illumos gate

From ipadm(1m):

           The -p option (also --parsable) prints the output in a parsable
           format.

           The -o option (also --output) is used to select which fields will
           be shown.  The field value can be one of the following names:

               ALL
                   Display all fields

On OmniOS r151014:

root@dogface:/root# ipadm show-if -p -o ALL
ipadm: no valid output fields
root@dogface:/root#

But it does work if I enumerate every individual field that I'd expect to see in ALL:

root@dogface:/root# ipadm show-if -p -o IFNAME,STATE,CURRENT,PERSISTENT
lo0:ok:-m-v------46:---
bge0:ok:bm--------46:-46
vnic4:ok:bm--------4-:---
vnic10:ok:bm--------46:-46
root@dogface:/root#