SWITCH A：
1.<HUAWEI>system-view
2.[HUAWEI]stack slot 0 priority 200
3.[HUAWEI]按"Yes"。
4.[HUAWEI]quit
5.<HUAWEI>save
6.<HUAWEI>按"Yes"
SWITCH B:
1.<HUAWEI>system-view
2.[HUAWEI]stack slot 0 renumber 1
3.按"Yes"。
4.[HUAWEI]quit
5.<HUAWEI>save
6.<HUAWEI>按"Yes"
堆疊線接法： 兩條堆疊線以交叉方法接兩台交換機的堆疊口，即A交換機的1口接B交換機的2口，A交換機的2口接B交換機的1口。
當兩台交換機的上述配置完成后，將所有交換機下電，再重啟查看狀態。
<HUAWEI>display device //執行display device命令，查看堆疊系統中各成員交換機的個數與實際組網中交換機的個數是否一致。
S5720-56C-EI-AC's Device status:
Slot Sub Type Online Power Register Status Role
-------------------------------------------------------------------------------
0 - S5720-56C-EI Present PowerOn Registered Normal Master
1 ES5D21VST000 Present PowerOn Registered Normal NA
PWR1 POWER Present PowerOn Registered Normal NA
PWR2 POWER Present PowerOn Registered Normal NA
FAN1 FAN Present PowerOn Registered Normal NA
1 - S5720-56C-EI Present PowerOn Registered Normal Standby
1 ES5D21VST000 Present PowerOn Registered Normal NA
PWR1 POWER Present PowerOn Registered Normal NA
PWR2 POWER Present PowerOn Registered Normal NA
FAN1 FAN Present PowerOn Registered Normal NA
<HUAWEI>display stack //執行display stack命令，查看堆疊系統的連接拓撲與實際硬件連接是否一致。
Stack topology type: Ring
Stack system MAC: 6008-1081-79c0
MAC switch delay time: 10 min
Stack reserved vlan: 4093
Slot of the active management port: --
Slot Role Mac address Priority Device type
-------------------------------------------------------------
0 Master 6008-1081-79c0 200 S5720-56C-EI-AC
1 Standby 6008-10cd-0ab0 100 S5720-56C-EI-AC
