拓扑图如下一、交换机 LSW1 完整配置sysname LSW1# 创建VLANvlan batch 10 20 30 40# 配置链路聚合Eth-Trunk三条捆绑LACP模式interface Eth-Trunk 1mode lacp-staticport link-type trunkport trunk allow-pass vlan 10 20 30 40# 把3个物理口加入聚合组interface GigabitEthernet 0/0/1eth-trunk 1interface GigabitEthernet 0/0/2eth-trunk 1interface GigabitEthernet 0/0/3eth-trunk 1# PC1接入口 Access VLAN10interface GigabitEthernet 0/0/4port link-type accessport default vlan 10# PC2接入口 Access VLAN20interface GigabitEthernet 0/0/5port link-type accessport default vlan 20二、交换机 LSW2 完整配置sysname LSW2vlan batch 10 20 30 40# 链路聚合Eth-Trunk1 和LSW1对接interface Eth-Trunk 1mode lacp-staticport link-type trunkport trunk allow-pass vlan 10 20 30 40interface GigabitEthernet 0/0/2eth-trunk 1interface GigabitEthernet 0/0/3eth-trunk 1interface GigabitEthernet 0/0/4eth-trunk 1# 上行连接AR1Trunk允许所有业务VLAN用于单臂路由interface GigabitEthernet 0/0/1port link-type trunkport trunk allow-pass vlan 10 20 30 40# PC3接入 VLAN30interface GigabitEthernet 0/0/5port link-type accessport default vlan 30# PC4接入 VLAN40interface GigabitEthernet 0/0/6port link-type accessport default vlan 40三、路由器 AR1 完整配置单臂路由 静态路由sysname AR1# 路由器互联接口AR1-AR2interface GigabitEthernet 0/0/0ip address 12.1.1.1 255.255.255.0# 单臂路由主接口先开直通不配置IPinterface GigabitEthernet 0/0/1undo shutdown# 子接口VLAN10interface GigabitEthernet 0/0/1.10dot1q termination vid 10ip address 192.168.10.1 255.255.255.0arp broadcast enable# 子接口VLAN20interface GigabitEthernet 0/0/1.20dot1q termination vid 20ip address 192.168.20.1 255.255.255.0arp broadcast enable# 子接口VLAN30interface GigabitEthernet 0/0/1.30dot1q termination vid 30ip address 192.168.30.1 255.255.255.0arp broadcast enable# 子接口VLAN40interface GigabitEthernet 0/0/1.40dot1q termination vid 40ip address 192.168.40.1 255.255.255.0arp broadcast enable# 静态路由去往右侧50、60网段下一跳AR2 12.1.1.2ip route-static 192.168.50.0 255.255.255.0 12.1.1.2ip route-static 192.168.60.0 255.255.255.0 12.1.1.2四、交换机 LSW3 完整配置sysname LSW3vlan batch 50 60# 上行连接AR2Trunkinterface GigabitEthernet 0/0/1port link-type trunkport trunk allow-pass vlan 50 60# PC5 VLAN50interface GigabitEthernet 0/0/2port link-type accessport default vlan 50# PC6 VLAN60interface GigabitEthernet 0/0/3port link-type accessport default vlan 60五、路由器 AR2 完整配置单臂路由 回程静态路由sysname AR2# 和AR1互联接口interface GigabitEthernet 0/0/0ip address 12.1.1.2 255.255.255.0# 单臂路由主接口interface GigabitEthernet 0/0/1undo shutdown# 子接口VLAN50interface GigabitEthernet 0/0/1.50dot1q termination vid 50ip address 192.168.50.1 255.255.255.0arp broadcast enable# 子接口VLAN60interface GigabitEthernet 0/0/1.60dot1q termination vid 60ip address 192.168.60.1 255.255.255.0arp broadcast enable# 回程静态路由去往左侧10/20/30/40网段下一跳AR1 12.1.1.1ip route-static 192.168.10.0 255.255.255.0 12.1.1.1ip route-static 192.168.20.0 255.255.255.0 12.1.1.1ip route-static 192.168.30.0 255.255.255.0 12.1.1.1ip route-static 192.168.40.0 255.255.255.0 12.1.1.1六、验证排错命令配置完成后排查交换机查看聚合 display eth-trunk交换机查看 VLAN 端口display port vlan路由器查看路由表 display ip routing-table查看子接口状态 display ip interface brief互通测试PC 互相 ping 跨网段 IP