunk ,可失 效一网卡;

1 模式: 热备模式,不需要Switch 侧支 持;

2 模式: 负载均衡模式,XOR 方式,根据来源MAC

3 模式: 广播模式,所有网卡一起收发数据包,可失效一网卡;

4 模式: 802.3ad 模式,需要Switch 支持802.3ad Dynamic Link Aggregation

5 模式: 负载均衡模式,TLB 方式,半负载均 衡,发送为负载均衡,接收为动态分配,不需要Switch 侧支持,可失效一网卡;

6 模式: 负载均衡模式,ALB 方式,全负载均 衡,网卡需支持动态更改MAC ,不需要Switch 侧 支持,可失效一网卡;

常用的为0,1 两种。

 

6. 编辑rc.local

# vi rc.local

追加如下 内容:

ifenslave bond0 eth0 eth1

route add -net 192.168.1.0 netmask 255.255.255.0 bond0

 

3           结果测试

重启服务器,在开机加载服务有如下提示 输出则说明模块成功加载。

Bringing up interface bond0                         [  OK   ]

Bringing up interface eth0                          [  OK   ]

Bringing up interface eth1                          [  OK   ]

 

3.1       查 看IP 配置

输出信息应该与下方的输出类似

# ifconfig -a

bond0     Link encap:Ethernet  HWaddr 00:16:EC:AE:07:54 

          inet addr:192.168.1.201  Bcast:192.168.1.255  Mask:255.255.255.0

          inet6 addr: fe80::216:ecff:feae:754/64 Scope:Link

          UP BROADCAST RUNNING MASTER MULTICAST  MTU:1500  Metric:1

          RX packets:10452933 errors:0 dropped:0 overruns:0 frame.:0

          TX packets:2245803 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:2313966546 (2.1 GiB)  TX bytes:1240415537 (1.1 GiB)

 

eth0      Link encap:Ethernet  HWaddr 00:16:EC:AE:07:54 

          inet6 addr: fe80::216:ecff:feae:754/64 Scope:Link

          UP BROADCAST RUNNING SLAVE MULTICAST  MTU:1500  Metric:1

          RX packets:10353385 errors:0 dropped:0 overruns:0 frame.:0

          TX packets:2245519 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:2305237371 (2.1 GiB)  TX bytes:1240369619 (1.1 GiB)

          Interrupt:225 Base address:0xc800

 

eth1      Link encap:Ethernet  HWaddr 00:16:EC:AE:07:54 

           inet6 addr: fe80::216:ecff:feae:754/64 Scope:Link

          UP BROADCAST SLAVE MULTICAST  MTU:1500  Metric:1

          RX packets:99554 errors:0 dropped:0 overruns:0 frame.:0

          TX packets:291 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:8729599 (8.3 MiB)  TX bytes:47044 (45.9 KiB)

          Interrupt:217 Base address:0xac00

 

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:12133 errors:0 dropped:0 overruns:0 frame.:0

          TX packets:12133 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:18922380 (18.0 MiB)  TX bytes:18922380 (18.0 MiB)

 

3.2       网 关连通状态

# ping 192.168.1.1

PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.

64 bytes from 192.168.1.1: icmp_seq=1 ttl=255 time=0.608 ms

64 bytes from 192.168.1.1: icmp_seq=2 ttl=255 time=0.593 ms

64 bytes from 192.168.1.1: icmp_seq=3 ttl=255 time=0.800 ms

64 bytes from 192.168.1.1: icmp_seq=4 ttl=255 time=0.515 ms

 

--- 192.168.1.1 ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3000ms

rtt min/avg/max/mdev = 0.515/0.629/0.800/0.104 ms

 

3.3       查 看bond0 状态

# cat /proc/net/bonding/bond0

Ethernet Channel Bonding Driver: v3.1.2 (January 20, 2007)

 

Bonding Mode: fault-tolerance (active-backup)

Primary Slave: None

Currently Active Slave: eth0

MII Status: up

MII Polling Interval (ms): 100

Up Delay (ms): 0

Down Delay (ms): 0

 

Slave Interface: eth0

MII Status: up

Link Failure Count: 1

Permanent HW addr: 00:16:ec:ae:07:54

 

Slave Interface: eth1

MII Status: down

Link Failure Count: 2

Permanent HW addr: 00:50:ba:0c:65:02

 

3.4       Bond 迁移状态

在同一网段用一台机器持续ping Bonding 主机,然后拔掉eth0 的网 线,同时使用其他网络接入服务。

# ping 192.168.1.201

 

Pinging 192.168.1.201 with 32 bytes of data:

 

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time=3ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

Reply from 192.168.1.201: bytes=32 time<1ms TTL=64

 

Ping statistics for 192.168.1.201:

    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

    Minimum = 0ms, Maximum = 0ms, Average = 0ms

#

ping 的同时开一个SSH 登录到主机,并输入# top ,可以看到中间只是顿了一下就恢复了,并没有断;查看bond0 状 态,发现Currently Active Slave 已经切换到eth1

# cat /proc/net/bonding/bond0

Ethernet Channel Bonding Driver: v3.1.2 (January 20, 2007)

 

Bonding Mode: fault-tolerance (active-backup)

Primary Slave: None

Currently Active Slave: eth1

MII Status: up

MII Polling Interval (ms): 100

Up Delay (ms): 0

Down Delay (ms): 0

 

Slave Interface: eth0

MII Status: down

Link Failure Count: 1

Permanent HW addr: 00:16:ec:ae:07:54

 

Slave Interface: eth1

MII Status: up

Link Failure Count: 2

Permanent HW addr: 00:50:ba:0c:65:02

eth0 网 线插回去后,bonding 并不会及时的将工作网卡切换到eth0 , 而是等到eth1 链路失效后才会切换回eth0

再拔掉eth1 的网线查看bond0 状态会发现Currently Active Slave 已经切换回eth0

 

经过测试,实验成功!

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