Linux系统之Bonding网卡绑定配置方法

Linux系统之Bonding网卡绑定配置方法

一、检查本地系统环境

1.检查系统版本

[root@Server001 ~]# cat /etc/os-release  
NAME="CentOS Linux" 
VERSION="7 (Core)" 
ID="centos" 
ID_LIKE="rhel fedora" 
VERSION_ID="7" 
PRETTY_NAME="CentOS Linux 7 (Core)" 
ANSI_COLOR="0;31" 
CPE_NAME="cpe:/o:centos:centos:7" 
HOME_URL="https://www.centos.org/" 
BUG_REPORT_URL="https://bugs.centos.org/" 
 
CENTOS_MANTISBT_PROJECT="CentOS-7" 
CENTOS_MANTISBT_PROJECT_VERSION="7" 
REDHAT_SUPPORT_PRODUCT="centos" 
REDHAT_SUPPORT_PRODUCT_VERSION="7"

2.查看服务器网卡

[root@Server001 network-scripts]# ifconfig  -a 
bond0: flags=5123<UP,BROADCAST,MASTER,MULTICAST>  mtu 1500 
        inet 192.168.30.122  netmask 255.255.255.0  broadcast 192.168.30.255 
        ether a6:ad:e5:84:f0:6e  txqueuelen 1000  (Ethernet) 
        RX packets 0  bytes 0 (0.0 B) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 0  bytes 0 (0.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 
        inet 192.168.3.55  netmask 255.255.255.0  broadcast 192.168.3.255 
        inet6 fe80::2a6e:d4ff:fe89:8720  prefixlen 64  scopeid 0x20<link> 
        ether 28:6e:d4:89:87:20  txqueuelen 1000  (Ethernet) 
        RX packets 2256  bytes 439140 (428.8 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 428  bytes 68770 (67.1 KiB) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 
        inet6 fe80::2a6e:d4ff:fe8a:3299  prefixlen 64  scopeid 0x20<link> 
        ether 28:6e:d4:8a:32:99  txqueuelen 1000  (Ethernet) 
        RX packets 1617  bytes 386452 (377.3 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 7  bytes 586 (586.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
eth2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 
        inet6 fe80::2a6e:d4ff:fe88:f490  prefixlen 64  scopeid 0x20<link> 
        ether 28:6e:d4:88:f4:90  txqueuelen 1000  (Ethernet) 
        RX packets 1617  bytes 386452 (377.3 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 7  bytes 586 (586.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536 
        inet 127.0.0.1  netmask 255.0.0.0 
        inet6 ::1  prefixlen 128  scopeid 0x10<host> 
        loop  txqueuelen 1000  (Local Loopback) 
        RX packets 0  bytes 0 (0.0 B) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 0  bytes 0 (0.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

二、创建网卡配置文件

1.进入网卡配置文件目录

[root@Server001 ~]# cd /etc/sysconfig/network-scripts/ 
[root@Server001 network-scripts]# ls 
ifcfg-bond0  ifdown-eth   ifdown-ppp       ifdown-tunnel  ifup-ippp   ifup-post    ifup-TeamPort      network-functions-ipv6 
ifcfg-eth0   ifdown-ippp  ifdown-routes    ifup           ifup-ipv6   ifup-ppp     ifup-tunnel 
ifcfg-lo     ifdown-ipv6  ifdown-sit       ifup-aliases   ifup-isdn   ifup-routes  ifup-wireless 
ifdown       ifdown-isdn  ifdown-Team      ifup-bnep      ifup-plip   ifup-sit     init.ipv6-global 
ifdown-bnep  ifdown-post  ifdown-TeamPort  ifup-eth       ifup-plusb  ifup-Team    network-functions

2.拷贝eth0的网卡配置文件

[root@Server001 network-scripts]# cp ifcfg-eth0 ifcfg-eth1
[root@Server001 network-scripts]# cp ifcfg-eth0 ifcfg-eth2 
[root@Server001 network-scripts]# cp ifcfg-eth0 ifcfg-bond0

3.修改bond0网卡配置文件

[root@Server001 network-scripts]# cat ifcfg-bond0  
DEVICE=bond0 
BOOTPROTO=none 
TYPE=bond0 
ONBOOT=yes 
IPADDR=192.168.30.122 
NETMASK=255.255.255.0

4.修改eth1网卡配置文件

[root@Server001 network-scripts]# cat ifcfg-eth1 
DEVICE=eth1 
BOOTPROTO=none 
TYPE=Ethernet 
MASTER=bond0 
SLAVE=yes

5.修改eth2网卡配置文件

[root@Server001 network-scripts]# cat ifcfg-eth2 
DEVICE=eth2 
BOOTPROTO=none 
TYPE=Ethernet 
MASTER=bond0 
SLAVE=yes

三、创建bonding的配置文件

1.编辑bonding.conf

[root@node network-scripts]# vim /etc/modprobe.d/bonding.conf 
[root@node network-scripts]# cat /etc/modprobe.d/bonding.conf 
alias bond0 bonding 
options bonding mode=1 miimon=100 
 
注：关于mode的说明 mode=0 //平衡循环 mode=1 //主备 mode=3 //广播 mode=4 //链路聚合

2.停止 NetworkManager 服务

systemctl stop NetworkManager 
systemctl disable NetworkManage

3.加载 bonding 模块

[root@Server001 network-scripts]# lsmod |grep bonding 
[root@Server001 network-scripts]#  modprobe bonding 
[root@Server001 network-scripts]#  lsmod |grep bonding 
bonding               152656  0

4.重启网络服务

systemctl restart network

四、查看网卡绑定情况

1.再次检查本地网卡

[root@Server001 network-scripts]# ifconfig  
bond0: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST>  mtu 1500 
        inet 192.168.30.122  netmask 255.255.255.0  broadcast 192.168.30.255 
        inet6 fe80::2a6e:d4ff:fe8a:3299  prefixlen 64  scopeid 0x20<link> 
        ether 28:6e:d4:8a:32:99  txqueuelen 1000  (Ethernet) 
        RX packets 2426  bytes 748394 (730.8 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 13  bytes 838 (838.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500 
        inet 192.168.3.55  netmask 255.255.255.0  broadcast 192.168.3.255 
        inet6 fe80::2a6e:d4ff:fe89:8720  prefixlen 64  scopeid 0x20<link> 
        ether 28:6e:d4:89:87:20  txqueuelen 1000  (Ethernet) 
        RX packets 2853  bytes 740694 (723.3 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 478  bytes 75189 (73.4 KiB) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
eth1: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500 
        ether 28:6e:d4:8a:32:99  txqueuelen 1000  (Ethernet) 
        RX packets 2229  bytes 689858 (673.6 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 13  bytes 838 (838.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
eth2: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500 
        ether 28:6e:d4:8a:32:99  txqueuelen 1000  (Ethernet) 
        RX packets 2243  bytes 690766 (674.5 KiB) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 0  bytes 0 (0.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 
 
lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536 
        inet 127.0.0.1  netmask 255.0.0.0 
        inet6 ::1  prefixlen 128  scopeid 0x10<host> 
        loop  txqueuelen 1000  (Local Loopback) 
        RX packets 0  bytes 0 (0.0 B) 
        RX errors 0  dropped 0  overruns 0  frame 0 
        TX packets 0  bytes 0 (0.0 B) 
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

2.查看网卡绑定状态

[root@Server001 network-scripts]# cat  /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) 
 
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: eth1 
MII Status: up 
Speed: Unknown 
Duplex: Unknown 
Link Failure Count: 0 
Permanent HW addr: 28:6e:d4:8a:32:99 
Slave queue ID: 0 
 
Slave Interface: eth2 
MII Status: up 
Speed: Unknown 
Duplex: Unknown 
Link Failure Count: 0 
Permanent HW addr: 28:6e:d4:88:f4:90 
Slave queue ID: 0

五、测试网卡连通情况

1.本地客户端ping服务器

ping 192.168.30.122

六、关闭eth1网卡测试连通情况

1.关闭eth1网卡

[root@Server001 network-scripts]# ifdown eth1 
[root@Server001 network-scripts]#

2.查看本地客户端连通情况

可以正常ping通

3.查看当前的bond0状态

当前活动网卡已经切换到eth2，eth2网卡提供服务

[root@Server001 network-scripts]# cat  /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) 
 
Bonding Mode: fault-tolerance (active-backup) 
Primary Slave: None 
Currently Active Slave: eth2 
MII Status: up 
MII Polling Interval (ms): 100 
Up Delay (ms): 0 
Down Delay (ms): 0 
 
Slave Interface: eth2 
MII Status: up 
Speed: Unknown 
Duplex: Unknown 
Link Failure Count: 0 
Permanent HW addr: 28:6e:d4:88:f4:90 
Slave queue ID: 0

七、关闭eth2网卡测试连通情况

1.开启eth1网卡，关闭eth2网卡

[root@Server001 network-scripts]# ifup eth1 
[root@Server001 network-scripts]# ifdown eth2

2.测试本地客户端连通情况

可以正常ping通

3.查看当前的bond0状态

当前活动网卡已经切换到eth1，eth1网卡提供服务

[root@Server001 network-scripts]# cat  /proc/net/bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) 
 
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: eth1 
MII Status: up 
Speed: Unknown 
Duplex: Unknown 
Link Failure Count: 0 
Permanent HW addr: 28:6e:d4:8a:32:99 
Slave queue ID: 0
posted @ 2024-02-19 11:09  寻梦99  阅读(66)  评论(0)    收藏  举报