Publication of Partial Presence Information
draft-ietf-simple-partial-publish-07

PROTO Write-up

1.a) The chairs have reviewed this version of the ID and
    ask that the IESG consider it for publication.

1.b) This document has been sufficiently reviewed by the
    working group.

1.c) The chairs do not believe further cross-area review
    is needed. The author of this I-D is the author of the
    SIP PUBLISH extension.
   
1.d) This document completes a set of required documents needed by
    3GPP in order to have a fully functioning SIMPLE presence that
    can cope with the low bandwidth and high latency of the 3G
    wireless environment. There are no concerns from the WG chairs.

1.e) This document reflects a strong consensus position from
    the working group.

1.f) There have been no indications of intent to appeal.

1.g) This document adheres to ID-nits.

1.h) The document appropriately splits references into
    Informative/Normative.

1.i) Announcement Write-up

Technical Summary

The Presence Information Document Format (PIDF) was defined in the IMPP
WG that specifies the baseline XML based format for describing presence
information.  One of the characteristic of the PIDF is that the document
always needs to carry all presence information available for the presentity,
by the publisher.

In some environments like 3G networks where low bandwidth and high latency
links can exist it is often beneficial to limit the amount of transported
information over the network.

The Session Initiation Protocol (SIP) Extension for Event State
Publication describes a mechanism with which a presence user agent is
able to publish presence information to a presence agent.  Using PIDF,
each presence publication contains full state, regardless of how much
of that information has actually changed since the previous update.
This memo introduces a mechanism that allows for publication of
partial presence information.

Working Group Summary

This document reflects WG consensus. It defines the behaviour of the
presentity and presence agent when it comes to generating or receiving
SIP PUBLISH requests with partial PIDF as the payload.

This I-D has a strong dependency on draft-ietf-simple-partial-pidf-format-06

Protocol Quality

  Hisham Khartabil was the PROTO shepherd for this document.