When you run an ESXCLI vCLI command, you must know the commands that are supported on the target host specified with --server.
The following examples demonstrate command support when versions do not match.
VMware partners might develop custom ESXCLI commands that you can run on hosts where the partner VIB is installed.
Run esxcli --server <target> --help for a list of namespaces supported on the target. You can explore the namespaces for additional help.