I've been worrying about this proliferation of IPP Everywhere
conformance levels (in some IPP attribute?) that would sort of
compete with regular IPP protocol version levels.
I much prefer to use the IPP 2.0, 2.1, and 2.2 protocol versions
for our IPP Everywhere conformance levels.
(1) Do we need a new IPP boolean ipp-everywhere-supported
attribute to specify that IPP Everywhere is supported.
(2) Do we need a new IPP keyword ipp-discovery-supported
attribute to specify the (one or more) discovery protocols that
Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Co-Chair - IEEE-ISTO PWG IPP WG
Co-Chair - TCG Hardcopy WG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music/High North Inc
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On Tue, Mar 15, 2011 at 11:59 AM, Michael Sweet <msweet at apple.com> wrote:
>> As I am getting the rest of the IPP Everywhere spec together, it occurs to
> me that there are two logical categories of IPP printers we may want to use
> from a client:
>> 1. A standalone personal/workgroup printer that prints (and accepts) one
> job at a time (basically IPP/2.0)
> 2. A managed printer/print service that prints (and accepts) multiple jobs
> at a time (IPP/2.1 or IPP/2.2)
>> Now, we could define these as separate conformance levels for IPP
> Everywhere, *or* we could have IPP Everywhere use the protocol versions
> defined in IPP/2.0 SE as the basis for IPP Everywhere's different
> conformance levels.
>> Quick outline:
>> IPP/2.0: Add required JPS3 attributes and operations, Cancel-My-Jobs and
> media-col-database from JPS2, DNS-SD for discovery, and PWG Raster as the
> required document format.
>> IPP/2.1: Add required JPS3 attributes and operations, Cancel-My-Jobs,
> Cancel-Jobs, and media-col-database from JPS2, DNS-SD, LDAP, and SLP for
> discovery, and PWG Raster and PDF as the required document formats.
>> IPP/2.2: Add required JPS3 attributes and operations, DNS-SD, LDAP, and SLP
> for discovery, and PWG Raster and PDF as the required document formats.
> Michael Sweet, Senior Printing System Engineer, PWG Chair
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