draft-ietf-sipcore-content-id-08.txt   draft-ietf-sipcore-content-id-09.txt 
SIPCORE Working Group C. Holmberg SIPCORE Working Group C. Holmberg
Internet-Draft I. Sedlacek Internet-Draft I. Sedlacek
Updates: 5621, 5368, 6442 (if approved) Ericsson Updates: 5621, 5368, 6442 (if approved) Ericsson
Intended status: Standards Track August 31, 2017 Intended status: Standards Track September 1, 2017
Expires: March 4, 2018 Expires: March 5, 2018
Content-ID header field in Session Initiation Protocol (SIP) Content-ID header field in Session Initiation Protocol (SIP)
draft-ietf-sipcore-content-id-08 draft-ietf-sipcore-content-id-09
Abstract Abstract
This document specifies the Content-ID header field for usage in the This document specifies the Content-ID header field for usage in the
Session Initiation Protocol (SIP). The document also updates RFC Session Initiation Protocol (SIP). The document also updates RFC
5621, which only allows a Content-ID URL to reference a body part 5621, which only allows a Content-ID URL to reference a body part
that is part of a multipart message-body. This update enables a that is part of a multipart message-body. This update enables a
Content-ID URL to reference a complete message-body and metadata Content-ID URL to reference a complete message-body and metadata
provided by some additional SIP header fields. provided by some additional SIP header fields.
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 4, 2018. This Internet-Draft will expire on March 5, 2018.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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and and
o Updates [RFC5621], to enable a Content-ID URL to reference a o Updates [RFC5621], to enable a Content-ID URL to reference a
complete message-body and metadata provided by some additional SIP complete message-body and metadata provided by some additional SIP
header fields. header fields.
o Updates [RFC5368] and [RFC6442] by adding explicit text saying o Updates [RFC5368] and [RFC6442] by adding explicit text saying
that a SIP Content-ID header field can be used. that a SIP Content-ID header field can be used.
1.6. Backward compatibility 1.6. Backward compatibility
If an existing specification explicitly defines the usage of a If an existing specification only defines the usage of a multipart
multipart message-body for carrying a single body part, that message-body for carrying a single body part to be referenced by a
specification MUST be updated in order to allow usage of a non- Content-ID URL, implementations MUST NOT carry the MIME entity in a
multipart message-body for carrying the MIME entity, and for non-multipart message-body unless the specification is updated to
referencing the whole message-body using a Content-ID URL. explicitly allow it.
2. Conventions 2. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119]. document are to be interpreted as described in [RFC2119].
3. Content-ID header field 3. Content-ID header field
3.1. Introduction 3.1. Introduction
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Header Name: Content-ID Header Name: Content-ID
compact: compact:
Reference: RFCXXXX Reference: RFCXXXX
9. Change log 9. Change log
[RFC EDITOR NOTE: Please remove this section when publishing] [RFC EDITOR NOTE: Please remove this section when publishing]
Changes from draft-ietf-sipcore-content-id-08
o Editorial change based on comment from Ben Campbell.
Changes from draft-ietf-sipcore-content-id-07 Changes from draft-ietf-sipcore-content-id-07
o Updates to affected RFCs. o Updates to affected RFCs.
o Editorial changes and clarifications based on IESG review. o Editorial changes and clarifications based on IESG review.
Changes from draft-ietf-sipcore-content-id-06 Changes from draft-ietf-sipcore-content-id-06
o Editorial changes and clarifications based on Gen-ART review from o Editorial changes and clarifications based on Gen-ART review from
Elwyn Davies. Elwyn Davies.
 End of changes. 5 change blocks. 
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