参考

対応

show int しても Fa1/0/XXだけではなくFa2/0/XXが存在することに気がつき調べてみるとStack設定が残っていることがわかった。

現状確認

#show switch
Switch/Stack Mac Address : 0014.69a5.XXXX
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
 1       Member 0000.0000.0000     0      0       Provisioned
*2       Master 0014.69a5.XXXX     1      0       Ready

修正

#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
(config)#switch 2 renumber 1
WARNING: Changing the switch number may result in a
configuration change for that switch.
The interface configuration associated with the old switch
number will remain as a provisioned configuration.
Do you want to continue?[confirm]
Changing Switch Number 2 to Switch Number 1
New Switch Number will be effective after next reboot

(config)#^Z

再起動

#reload

System configuration has been modified. Save? [yes/no]: yes
Building configuration...
[OK]

再起動後

確認

#show switch
Switch/Stack Mac Address : 0014.69a5.XXXX
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 0014.69a5.XXXX     1      0       Ready
 2       Member 0000.0000.0000     0      0       Provisioned

switch 2を削除すればよい。

(config)#no switch 2 provision ws-c3750-24ts

確認

#show switch
Switch/Stack Mac Address : 0014.69a5.XXXX
                                           H/W   Current
Switch#  Role   Mac Address     Priority Version  State
----------------------------------------------------------
*1       Master 0014.69a5.XXXX     1      0       Ready