交换机与路由器之间进行链路聚合知识总结
为了增加交换机与路由器，或者路由器与路由器之间的带宽和稳定性，需要采用链路聚合技术，相关思路及操作如下：
1.搭建网络模型
2.工作站设备基本配置
3.交换机配置：链路聚合配置，静态路由配置
4.路由器配置：链路聚合配置，静态路由配置（需要将聚合链路二层接口变为三层接口，在Eth-trunk接口上配置IP地址）
5.连通测试
1.搭建网络模型
2.工作站设备基本配置
3.交换机配置：链路聚合配置，静态路由配置
//SW1 配置：
//交换机上配置vlan及IP地址
[SW1] vlan batch 10 100
[SW1] interface Vlanif 10
[SW1-Vlanif10] ip address 192.168.10.1 24
[SW1] interface Vlanif 100
[SW2-Vlanif100] ip address 192.168.100.1 24
//做链路聚合，这个与路由器相对应的eth-trunk只能是采用link-type access
[SW1] interface Eth-Trunk 1
[SW1-Eth-Trunk1] mode lacp-static
[SW1-Eth-Trunk1] trunkport GigabitEthernet 0/0/1
[SW1-Eth-Trunk1] trunkport GigabitEthernet 0/0/2
[SW1-Eth-Trunk1] port link-type access
[SW1-Eth-Trunk1] port default vlan 100
//SW1 静态路由配置
[SW1] ip route-static 192.168.12.0 24 192.168.100.254[SW1] ip route-static 192.168.200.0 24 192.168.100.254[SW1] ip route-static 192.168.20.0 24 192.168.100.254
//SW2 配置
//交换机上配置vlan及IP地址
[SW2] vlan batch 20 200
[SW2] interface Vlanif 20
[SW2-Vlanif20] ip address 192.168.20.1 24
[SW2] interface Vlanif 200
[SW2-Vlanif200] ip address 192.168.200.1 24
//做链路聚合，这个与路由器相对应的eth-trunk只能是采用link-type access
[SW1] interface Eth-Trunk 1
[SW1-Eth-Trunk2] mode lacp-static
[SW1-Eth-Trunk2] trunkport GigabitEthernet 0/0/1
[SW1-Eth-Trunk2] trunkport GigabitEthernet 0/0/2
[SW1-Eth-Trunk2] port link-type access
[SW1-Eth-Trunk2] port default vlan 20
//SW2 静态路由配置
[SW2]ip route-static 192.168.12.0 24 192.168.200.254
[SW2]ip route-static 192.168.10.0 24 192.168.200.254[SW2]ip route-static 192.168.100.0 24 192.168.200.254
4.路由器配置：链路聚合配置，静态路由配置（需要将聚合链路二层接口变为三层接口，在Eth-trunk接口上配置IP地址）
//Router1链路配置
[Router1] interface Eth-Trunk1 //路由器与交换机之间的链路聚合
[Router1-Eth-Trunk1] undo portswitch //这一步很重要，需要将聚合链路二层接口变为三层接口，在Eth-trunk接口上配置IP地址，只有三层接口才能配置IP地址。
[Router1-Eth-Trunk1] mode lacp-static
[Router1-Eth-Trunk1] trunkport GigabitEthernet 2/0/1
[Router1-Eth-Trunk1] trunkport GigabitEthernet 2/0/2
[Router1-Eth-Trunk1] ip address 192.168.100.254 24
//
[Router1] interface Eth-Trunk3 //路由器与路由器之间的链路聚合
[Router1-Eth-Trunk3] undo portswitch //接口转换，由二类口转换成三类口
[Router1-Eth-Trunk3] mode lacp-static
[Router1-Eth-Trunk3] trunkport GigabitEthernet 0/0/0
[Router1-Eth-Trunk3] trunkport GigabitEthernet 0/0/1
[Router1-Eth-Trunk3] ip address 192.168.12.1 24
//Router1 路由配置
[Router1] ip route-static 192.168.10.0 24 192.168.100.1[Router1] ip route-static 192.168.200.0 24 192.168.12.2[Router1] ip route-static 192.168.20.0 24 192.168.12.2
//Router2链路配置
[Router2] interface Eth-Trunk2 //eth-trunk接口是二层接口
[Router2-Eth-Trunk2] undo portswitch //这一步很重要，只有三层接口才能配置IP地址。
[Router2-Eth-Trunk2] mode lacp-static
[Router2-Eth-Trunk2] trunkport GigabitEthernet 2/0/1
[Router2-Eth-Trunk2] trunkport GigabitEthernet 2/0/2
[Router2-Eth-Trunk2] ip address 192.168.200.254 24
//
[Router2] interface Eth-Trunk3 //路由器与路由器之间的链路聚合
[Router2-Eth-Trunk3] undo portswitch //接口转换，由二类口转换成三类口
[Router2-Eth-Trunk3] mode lacp-static
[Router2-Eth-Trunk3] trunkport GigabitEthernet 0/0/0
[Router2-Eth-Trunk3] trunkport GigabitEthernet 0/0/1
[Router2-Eth-Trunk3] ip address 192.168.12.2 24
//Router2 路由配置
[Router2] ip route-static 192.168.20.0 24 192.168.200.1[Router2] ip route-static 192.168.100.0 24 192.168.12.1[Router2] ip route-static 192.168.10.0 24 192.168.12.1
5.连通测试（PC6 ping PC1）
PC>ipconfig
Link local IPv6 address...........: fe80::5689:98ff:fe87:2dfeIPv6 address......................: :: / 128IPv6 gateway......................: ::IPv4 address......................: 192.168.20.222Subnet mask.......................: 255.255.255.0Gateway...........................: 192.168.20.1Physical address..................: 54-89-98-87-2D-FEDNS server........................:
PC>ping 192.168.10.111
Ping 192.168.10.111: 32 data bytes, Press Ctrl_C to breakRequest timeout!From 192.168.10.111: bytes=32 seq=2 ttl=124 time=78 msFrom 192.168.10.111: bytes=32 seq=3 ttl=124 time=78 msFrom 192.168.10.111: bytes=32 seq=4 ttl=124 time=62 msFrom 192.168.10.111: bytes=32 seq=5 ttl=124 time=63 ms
--- 192.168.10.111 ping statistics --- 5 packet(s) transmitted 4 packet(s) received 20.00% packet loss round-trip min/avg/max = 0/70/78 ms
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