For the members that physically exist,
this will cause the switch to shutdown.
If the switch is a standby, a new standby
switch will be chosen.
To shutdown, it needs to be set to
'true (1)'. A write operation of 'false (2)'
leads to no operation. This can be set to
'true (1)' only if the member physically exists
and is an active member of the stack. This
variable cannot be set to 'true (1)' if
the member ID corresponds to a commander.
This object will always return 'false (2)'.