Specify the configuration on which to perform an operation.
If a client application issues the Junos XML protocol
<open-configuration> operation to open a specific
configuration database before executing a
<edit-config> operation on the target
<candidate/>, Junos OS performs the requested operation
on the open configuration database. Otherwise, the operation is performed
on the candidate configuration. Client applications can only perform
<unlock> operations on the candidate configuration.
<candidate/>—Specify the configuration on which to perform the operation, either the open configuration database, or if there is no open database, the candidate configuration. This is the only acceptable value for Junos OS.