1. 堆叠线缆连线图（如下图）
2. 配置Swtich1：
[HUAWEI] sysname Switch1
[Switch1] interface stack-port 0/1
[Switch1-stack-port0/1] port interface xgigabitethernet 0/0/3 xgigabitethernet 0/0/4 enable
Warning: Enabling stack function may cause configuration loss on the interface. Continue? [Y/N]:y
Info: This operation may take a few seconds. Please wait......
[Switch1-stack-port0/1] quit
[Switch1] stack slot 0 priority 150 //优先级设置为150，使其成为堆叠主
Warning: Do not frequently modify the priority because it will make the stack split. Continue? [Y/N]:y
[Switch1] quit
<Switch1> save //堆叠相关的配置不需要保存，会自动写入flash。为防止其他配置丢失，这里建议执行save命令进行保存
The c
