Editor's note: These minutes have not been edited.
37th IETF, IPP BOF December 12, 1996
Internet Printing Protocol
Birds of a Feather Session
December 12, 1996
Reported by: Don Wright
Carl-Uno Manros, (Chair) reviewed the agenda for the
meeting.
He then gave a short talk about the lack of IETF standards
for printing. He also discussed how this effort started
under the Printer Working Group.
Don Wright presented an overview of the Internet printing
requirements. The following were significant issues raised
by the attendees:
- firewalls
- there are no ` `operators' ', only users
- using HTTP as a transport
- LPR/LPD/RFC1179 discussion
Carl-Uno presented the charter:
- Will address needs of normal, end-user roles
- Will not address needs of the operator and
administrator roles
- The group will strive to build on existing standards
and technologies
- Would like to use existing standards for directories
- The submitting protocol should not exclude other
devices (fax, etc.)
It was pointed out that HTTP 1.0 is not an IETF
standard. HTTP 1.1 is a proposed standard that might be
applicable to IPP.
Suggestion from the meeting -- don't explicitly tie IPP to
HTTP.
The question was raised whether a scenario statement of how to
use IPP without a directory server was needed.
Carl-Uno presented the planned drafts list which included:
- Requirements (Informational)
- MIME Types for IPP (Standards Track)
- Application Protocol - IPP (Standards Track)
- IPP on HTTP (Standards Track)
- IPP Directory Support -LDAP Object Classes for Printers
(Standards Track)
He also presented the deliverables and milestones for the
project.
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37th IETF, IPP BOF December 12, 1996
There was a discussion as to whether the group should do the
work on the various drafts in parallel versus serial.
Several combinations of serial and parallel were also
discussed. No conclusion.
Scott Isaacson presented the IPP protocol document. The
following issues were raised:
- Will the protocol support printer configuration - No,
not in 1.0
- Continued discussion on using HTTP.
Open Discussion:
1) A concern was raised that there was some overlap
between the work proposed by the proposed fax group and the
proposed print group. This overlap will be assessed by the
Application Area Directors.
2) HTTP issue again. Suggested using specific HTML as well
to more strongly tie IPP to HTTP.
3) A concern was raised about running over HTTP to get
through firewalls. This plan was called ``bogus' ' by one on
the attendees.
4) The group was reminded that HTTP can be used in
both directions to not only send the job but also to
retrieve status, etc.
5) Suggestion to define the MIME objects and encoding first.
6) Harald Alvestrand wanted the charter to be simplified by
removing some of the work items such as removing the LDAP
mapping and the HTTP mapping.
7) More discussion about using RFC1179. Someone suggested
the group should fix RFC 1179 as a part of this project.
There was no interest on the part of the core group to do
this.
Carl-Uno asked for a show of hands as to whether this effort
was worthy of a being a chartered WG. More than half of the
attendees felt it was. When asked who thought the effort
shouldn't be chartered, only 1 person raised his hand. That
person's concern was that the proposed charter was too
broad.
