Hello,
The ippget delivery method spec (draft-ietf-ipp-notify-get-03.txt) has an
error. In section 5.2, under Group 2: Unsupported Attributes, it talks
about the subscription-ids attribute. There is no such attribute described
in that document. My guess is that subscription-ids had been a list of
subscription ids to get notifications from, and the spec was later changed.
Regards,
Marty Joel