三层链路捆绑实例

一. 链路捆绑实现冗余功能实验
1.在华为模拟器ensp上设置两个普通路由器，两个交换机，四台PC
先打开ensp ，新建2个路由器和2个pc用户，分别用网线连接,如下图

2. 配置LSW1 LACP
   配置lacp

   [SW1]lacp priority 1000
   [SW1]int Eth-Trunk 1
   [SW1-Eth-Trunk1]bpdu enable
   [SW1-Eth-Trunk1]mode lacp-static
   [SW1-Eth-Trunk1]max active-linknumber 2
   [SW1-Eth-Trunk1]q
   [SW1]vlan batch 10 20
   [SW1]int Eth-Trunk 1
   [SW1-Eth-Trunk1]trunkport e 0/0/20 to 0/0/22
   [SW1-Eth-Trunk1]p l t
   [SW1-Eth-Trunk1]p t a v a
   [SW1-Eth-Trunk1]un sh
   [SW1-Eth-Trunk1]dis eth-trunk 1
   Least Active-linknumber: 1  Max Active-linknumber: 2                         
   Ethernet0/0/20         Unselect 100M     32768   21     289     10100010  1     
   Ethernet0/0/21         Unselect 100M     32768   22     289     10100010  1     
   Ethernet0/0/22         Unselect 100M     32768   23     289     10100010  1
   [SW1-Eth-Trunk1]dis int brief
   Eth-Trunk1                  down  down        0%     0%          0          0
   Ethernet0/0/20            up    up          0%     0%          0          0
   Ethernet0/0/21            up    up          0%     0%          0          0
   Ethernet0/0/22            up    up          0%     0%          0          0

   配置Trunk 2

   [SW1]int Eth-Trunk 2
   [SW1-Eth-Trunk2]trunkport g 0/0/1 to 0/0/2
   [SW1-Eth-Trunk2]p l a
   [SW1-Eth-Trunk2]p d v 10
   [SW1-Eth-Trunk2]un sh
   [SW1]dis eth-trunk 2
   Eth-Trunk2                  up    up          0%     0%          0          0
   GigabitEthernet0/0/1      up    up          0%     0%          0          0
   GigabitEthernet0/0/2      up    up          0%     0%          0          0

配置接PC的连个口

[SW1-Eth-Trunk1]q
[SW1]int e0/0/1
[SW1-Ethernet0/0/1]p l a
[SW1-Ethernet0/0/1]p d v 10
[SW1-Ethernet0/0/1]un sh
[SW1-Ethernet0/0/1]int e0/0/2
[SW1-Ethernet0/0/2]p l a
[SW1-Ethernet0/0/2]p d v 20
[SW1-Ethernet0/0/2]undo sh

3. 配置LSW2

   [SW2] int Eth-Trunk 1
   [SW2Eth-Trunk1]bpdu enable
   [SW2Eth-Trunk1]mode lacp-static
   [SW2-Eth-Trunk1]trunkport e 0/0/20 to 0/0/22
   [SW2-Eth-Trunk1]p l t
   [SW2-Eth-Trunk1]p t a v a
   [SW2-Eth-Trunk1]un sh
   [SW2-Eth-Trunk1]int Eth-Trunk 2
   [SW2-Eth-Trunk2]trunkport g 0/0/1 to 0/0/2
   [SW2-Eth-Trunk2]p l a
   [SW2-Eth-Trunk2]p d v 20
   [SW2-Eth-Trunk2]un sh
   [SW2]int e0/0/1
   [SW2-Ethernet0/0/1]p l a
   [SW2-Ethernet0/0/1]p d v 10
   [SW2-Ethernet0/0/1]undo sh
   [SW2-Ethernet0/0/1]int e0/0/2
   [SW2-Ethernet0/0/2]p l a
   [SW2-Ethernet0/0/2]p d v 20
   [SW2-Ethernet0/0/2]un sh
   [SW2-Ethernet0/0/2]dis int brief
   Eth-Trunk1                  up    up          0%     0%          0          0
   Ethernet0/0/20            up    up          0%     0%          0          0
   Ethernet0/0/21            up    up          0%     0%          0          0
   Ethernet0/0/22            up    up          0%     0%          0          0
   Eth-Trunk2                  up    up          0%     0%          0          0
   GigabitEthernet0/0/1      up    up          0%     0%          0          0
   GigabitEthernet0/0/2      up    up          0%     0%          0          0

   4.配置R1

   [R1]interface Eth-Trunk 1
   [R1-Eth-Trunk1]trunkport g 0/0/2 to 0/0/3
   [R1-Eth-Trunk1]ip add 12.0.0.1 30
   [R1-Eth-Trunk1]un sh
   [R1-Eth-Trunk1]interface Eth-Trunk 2
   [R1-Eth-Trunk2]trunkport g 0/0/0 to 0/0/1
   [R1-Eth-Trunk2]ip add 192.168.10.1 24
   [R1-Eth-Trunk2]un sh
   [R1-Eth-Trunk2]dis int brief
   Eth-Trunk1                  up    up          0%     0%          0          0
   GigabitEthernet0/0/2      up    up          0%     0%          0          0
   GigabitEthernet0/0/3      up    up          0%     0%          0          0
   Eth-Trunk2                  up    up          0%     0%          0          0
   GigabitEthernet0/0/0      up    up          0%     0%          0          0
   GigabitEthernet0/0/1      up    up          0%     0%          0          0

   配置静态路由

   [R1]ip route-static 192.168.20.0 24 12.0.0.2
   [R1]ping 192.168.10.20
   PING 192.168.10.20: 56  data bytes, press CTRL_C to break
   Reply from 192.168.10.20: bytes=56 Sequence=1 ttl=128 time=180 ms
   [R1]ping 192.168.10.10
   PING 192.168.10.10: 56  data bytes, press CTRL_C to break
   Reply from 192.168.10.10: bytes=56 Sequence=1 ttl=128 time=140 ms
   Reply from 192.168.10.10: bytes=56 Sequence=2 ttl=128 time=60 ms

   5.配置R2

   [R2]interface Eth-Trunk 1
   [R2-Eth-Trunk1]trunkport g 0/0/2 to 0/0/3
   [R2-Eth-Trunk1]ip add 12.0.0.2 30
   [R2-Eth-Trunk1]un sh
   [R2-Eth-Trunk1]int eth-trunk 2
   [R2-Eth-Trunk2]trunkport g 0/0/0 to 0/0/1
   [R2-Eth-Trunk2]ip add 192.168.20.1 24
   [R2-Eth-Trunk2]un sh
   [R2-Eth-Trunk2]ip route-static 192.168.10.0 24 12.0.0.1
   [R2]ping 12.0.0.1
   PING 12.0.0.1: 56  data bytes, press CTRL_C to break
   Reply from 12.0.0.1: bytes=56 Sequence=1 ttl=255 time=60 ms
   Reply from 12.0.0.1: bytes=56 Sequence=2 ttl=255 time=30 ms

   6.主机配置注意网关地址一定要填
   如PC1 10.10网关时10.1
   
   7.互通性测试
   每台主机Ping 其他三台都能通，则ok.
   以上。