IPP Mail Archive: IPP> NOT - Updated 'ipp-get' Delivery Meth

IPP Mail Archive: IPP> NOT - Updated 'ipp-get' Delivery Meth

IPP> NOT - Updated 'ipp-get' Delivery Method for Event Notification po sted

From: Hastings, Tom N (hastings@cp10.es.xerox.com)
Date: Wed Sep 20 2000 - 12:36:56 EDT

  • Next message: Manros, Carl-Uno B: "RE: IPP> NOT - Updated 'ipp-get' Delivery Method for Event Notifi cation po sted"

    This was renamed from 'ipp-getw' at the meeting last week to 'ipp-get' and
    agreed to be the third RECOMMEND delivery method for IPP Notification. This
    method is a synthesis of Harry's server directed polling method and the
    earlier 'ipp-get' polling method. We also agreed at the meeting that for
    the moment we are not pursuing any additional Event Notification Delivery
    Methods. Send comments to the mailing list and/or discuss at today's
    telecon.

    Here is the Abstract:

    The notification extension document [ipp-ntfy] defines operations that a
    client can perform in order to create Subscription Objects in a Printer and
    carry out other operations on them. A Subscription Object represents a
    Subscription abstraction. 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
    Delivery Method (i.e., protocol).
    The notification extension document [ipp-ntfy] specifies that each Delivery
    Method is defined in another document. This document is one such document,
    and it specifies the 'ippget' delivery method.
    The 'ippget' Delivery Method is a 'pull and push' Delivery Method. That is,
    the Printer saves Event Notification for a period of time and expects the
    Notification Recipient to fetch the Event Notifications (the pull part). The
    Printer continues to send Event Notifications to the Notification Recipient
    as Events occur (the push part) if the client has selected the option to
    wait for additional Event Notifications.
    When a Printer supports this Delivery Method, it holds each Event
    Notification for an amount of time, called the Event Notification Lease
    Time.
    When a Notification Recipient wants to receive Event Notifications, it
    performs an IPP operation called 'Get-Notifications', which this document
    defines. This operation causes the Printer to return all Event Notifications
    held for the Notification Recipient. If the Notification Recipient has
    selected the option to wait for additional Event Notifications, the Printer
    continues sending Event Notifications to the Notification Recipient as
    additional Events occur.

    The -rev is diffed with the old file name ipp-poll which had the older
    'ipp-get' method. The files are available at:

    ftp://ftp.pwg.org/pub/pwg/ipp/new_NOT/ipp-notify-get-000918-rev.doc
    ftp://ftp.pwg.org/pub/pwg/ipp/new_NOT/ipp-notify-get-000918-rev.pdf
    ftp://ftp.pwg.org/pub/pwg/ipp/new_NOT/ipp-notify-get-000918.doc
    ftp://ftp.pwg.org/pub/pwg/ipp/new_NOT/ipp-notify-get-000918.pdf
    ftp://ftp.pwg.org/pub/pwg/ipp/new_NOT/ipp-notify-get-000918.txt
    ftp://ftp.pwg.org/pub/pwg/ipp/new_NOT/draft-ietf-ipp-notify-get-00.txt



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