trying to boot cdrom to create the secondary domain ldom

my secondary has this assigned,  but when I  telnet 0 5000  it just hangs.

suggestions?   I  tried the ~?  options.

primary here

VDS

    NAME         VOLUME         OPTIONS          MPGROUP        DEVICE

    primary-vds0 cdrom                                          /dev/dsk/c3t0d0s2

secondary  here

DISK
    NAME         VOLUME                 TOUT ID   DEVICE  SERVER         MPGROUP
    cdrom        cdrom@primary-vds0          0    disk@0  primary

VCONS
    NAME         SERVICE                PORT   LOGGING
    secondary    primary-vcc0@primary   5000   on

df  list here ....

                       573898752      104686    92598270     1%    /var/share/pkg/repositories

/dev/dsk/c3t0d0s2         104620      104620           0   100%    /media/Solaris-11_3_15_4_0-Boot-SPARC