前几天来了两台华为S5720交换机，做下堆叠，两条线，交叉互联（即A交换机23口连到B交换机24口，A交换机24口连接B交换机23口）。
PS： S5720堆叠可基于电口或者光口做，本次测试基于电口。
SWA配置
# 改名
[Huawei]sysname SWA
# 最好先shutdown接口
[SWA]interface GigabitEthernet 0/0/23
[SWA-GigabitEthernet0/0/23]shutdown
[SWA-GigabitEthernet0/0/23]interface GigabitEthernet 0/0/24
[SWA-GigabitEthernet0/0/24]shutdown
[SWA-GigabitEthernet0/0/24]quit
# SWA默认number0
[SWA]interface stack-port 0/1
[SWA-stack-port0/1]port interface GigabitEthernet 0/0/23 enable
[SWA-stack-port0/1]quit
[SWA]interface stack-port 0/2
[SWA-stack-port0/2]port interface GigabitEthernet 0/0/24 enable
[SWA-stack-port0/2]quit
# 开启23和24接口，保存配置
[SWA]interface GigabitEthernet 0/0/23
[SWA-GigabitEthernet0/0/23]undo shutdown
[SWA-GigabitEthernet0/0/23]interface GigabitEthernet 0/0/24
[SWA-GigabitEthernet0/0/24]undo shutdown
[SWA-GigabitEthernet0/0/24]quit
[SWA]quit
<SWA>save
The current configuration will be written to the device.
Are you sure to continue?[Y/N]y
Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]:
Now saving the current configuration to the slot 0.
Save the configuration successfully.
SWB配置
# 改名
[Huawei]sysname SWB
# 关闭接口
[SWB]interface GigabitEthernet 0/0/23
[SWB-GigabitEthernet0/0/23]shutdown
[SWB-GigabitEthernet0/0/23]interface GigabitEthernet 0/0/24
[SWB-GigabitEthernet0/0/24]shutdown
[SWB-GigabitEthernet0/0/24]quit
# 修改成员号
[SWB]stack slot 0 renumber 1
# 默认100，华为是1-255，值越大优先级越高会被推举为Master
[SWB]stack slot 0 priority 10
[SWB]interface stack-port 0/1
[SWB-stack-port0/1]port interface GigabitEthernet 0/0/23 enable
[SWB-stack-port0/1]quit
[SWB]interface stack-port 0/2
[SWB-stack-port0/2]port interface GigabitEthernet 0/0/24 enable
[SWB-stack-port0/2]quit
# 开启23和24接口，保存配置
[SWB]interface GigabitEthernet 0/0/23
[SWB-GigabitEthernet0/0/23]undo shutdown
[SWB-GigabitEthernet0/0/23]interface GigabitEthernet 0/0/24
[SWB-GigabitEthernet0/0/24]undo shutdown
[SWB-GigabitEthernet0/0/24]quit
[SWB]quit
<SWB>sava
The current configuration will be written to the device.
Are you sure to continue?[Y/N]y
Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]:
Now saving the current configuration to the slot 0.
Save the configuration successfully.
重启两台交换机
正常情况下就配置好了，重启后可查看在一台交换机上接口数量是否增加一倍
[SWA]display interface brief
参考博客：