System Administration Guide: Oracle Solaris Containers-Resource Management and Oracle Solaris Zones

Interactive Mode

In interactive mode, a new pseudo-terminal is allocated for use inside the zone. Unlike console mode, in which exclusive access to the console device is granted, an arbitrary number of zlogin sessions can be open at any time in interactive mode. Interactive mode is activated when you do not include a command to be issued. Programs that require a terminal device, such as an editor, operate correctly in this mode.