1. 手工链路聚合

1.1 实验拓扑

1.2 实验要求

• 让两边同VLAN的主机可以互相通信，为了实现冗余和增加带宽，在LSW1和LSW2之间做手工链路聚合。

1.3 实验配置

[LSW1]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW2]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW3]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW4]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW5]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW6]vlan batch 10 20 //在所有交换机上创建VLAN10和20

将对应的端口划入对应的VLAN
[LSW3]int Ethernet0/0/2 //进入E0/0/2端口
[LSW3-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW3-Ethernet0/0/2]port default vlan 10 //将端口划入VLAN 10中
[LSW4]int Ethernet0/0/2 //进入E0/0/2端口
[LSW4-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW4-Ethernet0/0/2]port default vlan 20 //将端口划入VLAN 20中
[LSW5]int Ethernet0/0/2 //进入E0/0/2端口
[LSW5-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW5-Ethernet0/0/2]port default vlan 10 //将端口划入VLAN 10中
[LSW6]int Ethernet0/0/2 //进入E0/0/2端口
[LSW6-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW6-Ethernet0/0/2]port default vlan 20 //将端口划入VLAN 20中

将交换机互联链路配置为Trunk
[LSW3]int Ethernet0/0/1 //进入E0/0/1端口
[LSW3-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW3-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW4]int Ethernet0/0/1 //进入E0/0/1端口
[LSW4-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW4-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW5]int Ethernet0/0/1 //进入E0/0/1端口
[LSW5-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW5-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW6]int Ethernet0/0/1 //进入E0/0/1端口
[LSW6-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW6-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW1]int GigabitEthernet 0/0/1 //进入G0/0/1端口
[LSW1-GigabitEthernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW1-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过
[LSW1]int GigabitEthernet 0/0/2 //进入G0/0/2端口
[LSW1-GigabitEthernet0/0/2]port link-type trunk //将端口类型修改为Trunk
[LSW1-GigabitEthernet0/0/2]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过
[LSW2]int GigabitEthernet 0/0/1 //进入G0/0/1端口
[LSW2-GigabitEthernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过
[LSW2]int GigabitEthernet 0/0/2 //进入G0/0/2端口
[LSW2-GigabitEthernet0/0/2]port link-type trunk //将端口类型修改为Trunk
[LSW2-GigabitEthernet0/0/2]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过

手工链路聚合配置
[LSW1]int Eth-Trunk 1 //创建聚合组1
[LSW1-Eth-Trunk1]mode manual load-balance //模式修改为手工负载分担
[LSW1-Eth-Trunk1]load-balance ? //可以设置负载分担方式
  dst-ip       According to destination IP hash arithmetic
  dst-mac      According to destination MAC hash arithmetic
  src-dst-ip   According to source/destination IP hash arithmetic
  src-dst-mac  According to source/destination MAC hash arithmetic
  src-ip       According to source IP hash arithmetic
  src-mac      According to source MAC hash arithmetic
[LSW1-Eth-Trunk1]trunkport GigabitEthernet 0/0/23 //将G0/0/23加入聚合组
[LSW1-Eth-Trunk1]trunkport GigabitEthernet 0/0/24 //将G0/0/24加入聚合组
[LSW1-Eth-Trunk1]port link-type trunk //将聚合组改为Trunk
[LSW1-Eth-Trunk1]port trunk allow-pass vlan 10 20 //允许VLAN 10 20的VLAN帧通过
[LSW2]int Eth-Trunk 1 //创建聚合组1
[LSW2-Eth-Trunk1]mode manual load-balance //模式修改为手工负载分担
[LSW2-Eth-Trunk1]trunkport GigabitEthernet 0/0/23 //将G0/0/23加入聚合组
[LSW2-Eth-Trunk1]trunkport GigabitEthernet 0/0/24 //将G0/0/24加入聚合组
[LSW2-Eth-Trunk1]port link-type trunk //将聚合组改为Trunk
[LSW2-Eth-Trunk1]port trunk allow-pass vlan 10 20 //允许VLAN 10 20的VLAN帧通过

1.4 实验结果

PC1访问PC3

PC2访问PC4

2. LACP链路聚合

2.1 实验拓扑

2.2 实验要求

• 让两边同VLAN的主机可以互相通信，为了实现冗余和增加带宽，在LSW1和LSW2之间做LACP模式链路聚合。

2.3 实验配置

[LSW1]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW2]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW3]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW4]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW5]vlan batch 10 20 //在所有交换机上创建VLAN10和20
[LSW6]vlan batch 10 20 //在所有交换机上创建VLAN10和20

将对应的端口划入对应的VLAN
[LSW3]int Ethernet0/0/2 //进入E0/0/2端口
[LSW3-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW3-Ethernet0/0/2]port default vlan 10 //将端口划入VLAN 10中
[LSW4]int Ethernet0/0/2 //进入E0/0/2端口
[LSW4-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW4-Ethernet0/0/2]port default vlan 20 //将端口划入VLAN 20中
[LSW5]int Ethernet0/0/2 //进入E0/0/2端口
[LSW5-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW5-Ethernet0/0/2]port default vlan 10 //将端口划入VLAN 10中
[LSW6]int Ethernet0/0/2 //进入E0/0/2端口
[LSW6-Ethernet0/0/2]port link-type access //将端口类型改为Access
[LSW6-Ethernet0/0/2]port default vlan 20 //将端口划入VLAN 20中

将交换机互联链路配置为Trunk
[LSW3]int Ethernet0/0/1 //进入E0/0/1端口
[LSW3-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW3-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW4]int Ethernet0/0/1 //进入E0/0/1端口
[LSW4-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW4-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW5]int Ethernet0/0/1 //进入E0/0/1端口
[LSW5-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW5-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW6]int Ethernet0/0/1 //进入E0/0/1端口
[LSW6-Ethernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW6-Ethernet0/0/1]port trunk allow-pass vlan 10 20 //Trunk链路允许VLAN10 20的VLAN帧通过
[LSW1]int GigabitEthernet 0/0/1 //进入G0/0/1端口
[LSW1-GigabitEthernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW1-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过
[LSW1]int GigabitEthernet 0/0/2 //进入G0/0/2端口
[LSW1-GigabitEthernet0/0/2]port link-type trunk //将端口类型修改为Trunk
[LSW1-GigabitEthernet0/0/2]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过
[LSW2]int GigabitEthernet 0/0/1 //进入G0/0/1端口
[LSW2-GigabitEthernet0/0/1]port link-type trunk //将端口类型修改为Trunk
[LSW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过
[LSW2]int GigabitEthernet 0/0/2 //进入G0/0/2端口
[LSW2-GigabitEthernet0/0/2]port link-type trunk //将端口类型修改为Trunk
[LSW2-GigabitEthernet0/0/2]port trunk allow-pass vlan 10 20 //允许VLAN10 20的VLAN帧通过

LACP链路聚合配置
[LSW1]int Eth-Trunk 1 //创建聚合组1
[LSW1-Eth-Trunk1]mode lacp-static //模式修改为静态LACP
[LSW1-Eth-Trunk1]load-balance ? //可以设置负载分担方式
  dst-ip       According to destination IP hash arithmetic
  dst-mac      According to destination MAC hash arithmetic
  src-dst-ip   According to source/destination IP hash arithmetic
  src-dst-mac  According to source/destination MAC hash arithmetic
  src-ip       According to source IP hash arithmetic
  src-mac      According to source MAC hash arithmetic
[LSW1-Eth-Trunk1]trunkport GigabitEthernet 0/0/23 //将G0/0/23加入聚合组
[LSW1-Eth-Trunk1]trunkport GigabitEthernet 0/0/24 //将G0/0/24加入聚合组
[LSW1-Eth-Trunk1]port link-type trunk //将聚合组改为Trunk
[LSW1-Eth-Trunk1]port trunk allow-pass vlan 10 20 //允许VLAN 10 20的VLAN帧通过
[LSW2]int Eth-Trunk 1 //创建聚合组1
[LSW1-Eth-Trunk1]mode lacp-static //模式修改为静态LACP
[LSW2-Eth-Trunk1]trunkport GigabitEthernet 0/0/23 //将G0/0/23加入聚合组
[LSW2-Eth-Trunk1]trunkport GigabitEthernet 0/0/24 //将G0/0/24加入聚合组
[LSW2-Eth-Trunk1]port link-type trunk //将聚合组改为Trunk
[LSW2-Eth-Trunk1]port trunk allow-pass vlan 10 20 //允许VLAN 10 20的VLAN帧通过
[LSW1-Eth-Trunk1]lacp preempt ? //配置LACP抢占
  delay   Delay time of preemption //配置抢占延时
  enable  Enable preemption //开启抢占
[LSW1-Eth-Trunk1]lacp selected priority //配置自己为主

2.4 实验结果

PC1访问PC3

PC2访问PC4