IPP> ADM - IPP Working Group Last Call for "(IPP): Event Notifications and Subscriptions" and "(IPP): The 'ippget'Delivery Method for Event Notifications " by July 31, 2002

[Carl]

All,

This is a working group Last Call for the "Internet Printing Protocol (IPP):
Event Notifications and Subscriptions" and the "Internet Printing Protocol
(IPP): The 'ippget'Delivery Method for Event Notifications".
Versions of these documents have been forwarded to the Internet
Draft directory as <draft-ietf-ipp-not-spec-09.txt> and
<draft-ietf-ipp-notify-get-07.txt>.

PDF and Word versions of the drafts are also posted at the ietf-ipp web
site:

          ftp://ftp.pwg.org/pub/pwg/ipp/

The Last Call notice follows:

This is a formal request for final comments within the IETF IPP
Working Group for two documents. "Internet Printing Protocol (IPP):
Event Notifications and Subscriptions" and the "Internet Printing Protocol
(IPP): The 'ippget' Delivery Method for Event Notifications", which have
earlier been forwarded to the IESG for consideration as Standards Track
RFCs. These are IPP Working Group products, which have been thoroughly
discussed since mid 1998. The latest revisions are the result of feedback
from our Area Director Ned Freed and Working Group discussions earlier
this year. The most significant change is that the 'ippget' delivery method
is now mandated for all implementations of the IPP Event Notifications,
while additional delivery methods can be used as an option.

The purpose of a working group Last Call is in the style of "speak now or
forever hold your peace" in case there are fundamental objections, which
have not gotten previous or adequate discussion, or minor errors which need
correction.

Last Calls are for a minimum of 2 weeks. The period for the Working Group
comments will close on July 31, 2002(US Pacific time reference).

The relevant documents are:

	Title		: Internet Printing Protocol (IPP): IPP Event
                          Notifications and Subscriptions
	Author(s)	: R. Herriot, T. Hastings
	Filename	: draft-ietf-ipp-not-spec-09.txt
	Pages		: 101
	Date		: 03-Jul-02

This document describes an OPTIONAL extension to the Internet
Printing Protocol/1.1: Model and Semantics (RFC 2911, RFC 2910).
This extension allows a client to subscribe to printing related
Events.  Subscriptions are modeled as Subscription Objects.  The
Subscription Object specifies that when one of the specified Events
occurs, the Printer sends an asynchronous Event Notification to the
specified Notification Recipient via the specified Push or Pull
Delivery Method (i.e., protocol).
A client associates Subscription Objects with a particular Job by
performing the Create-Job-Subscriptions operation or by submitting a
Job with subscription information.  A client associates Subscription
Objects with the Printer by performing a Create-Printer-Subscriptions
operation.  Four other operations are defined for Subscription
Objects: Get-Subscriptions-Attributes, Get-Subscriptions, Renew-
Subscription, and Cancel-Subscription.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-ipp-not-spec-09.txt

-----

	Title		: Internet Printing Protocol (IPP): The 'ippget'
                          Delivery Method for Event Notifications
	Author(s)	: R. Herriot, T. Hastings
	Filename	: draft-ietf-ipp-notify-get-07.txt
	Pages		: 37
	Date		: 03-Jul-02

This document describes an extension to the Internet Printing
Protocol/1.1: Model and Semantics (RFC 2911, RFC 2910).  This
document specifies the 'ippget' Delivery Method for use with the
'Internet Printing Protocol (IPP): Event Notifications and
Subscriptions' specification.  When IPP Notification [ipp-ntfy] is
supported, the Delivery Method defined in this document is the
REQUIRED Delivery Method for clients and Printers to support.  They
MAY support additional Delivery Methods.
The 'ippget' Delivery Method is a Pull Delivery Method.  When an
Event occurs, the Printer saves the Event Notification for a period
of time called the Event Life.  The Notification Recipient fetches
(pulls) Event Notifications using the Get-Notifications operation.
If the Notification Recipient has selected the Event Wait Mode option
to wait for additional Event Notifications, the Printer continues to
return Event Notifications to the Notification Recipient as Get-
Notification responses as Events occur using the connection
originated by the Notification Recipient.
Either the Notification Recipient or the Printer can terminate Event
Wait Mode without closing the connection.

A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-ipp-notify-get-07.txt

Sincerely,

Carl-Uno Manros
Chair of the IETF IPP WG

10701 S Eastern Ave #1117
Henderson, NV 89052, USA
Tel +1-702-617-9414
Fax +1-702-617-9417
Mob +1-310-251-7103
Email carl at manros.com