Today we had two 3750 switches remove from a core switch stack of eight 3750 switches. There was no loss of power or changes made. The other switches continued to work. The message was
040667: Jan 5 09:59:43.891 AEDT: %STACKMGR-6-SWITCH_REMOVED: Switch 7 has been REMOVED from the stack
040668: Jan 5 09:59:44.168 AEDT: %STACKMGR-6-SWITCH_REMOVED: Switch 8 has been REMOVED from the stack
The version is
Cisco IOS Software, C3750 Software (C3750-IPSERVICES-M), Version 12.2(25)SEC.
I have been unable to find any likely cause. Does anyone have an idea for a cause?