Debian 16.04 配置双网卡绑定bond
<h2 id="debian-1604-配置双网卡绑定bond">Debian 16.04 配置双网卡绑定bond</h2><h3 id="debian-1604-bonding多网卡配置">Debian 16.04 bonding多网卡配置</h3>
<ol>
<li>安装负载均衡软件 <strong>fenslave</strong></li>
</ol>
<pre><code>root@ubuntu:~# apt-get install ifenslave
root@ubuntu:~# dpkg -l | grep ifenslave
iiifenslave 2.7ubuntu1 all configure network interfaces for parallel routing (bonding)
</code></pre>
<ol start="2">
<li>添加 <strong>bonding</strong> 模块，使之可以开机自动加载该模块</li>
</ol>
<pre><code>root@ubuntu:~# echo "bonding" >> /etc/modules
root@ubuntu:~# cat /etc/modules
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
bonding
</code></pre>
<ul>
<li>接着可以手动加载绑定内核模块，也可以重启</li>
</ul>
<pre><code>root@ubuntu:~# modprobe bonding
root@ubuntu:~# lsmod | grep bonding
bonding
</code></pre>
<ol start="3">
<li>编辑 <strong>/etc/network/interfaces</strong> 配置文件</li>
</ol>
<ul>
<li>设置主备模式 （<strong>active-backup</strong>）</li>
</ul>
<pre><code>root@ubuntu:~# vim /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0 #该网卡使用来远程使用的
iface eth0 inet static
address 192.168.121.16
netmask 255.255.255.0
gateway 192.168.121.2
auto eth1 #绑定的网卡eth1
iface eth1 inet manual #最好设置为手动,设置为static可能会出问题
bond-master bond0 #绑定的接口
bond-primary eth1 #表示该网卡是主网卡，有流浪优先走该网卡
auto eth2 #绑定的网卡eth2
iface eth2 inet manual
bond-master bond0 #绑定的接口
auto bond0 #绑定网卡名
iface bond0 inet static
address 192.168.121.100
netmask 255.255.255.0
gateway 192.168.121.2
bond-slaves none #主备模式，没有从属网卡
bond-mode 1 #1代表主备模式active-backup
bond-miimon 200 #200毫秒监测一次网卡状态，如果有一条线路不通就切换另一条线路
</code></pre>
<ul>
<li>设置负载均衡模式 (<strong>balace-rr</strong>)</li>
</ul>
<pre><code>root@ubuntu:~# vim /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
source /etc/network/interfaces.d/*
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.121.16
netmask 255.255.255.0
gateway 192.168.121.2
auto eth1
iface eth1 inet manual
bond-master bond0
auto eth2
iface eth2 inet manual
bond-master bond0
auto bond0
iface bond0 inet static
address 192.168.121.100
netmask 255.255.255.0
gateway 192.168.121.2
bond-slaves eth1 eth2 #添加两个从属网卡
bond-mode 0 #0表示负载均衡模式
bond-miimon 200
</code></pre>
<ol start="4">
<li>重启网络服务</li>
</ol>
<pre><code>root@ubuntu:~# systemctl restart networking
</code></pre>
<ol start="5">
<li>查看bond</li>
</ol>
<pre><code>root@ubuntu:~# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:0c:29:57:67:25 brd ff:ff:ff:ff:ff:ff
inet 192.168.121.16/24 brd 192.168.121.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe57:6725/64 scope link
valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen 1000
link/ether 00:0c:29:57:67:39 brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 state UP group default qlen 1000
link/ether 00:0c:29:57:67:39 brd ff:ff:ff:ff:ff:ff
5: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 00:0c:29:57:67:39 brd ff:ff:ff:ff:ff:ff
inet 192.168.121.100/24 brd 192.168.121.255 scope global bond0
valid_lft forever preferred_lft forever
inet6 fe80::20c:29ff:fe57:6739/64 scope link tentative dadfailed
valid_lft forever preferred_lft forever
</code></pre><br><br>
来源：https://www.cnblogs.com/itwangqiang/p/14313584.html
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