准备实验环境
首先在三台交换机创建vlan并且将各个接口加入到各自vlan，单数为vlan10，复数为vlan20
然后配置链路聚合和lacp，（之间是含有先后顺序的，先进入eth-trunk组，配置中继链路即允许所有vlan通过，然后配置lacp，最后再将接口加入到eth-trunk组中）
R1路由器的链路配置即单臂路由，（路由器的链路聚合配置首先加入eth-trunk组，使用命令（undo portswitch）让路由二层变三层。之后再将接口捆绑起来，最后配置单臂路由）在AR1配置dhcp使pc机可以自动获得IP地址
其他路由器的链路聚合都是同样的操作，先进入eth-trunk组让二层变三层，然后配置ip地址，指路由
全部都做好后在pc上点击dhcp，查看是否能够自动获取到，能获取到就说明配置完成了
测试lacp是否配置正确，随便在一个交换机上关闭接口来模拟网络测试
这边看到接口已经模拟完成
使用pc来ping通测试，可以看到一开始一直超时，之后恢复正常说明lacp配置正确（-t可以一直ping ctrl+c是停止测试）
具体命令如下！
1.首先在三台交换机创建vlan并且将各个接口加入到各自vlan，单数为vlan10，复数为vlan20
sys
un in en（关闭提示信息）
vlan batch 10 20（创建vlan）
exit
int e0/0/1
port link-type access
port default vlan 10
int e0/0/2
port link-type access
port default vlan 20
2.然后配置链路聚合和lacp，（之间是含有先后顺序的，先进入eth-trunk组，配置中继链路即允许所有vlan通过，然后配置lacp，最后再将接口加入到eth-trunk组中）
int Eth-Trunk 2
port link-type trunk
port trunk allow-pass vlan all
mode lacp-static
lacp timeout fast
lacp preempt enable
max active-linknumber 2
bpdu enable
q
interface Eth-Trunk 2
trunkport Ethernet 0/0/3 to 0/0/5
q
3.R1路由器的链路配置即单臂路由，（路由器的链路聚合配置首先加入eth-trunk组，使用命令（undo portswitch）让路由二层变三层。之后再将接口捆绑起来，最后配置单臂路由）在AR1配置dhcp使pc机可以自动获得IP地址
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]un in en
Info: Information center is disabled.
[Huawei]int e
[Huawei]int Eth-Trunk 1
[Huawei-Eth-Trunk1]undo portswitch
[Huawei-Eth-Trunk1]trunkport GigabitEthernet 0/0/0 to 0/0/1
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk1]int Eth-Trunk 1.10
[Huawei-Eth-Trunk1.10]dot1q termination vid 10
[Huawei-Eth-Trunk1.10]arp broadcast enable
[Huawei-Eth-Trunk1.10]ip add 192.168.10.1 24
[Huawei-Eth-Trunk1.10]q
[Huawei]dhcp e
[Huawei]dhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
[Huawei]int Eth-Trunk 1.10
[Huawei-Eth-Trunk1.10]dhcp select interface
[Huawei-Eth-Trunk1.10]dhcp server dns-list 1.1.1.1
[Huawei-Eth-Trunk1.10]int Eth-Trunk 1.20
[Huawei-Eth-Trunk1.20]dot1q termination vid 20
[Huawei-Eth-Trunk1.20]arp broadcast enable
[Huawei-Eth-Trunk1.20]ip add 192.168.20.1 24
[Huawei-Eth-Trunk1.20]dhcp select interface
[Huawei-Eth-Trunk1.20]dhcp server dns-list 2.2.2.2
[Huawei-Eth-Trunk1.20]q
* 4.其他路由器的链路聚合都是同样的操作，先进入eth-trunk组让二层变三层，然后配置ip地址，指路由**
（ar1）[Huawei]int Eth-Trunk 3
[Huawei-Eth-Trunk3]undo portswitch
[Huawei-Eth-Trunk3]trunkport GigabitEthernet 4/0/0
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk3]trunkport GigabitEthernet 0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk3]ip add 12.0.0.1 24
[Huawei-Eth-Trunk3]q
[Huawei]ip route-static 0.0.0.0 0.0.0.0 12.0.0.2
(ar2)[Huawei]int Eth-Trunk 3
[Huawei-Eth-Trunk3]undo portswitch
[Huawei-Eth-Trunk3]trunkport g4/0/0
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk3]trunkport g0/0/0
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk3]ip add 12.0.0.2 24
[Huawei-Eth-Trunk3]q
[Huawei]int Eth-Trunk 4
[Huawei-Eth-Trunk4]undo portswitch
[Huawei-Eth-Trunk4]trunkport g0/0/1
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk4]trunkport g0/0/2
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk4]ip add 23.0.0.2 24
[Huawei-Eth-Trunk4]q
[Huawei]ip route-static 192.168.10.0 24 12.0.0.1
[Huawei]ip route-static 192.168.20.0 24 12.0.0.1‘
(ar3)<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]un in en
Info: Information center is disabled.
[Huawei]int Eth-Trunk 4
[Huawei-Eth-Trunk4]undo portswitch
[Huawei-Eth-Trunk4]trunkport g0/0/1
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk4]trunkport g0/0/0
Info: This operation may take a few seconds. Please wait for a moment...done.
[Huawei-Eth-Trunk4]ip add 23.0.0.3 24
[Huawei-Eth-Trunk4]q
[Huawei]ip route-static 0.0.0.0 0.0.0.0 23.0.0.2