Browse Prior Art Database

Internet Media Type message/sipfrag (RFC3420)

IP.com Disclosure Number: IPCOM000010296D
Original Publication Date: 2002-Nov-01
Included in the Prior Art Database: 2002-Nov-19
Document File: 9 page(s) / 15K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Sparks: AUTHOR

Abstract

This document registers the message/sipfrag Multipurpose Internet Mail Extensions (MIME) media type. This type is similar to message/sip, but allows certain subsets of well formed Session Initiation Protocol (SIP) messages to be represented instead of requiring a complete SIP message. In addition to end-to-end security uses, message/sipfrag is used with the REFER method to convey information about the status of a referenced request.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 19% of the total text.

Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � R. Sparks

Request for Comments: 3420� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � dynamicsoft

Category: Standards Track� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � November 2002

� � � � � � � � � � � � � � � � � Internet Media Type message/sipfrag

Status of this Memo

� � This document specifies an Internet standards track protocol for the

� � Internet community, and requests discussion and suggestions for

� � improvements.� Please refer to the current edition of the "Internet

� � Official Protocol Standards" (STD 1) for the standardization state

� � and status of this protocol.� Distribution of this memo is unlimited.

Copyright Notice

� � Copyright (C) The Internet Society (2002).� All Rights Reserved.

Abstract

� � This document registers the message/sipfrag Multipurpose Internet

� � Mail Extensions (MIME) media type.� This type is similar to

� � message/sip, but allows certain subsets of well formed Session

� � Initiation Protocol (SIP) messages to be represented instead of

� � requiring a complete SIP message.� In addition to end-to-end security

� � uses, message/sipfrag is used with the REFER method to convey

� � information about the status of a referenced request.

Table of Contents

� � 1.� Introduction . . . . . . . . . . . . . . . . . . . . . . . . .� 2

� � 2.� Definition: message/sipfrag� . . . . . . . . . . . . . . . . .� 2

� � 3.� Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .� 3

� � � � � � 3.1 Valid message/sipfrag parts� . . . . . . . . . . . . . . .� 3

� � � � � � 3.2 Invalid message/sipfrag parts� . . . . . . . . . . . . . .� 4

� � 4.� Discussion . . . . . . . . . . . . . . . . . . . . . . . . . .� 5

� � 5.� IANA Considerations� . . . . . . . . . . . . . . . . . . . . .� 6

� � 6.� Security Considerations� . . . . . . . . . . . . . . . . . . .� 6

� � � � � � Normative References . . . . . . . . . . . . . . . . . . . . .� 7

� � � � � � Non-Normative References . . . . . . . . . . . . . . . . . . .� 7

� � � � � � Author's Address . . . . . . . . . . . . . . . . . . . . . . .� 7

� � � � � � Full Copyright Statement . . . . . . . . . . . . . . . . . . .� 8

Sparks� � � � � � � � � � � � � � � � � � � � � Standards Track� � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3420� � � � � � � � � � Internet Media Type message/ipfrag� � � � � November 2002

1. Introduction

� � The message/sip MIME media type defined in [1] carries an entire well

� � formed SIP message.� Section 23.4 of [1] describes the use of

� � message/sip in concert with S/MIME� to enhance end-to-end security.

� � The concepts in that section can be extended to allow SIP entities to

� � make assertions about a subset of a SIP message (for example, as

� � described in [6]).� The message/sipfrag type defined in this document

� � is used to represent this subset.

� � A subset of a SIP message is also used by the R...