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  • Linux 双网卡绑定及Bridge

    Linux 双网卡绑定及Bridge

    一、桥接绑定介绍

    linux操作系统下双网卡绑定有七种模式。现在一般的企业都会使用双网卡接入,这样既能添加网络带宽,同时又能做相应的冗余,可以说是好处多多。而一般企业都会使用linux操作系统下自带的网卡绑定模式,当然现在网卡产商也会出一些针对windows操作系统网卡管理软件来做网卡绑定(windows操作系统没有网卡绑定功能 需要第三方支持),一共有其中方式,其中比较长用的是0/1/6:

    1:网卡绑定案例,先做绑定,然后再把绑定后的网卡配置成桥接:

    1.1:第一组配置,将eth1和eth5绑定为bond0:

    1.1.1:先创建bond0配置那文件步骤及内容如下:

    [root@linux-host1 ~]# cd /etc/sysconfig/network-scripts/
    [root@linux-host1 network-scripts]# cp ifcfg-eth0   ifcfg-bond0
    [root@linux-host1 network-scripts]# cat ifcfg-bond0 #内容如下:
    BOOTPROTO=static
    NAME=bond0
    DEVICE=bond0
    ONBOOT=yes
    BONDING_MASTER=yes
    BONDING_OPTS="mode=1 miimon=100" #指定绑定类型为1及链路状态监测间隔时间
    BRIDGE=br0 #桥接到br0

    1.1.2:配置br0:

    TYPE=Bridge
    BOOTPROTO=static
    IPV4_FAILURE_FATAL=no
    NAME=br0
    DEVICE=br0
    ONBOOT=yes
    IPADDR=X.X.X.X
    NETMASK=255.255.255.0
    GATEWAY=X.X.X.X

    1.1.3:eth1配置:

    [root@linux-host1 network-scripts]# vim ifcfg-eth1
    BOOTPROTO=static
    NAME=eth1
    DEVICE=eth1
    ONBOOT=yes
    NM_CONTROLLED=no
    MASTER=bond0
    USERCTL=no
    SLAVE=yes

    1.1.4:eth5的配置:

    [root@linux-host1 network-scripts]# cp ifcfg-eth1  ifcfg-eth5
    [root@linux-host1 network-scripts]# vim ifcfg-eth5
    BOOTPROTO=static
    NAME=eth5
    DEVICE=eth5
    ONBOOT=yes
    NM_CONTROLLED=no
    MASTER=bond0
    USERCTL=no
    SLAVE=yes

    1.1.5:重启网络服务:

    [root@linux-host1 network-scripts]# systemctl  restart network

    1.1.6:验证网络是否正常:

    [root@linux-host1 network-scripts]# ping www.baidu.com
    PING www.a.shifen.com (61.135.169.125) 56(84) bytes of data.
    64 bytes from 61.135.169.125: icmp_seq=1 ttl=128 time=6.17 ms
    64 bytes from 61.135.169.125: icmp_seq=2 ttl=128 time=10.3 ms
    64 bytes from 61.135.169.125: icmp_seq=3 ttl=128 time=5.36 ms
    64 bytes from 61.135.169.125: icmp_seq=4 ttl=128 time=6.74 ms
    64 bytes from 61.135.169.125: icmp_seq=5 ttl=128 time=5.71 ms

    1.1.:6:可以验证当前是绑定在哪一块网卡上的:

    [root@linux-host1 ~]# 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 #备份链路网卡
    MII Status: up
    MII Polling Interval (ms): 100
    Up Delay (ms): 0
    Down Delay (ms): 0
    
    Slave Interface: eth1
    MII Status: up
    Speed: 1000 Mbps
    Duplex: full
    Link Failure Count: 0
    Permanent HW addr: 18:66:da:f3:34:e5
    Slave queue ID: 0
    
    Slave Interface: eth5
    MII Status: up
    Speed: 1000 Mbps
    Duplex: full
    Link Failure Count: 0
    Permanent HW addr: 00:0a:f7:99:ba:d1
    Slave queue ID: 0

    1.2:第二组配置,将eth2和eth6绑定为bond1:

    1.2.1:创建bond1配置文件:

    [root@linux-host1 network-scripts]# cp ifcfg-bond0  ifcfg-bond1
    [root@linux-host1 network-scripts]# vim ifcfg-bond1
    BOOTPROTO=static
    NAME=bond1
    DEVICE=bond1
    TYPE=Bond
    BONDING_MASTER=yes
    BOOTPROTO=static
    NAME=bond1
    ONBOOT=yes
    BONDING_OPTS="mode=1 miimon=100"
    BRIDGE=br1

    1.2.2:配置br1,绑定到br1为仅主机模式时,不需要DNS1和网关:

    TYPE=Bridge
    BOOTPROTO=static
    IPV4_FAILURE_FATAL=no
    NAME=br1
    DEVICE=br1
    ONBOOT=yes
    IPADDR=X.X.X.X
    NETMASK=255.255.255.0

    1.2.3:eth2的配置:

    [root@linux-host1 network-scripts]# vim ifcfg-eth2
    BOOTPROTO=static
    NAME=eth2
    DEVICE=eth2
    ONBOOT=yes
    NM_CONTROLLED=no
    MASTER=bond1
    USERCTL=no
    SLAVE=yes

    1.2.4:eth6的配置:

    [root@linux-host1 network-scripts]# vim ifcfg-eth6
    BOOTPROTO=static
    NAME=eth6
    DEVICE=eth6
    ONBOOT=yes
    NM_CONTROLLED=no
    MASTER=bond1
    USERCTL=no
    SLAVE=yes

    1.2.5:重启网络服务:

    [root@linux-host1 network-scripts]# systemctl  restart network

    1.2.6:测试内网网络是否正常:

    [root@linux-host1 network-scripts]# ping 192.168.20.12
    PING 192.168.20.12 (192.168.20.12) 56(84) bytes of data.
    64 bytes from 192.168.20.12: icmp_seq=1 ttl=64 time=1.86 ms
    64 bytes from 192.168.20.12: icmp_seq=2 ttl=64 time=0.570 ms
    64 bytes from 192.168.20.12: icmp_seq=3 ttl=64 time=0.410 ms

    1.3:设置开机启动:

    [root@linux-host1 network-scripts]# vim /etc/rc.d/rc.local
    ifenslave eth1 eth5
    ifenslave eth2 eth6
    [root@linux-host1 network-scripts]# chmod  a+x /etc/rc.d/rc.local 

    1.4:重启系统后验证网络

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  • 原文地址:https://www.cnblogs.com/struggle-1216/p/12163119.html
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