[IPP] Erratum on RFC 8011 : 'document-attributes-group' not mentioned in Send-Document, etc.

[IPP] Erratum on RFC 8011 : 'document-attributes-group' not mentioned in Send-Document, etc.

Michael Sweet msweet at apple.com
Mon Mar 12 22:38:08 UTC 2018


Paul,

No, the purpose of the IPP book is to document the basics that can be used on most/all printers.  The document object extension does not meet that criteria...


> On Mar 12, 2018, at 5:54 PM, Paul Tykodi <ptykodi at tykodi.com> wrote:
> 
> Hi Ira,
> 
> Do you think the document object might be a good topic to cover in the IPP book we have been discussing?
> 
> Thanks.
> 
> Best Regards,
> 
> /Paul
> 
> Sent from my iPhone
> 
> On Mar 12, 2018, at 2:24 PM, Ira McDonald <blueroofmusic at gmail.com <mailto:blueroofmusic at gmail.com>> wrote:
> 
>> Hi,
>> 
>> I agree with Mike.  Document object has the complexity of the Job object plus bells and whistles.
>> Subscription object covering multiple targets (System, Printer, Job, Document) is complex.
>> 
>> Even IPP/2.0 (w/ 2.1 and 2.2) is just brief lists of required attributes and operations for three levels
>> of IPP Printer capabilities (and no longer even close to all inclusive).
>> 
>> RFCs 8010/8011 are meant to be strictly cleanups of RFCs 2910/2911 - the universe of IPP (over
>> 30 IETF and PWG specs) is too broad to cover in one spec, without major omissions.
>> 
>> Cheers,
>> - Ira
>> 
>> 
>> Ira McDonald (Musician / Software Architect)
>> Co-Chair - TCG Trusted Mobility Solutions WG
>> Chair - Linux Foundation Open Printing WG
>> Secretary - IEEE-ISTO Printer Working Group
>> Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG
>> IETF Designated Expert - IPP & Printer MIB
>> Blue Roof Music / High North Inc
>> http://sites.google.com/site/blueroofmusic <http://sites.google.com/site/blueroofmusic>
>> http://sites.google.com/site/highnorthinc <http://sites.google.com/site/highnorthinc>
>> mailto: blueroofmusic at gmail.com <mailto:blueroofmusic at gmail.com>
>> Jan-April: 579 Park Place  Saline, MI  48176  734-944-0094
>> May-Dec: PO Box 221  Grand Marais, MI 49839  906-494-2434
>> 
>> 
>> On Mon, Mar 12, 2018 at 1:51 PM, Michael Sweet <msweet at apple.com <mailto:msweet at apple.com>> wrote:
>> Smith,
>> 
>> > On Mar 12, 2018, at 1:16 PM, Kennedy, Smith (Wireless & Standards Architec) <smith.kennedy at hp.com <mailto:smith.kennedy at hp.com>> wrote:
>> >
>> >
>> >
>> >> On Mar 9, 2018, at 2:54 PM, Michael Sweet <msweet at apple.com <mailto:msweet at apple.com>> wrote:
>> >>
>> >> Smith,
>> >>
>> >> PWG 5100.5 is an extension to IPP/1.1 that defines the Document object, the document-attributes-tag (group) value, and the amended semantics for the Send-Document and Send-URI operations.  None of that was part of the core IPP/1.1 (which is what RFC 8011 defines) and we've historically been conservative about requiring support for the Document object extension - right now only IPP/2.2 and IPP INFRA require it and most implementations only support a single document per job anyways...
>> >
>> > I understand that we cannot add additional normative requirements. I was just thinking that, if the "document group" were mentioned even in passing as an optional group in 8011, with a reference to PWG 5100.5, that would help with the "cross referencing" thing.
>> 
>> We also have the Subscription object and its associated attribute group that can be included in Job Creation operations but which we don't say anything about (beyond a reference in the introduction)...
>> 
>> I think the last thing we want to do is One Spec to Rule Them All™.  And honestly I don't think that mentioning other attribute groups without providing any details will be all that useful, especially for something as complicated as the Document object extension.
>> 
>> _________________________________________________________
>> Michael Sweet, Senior Printing System Engineer
>> 
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>> 
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer

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