Centos 7 配置 bond | 阿文的博客

centos 6 配置 bond 步骤是比较多的，要加载驱动，创建配置文件，然后修改配置文件等等。在 centos 7 中，创建 bond 要稍微简单点，具体步骤如下：

配置 bond

1.备份接口配置文件

[root@localhost ~]# cd /etc/sysconfig/network-scripts/
[root@localhost network-scripts]# cp ifcfg-ens33{,.bak}
[root@localhost network-scripts]# cp ifcfg-ens37{,.bak}
[root@localhost network-scripts]# cp ifcfg-ens38{,.bak}

2.创建 bond0 并且将3个接口加入 bond0

[root@localhost network-scripts]# nmcli con add type bond ifname bond0 mode 1
Connection 'bond-bond0' (d177479b-1f92-4416-bd10-f050e83684fd) successfully added.
[root@localhost network-scripts]# nmcli con add type bond-slave ifname ens33 master bond0
Connection 'bond-slave-ens33' (1ae30ef6-b2da-49cf-b023-ebf17e2290dd) successfully added.
[root@localhost network-scripts]# nmcli con add type bond-slave ifname ens37 master bond0
Connection 'bond-slave-ens37' (3746cde9-18e9-4867-88cc-f71a12961f56) successfully added.
[root@localhost network-scripts]# nmcli con add type bond-slave ifname ens38 master bond0
Connection 'bond-slave-ens38' (7de50d30-ab78-4165-9d21-e82c07ffeae9) successfully added.

这里会创建几个接口配置文件，如下以ifcfg-bond- 开头的文件都是 bond 的配置文件

[root@localhost network-scripts]# ls
ifcfg-bond0             ifcfg-ens37.bak  ifdown-ippp    ifdown-TeamPort  ifup-ipv6    ifup-Team
ifcfg-bond-bond0        ifcfg-ens38      ifdown-ipv6    ifdown-tunnel    ifup-isdn    ifup-TeamPort
ifcfg-bond-slave-ens33  ifcfg-ens38.bak  ifdown-isdn    ifup             ifup-plip    ifup-tunnel
ifcfg-bond-slave-ens37  ifcfg-lo         ifdown-post    ifup-aliases     ifup-plusb   ifup-wireless
ifcfg-bond-slave-ens38  ifdown           ifdown-ppp     ifup-bnep        ifup-post    init.ipv6-global
ifcfg-ens33             ifdown-bnep      ifdown-routes  ifup-eth         ifup-ppp     network-functions
ifcfg-ens33.bak         ifdown-eth       ifdown-sit     ifup-ib          ifup-routes  network-functions-ipv6
ifcfg-ens37             ifdown-ib        ifdown-Team    ifup-ippp        ifup-sit

##bond0 配置

[root@localhost network-scripts]# vi ifcfg-bond-bond0
DEVICE=bond0
BONDING_OPTS=mode=active-backup
TYPE=Bond
BONDING_MASTER=yes
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
NAME=bond-bond0
UUID=d177479b-1f92-4416-bd10-f050e83684fd
ONBOOT=yes
IPADDR=172.16.224.120
PREFIX=24
GATEWAY=172.16.224.2
DNS1=114.114.114.114
DNS2=223.5.5.5.5

重启网络

[root@localhost ~]#service network restart

查看 bond0配置

[root@localhost ~]# 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: ens33
MII Status: up
MII Polling Interval (ms): 0
Up Delay (ms): 0
Down Delay (ms): 0

Slave Interface: ens33
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:0c:29:46:29:8f
Slave queue ID: 0

Slave Interface: ens37
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:0c:29:46:29:99
Slave queue ID: 0

Slave Interface: ens38
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 00:0c:29:46:29:a3
Slave queue ID: 0

查看接口

[root@localhost network-scripts]# ifconfig
bond0: flags=5187<UP,BROADCAST,RUNNING,MASTER,MULTICAST>  mtu 1500
        inet 172.16.224.120  netmask 255.255.255.0  broadcast 172.16.224.255
        inet6 fe80::20c:29ff:fe46:298f  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:46:29:8f  txqueuelen 1000  (Ethernet)
        RX packets 332  bytes 37388 (36.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 157  bytes 24214 (23.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens33: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500
        ether 00:0c:29:46:29:8f  txqueuelen 1000  (Ethernet)
        RX packets 111023  bytes 150351141 (143.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 37196  bytes 2955308 (2.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens37: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500
        ether 00:0c:29:46:29:8f  txqueuelen 1000  (Ethernet)
        RX packets 77  bytes 11730 (11.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 13  bytes 1796 (1.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens38: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST>  mtu 1500
        ether 00:0c:29:46:29:8f  txqueuelen 1000  (Ethernet)
        RX packets 78  bytes 11816 (11.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1  bytes 60 (60.0 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 1  (Local Loopback)
        RX packets 118  bytes 10330 (10.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 118  bytes 10330 (10.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

文章作者：阿文

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