Browse Prior Art Database

The MIME Application/Vnd.pwg-multiplexed Content-Type (RFC3391)

IP.com Disclosure Number: IPCOM000010589D
Original Publication Date: 2002-Dec-01
Included in the Prior Art Database: 2002-Dec-20
Document File: 26 page(s) / 55K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Herriot: AUTHOR

Abstract

The Application/Vnd.pwg-multiplexed content-type, like the Multipart/Related content-type, provides a mechanism for representing objects that consist of multiple components. An Application/Vnd.pwg-multiplexed entity contains a sequence of chunks. Each chunk contains a MIME message or a part of a MIME message. Each MIME message represents a component of the compound object, just as a body part of a Multipart/Related entity represents a component. With a Multipart/Related entity, a body part and its reference in some other body part may be separated by many octets. With an Application/Vnd.pwg-multiplexed entity, a message and its reference in some other message can be made quite close by chunking the message containing the reference. For example, if a long message contains

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Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � R. Herriot

Request for Comments: 3391� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � December 2002

Category: Informational

� � � � � � � � The MIME Application/Vnd.pwg-multiplexed Content-Type

Status of this Memo

� � This memo provides information for the Internet community.� It does

� � not specify an Internet standard of any kind.� Distribution of this

� � memo is unlimited.

Copyright Notice

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

IESG Note

� � The IESG believes use of this media type is only appropriate in

� � situations where the producer is fully aware of the capabilities and

� � limitations of the consumer.� In particular, this mechanism is very

� � dependent on the producer knowing when the consumer will need a

� � particular component of a multipart object.� But consumers

� � potentially work in many different ways and different consumers may

� � need different things at different times.� This mechanism provides no

� � means for a producer to determine the needs of a particular consumer

� � and how they are to be accommodated.

� � Alternative mechanisms, such as a protocol based on BEEP which is

� � capable of bidirectional communication between the producer and

� � consumer, should be considered when the capabilities of the consumer

� � are not known by the producer.

Abstract

� � The Application/Vnd.pwg-multiplexed content-type, like the

� � Multipart/Related content-type, provides a mechanism for representing

� � objects that consist of multiple components.� An

� � Application/Vnd.pwg-multiplexed entity contains a sequence of chunks.

� � Each chunk contains a MIME message or a part of a MIME message.� Each

� � MIME message represents a component of the compound object, just as a

� � body part of a Multipart/Related entity represents a component.� With

� � a Multipart/Related entity, a body part and its reference in some

� � other body part may be separated by many octets.� With an

� � Application/Vnd.pwg-multiplexed entity, a message and its reference

� � in some other message can be made quite close by chunking the message

� � containing the reference.� For example, if a long message contains

Herriot� � � � � � � � � � � � � � � � � � � � � Informational� � � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3391� � � � � � � � � � � � � � � Application/Multiplexed� � � � � � � � � � � December 2002

� � references to images and the producer does not know of the need for

� � each image until it generates the reference, then

� � Application/Vnd.pwg-multiplexed allows the consumer to process the

� � reference to the image and the image before it consumes the entire

� � long message.� This ability is important in printing and scanning

� � applications.� This document defines the Application/Vnd.pwg-

� � multiplexed content-type. It also provides examples of its use.

Table of Contents

� � 1. In...