[IPP] proposed mods to IPP everywhere spec (per my action item)

[IPP] proposed mods to IPP everywhere spec (per my action item)

Ira McDonald blueroofmusic at gmail.com
Mon Apr 9 18:44:13 UTC 2012


Hi Randy,

Printers already commonly publish themselves in SLP (if servers are
present) and LDAP/Active Directory automatically.

Adding the IPP Everywhere MDNS requirement for DNS-SD publish
of LOC and TXT records is a matter of parity in discovery protocols.

Cheers,
- Ira

Ira McDonald (Musician / Software Architect)
Chair - Linux Foundation Open Printing WG
Secretary - IEEE-ISTO Printer Working Group
Co-Chair - IEEE-ISTO PWG IPP WG
Co-Chair - TCG Trusted Mobility Solutions WG
Chair - TCG Embedded Systems Hardcopy SG
IETF Designated Expert - IPP & Printer MIB
Blue Roof Music/High North Inc
http://sites.google.com/site/blueroofmusic
http://sites.google.com/site/highnorthinc
mailto:blueroofmusic at gmail.com
Winter  579 Park Place  Saline, MI  48176  734-944-0094
Summer  PO Box 221  Grand Marais, MI 49839  906-494-2434



On Mon, Apr 9, 2012 at 2:05 PM, Randy Turner <rturner at amalfisystems.com>wrote:

>
> Hi Mike,
>
> You're right about multicast DNS not requiring site administration, but
> dynamic DNS is only designed to update A/AAAA records in a zone.  I'm not
> aware of anyone using dynamic DNS to update TXT, SRV, or other resource
> records.  I haven't seen this done.
>
> Randy
>
> On Apr 9, 2012, at 10:59 AM, Michael Sweet wrote:
>
> > Randy,
> >
> > Thanks for the text.  Comments below.
> >
> > On Apr 9, 2012, at 10:24 AM, Randy Turner wrote:
> >>
> >> Hi Guys,
> >>
> >> Proposed mods for wd-ippeve10-20120201:
> >>
> >> 4.2.2 Geo-Location (LOC)
> >>
> >> Site administrators MUST (should this be a "SHOULD" ?) publish LOC
> records (RFC 1876) to provide the physical location of a printer.
> >>
> >> 4.2.3 Service Information (TXT)
> >> Site administrators MUST publish ("SHOULD" ?)….
> >>
> >>
> >> This document is placing requirements on devices for future compliance
> with an IPP everywhere standard -- however, DNS requirements are NOT
> requirements placed on a device, but rather administrative requirements for
> the site DNS -- so I'm not sure that 4.2.2 and 4.2.3 belong in this
> document.
> >
> > Multicast DNS (part of Bonjour, and a perennial draft awaiting love from
> the IETF DNS WG) is not managed by site administrators and is part of IPP
> Everywhere.
> >
> > Also, printers *can* register their own DNS records with traditional DNS
> infrastructure using dynamic DNS updates (RFC 2136) and many already have
> support for this...
> >
> > Anyways, I am happy to note that these are requirements for Multicast
> DNS and recommendations for traditional DNS.
> >
> > ________________________________________________________________________
> > Michael Sweet, Senior Printing System Engineer, PWG Chair
> >
> >
>
>
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