I'm looking for a command line which disable the simultaneous access to privileged EXEC mode on Cisco switches, so no other administrator can access the EXEC mode until the accessed administrator get out of the EXEC mode.
Hi You would need ISE or ACS to do that in policy im not aware of particular commands like that in IOS there is a command that locks people from making changes when your in config mode called configuration lock that prevents issues
other options would be remove or lock down there access to lower privilege levels or lock up or close down the tty sessions so only 1 user can access device at a time