1.拓扑图 2.R2配置 The device is running! ###################################### <Huawei>sys Enter system view, return user view with Ctrl+Z. [Huawei]sysname R2 [R2]interface g [R2]interface GigabitEthernet // [R2-GigabitEthernet0//]ip add [R2-GigabitEthe…