PWG 5100.14 doesn't say you MUST support Upgrade, BUT it does say
the rest about advertise and support ipps URIs.
And PWG 5100.14 also says you MUST do IPP/2.0 (PWG 5100.12), which
says on page 33:
7.4 IPP over TLS Conformance Requirements
To claim conformance to this specification, an IPP Printer or IPP Client
that supports TLS MUST:
1. Support the HTTP Upgrade protocol as defined in [RFC2817]; and
2. Support the required minimum cipher suite for interoperability defined
in the claimed TLS specification.
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
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 Thu, Sep 15, 2016 at 4:29 PM, <smith.kennedy at hp.com> wrote:
> [Issue Unconfirmed]
>> In PWG 5100.20, page 16, it says this:
>> Printers that report support for TLS MUST also support HTTP Upgrade to TLS,
> correctly advertise themselves using the "_ipps._tcp,_print" sub-type, and
> support using an "ipps" URI.
>> This is not a conformance requirement from 5100.14, however. So B-5.1
> really ought to be removed or at least be made into a SHOULD rather than a
>> Link: http://www.pwg.org/issues/49>> _______________________________________________
> ipp mailing list
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