Diff: rfc8873v3.txt - rfc8873.txt

	rfc8873v3.txt	rfc8873.txt

	Internet Engineering Task Force (IETF) JM. Recio, Ed.	Internet Engineering Task Force (IETF) JM. Recio, Ed.
	Request for Comments: 8873 Unaffiliated	Request for Comments: 8873 Unaffiliated
	Updates: 4975 C. Holmberg	Updates: 4975 C. Holmberg
	Category: Standards Track Ericsson	Category: Standards Track Ericsson

	ISSN: 2070-1721 November 2020	ISSN: 2070-1721 January 2021

	Message Session Relay Protocol (MSRP) over Data Channels	Message Session Relay Protocol (MSRP) over Data Channels

	Abstract	Abstract

	This document specifies how a Web Real-Time Communication (WebRTC)	This document specifies how a Web Real-Time Communication (WebRTC)
	data channel can be used as a transport mechanism for the Message	data channel can be used as a transport mechanism for the Message
	Session Relay Protocol (MSRP) and how the Session Description	Session Relay Protocol (MSRP) and how the Session Description
	Protocol (SDP) offer/answer mechanism can be used to negotiate such a	Protocol (SDP) offer/answer mechanism can be used to negotiate such a
	data channel, referred to as an MSRP data channel. Two network	data channel, referred to as an MSRP data channel. Two network

	skipping to change at line 38 ¶	skipping to change at line 38 ¶
	received public review and has been approved for publication by the	received public review and has been approved for publication by the
	Internet Engineering Steering Group (IESG). Further information on	Internet Engineering Steering Group (IESG). Further information on
	Internet Standards is available in Section 2 of RFC 7841.	Internet Standards is available in Section 2 of RFC 7841.

	Information about the current status of this document, any errata,	Information about the current status of this document, any errata,
	and how to provide feedback on it may be obtained at	and how to provide feedback on it may be obtained at
	https://www.rfc-editor.org/info/rfc8873.	https://www.rfc-editor.org/info/rfc8873.

	Copyright Notice	Copyright Notice


	Copyright (c) 2020 IETF Trust and the persons identified as the	Copyright (c) 2021 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
	(https://trustee.ietf.org/license-info) in effect on the date of	(https://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
	carefully, as they describe your rights and restrictions with respect	carefully, as they describe your rights and restrictions with respect
	to this document. Code Components extracted from this document must	to this document. Code Components extracted from this document must
	include Simplified BSD License text as described in Section 4.e of	include Simplified BSD License text as described in Section 4.e of
	the Trust Legal Provisions and are provided without warranty as	the Trust Legal Provisions and are provided without warranty as

	skipping to change at line 737 ¶	skipping to change at line 737 ¶

	Contact name: IESG	Contact name: IESG
	Contact email: iesg@ietf.org	Contact email: iesg@ietf.org
	Attribute name: sendonly	Attribute name: sendonly
	Usage level: dcsa (msrp)	Usage level: dcsa (msrp)
	Purpose: Negotiate the direction of the media flow on an	Purpose: Negotiate the direction of the media flow on an
	MSRP data channel.	MSRP data channel.
	Reference: RFC 8873	Reference: RFC 8873

	The usage level "dcsa (msrp)" has been added to the registration of	The usage level "dcsa (msrp)" has been added to the registration of

	the SDP 'setup' attribute in the "attribute-name" subregistry	the SDP 'setup' attribute in the "att-field" subregistry as follows:
	(formerly "att-field") as follows:

	Contact name: IESG	Contact name: IESG
	Contact email: iesg@ietf.org	Contact email: iesg@ietf.org
	Attribute name: setup	Attribute name: setup
	Usage level: dcsa (msrp)	Usage level: dcsa (msrp)
	Purpose: Negotiate the active role of an MSRP session over a	Purpose: Negotiate the active role of an MSRP session over a
	data channel as per Section 4.5.	data channel as per Section 4.5.
	Reference: RFC 8873	Reference: RFC 8873

	The usage level "dcsa (msrp)" has been added to the registration of	The usage level "dcsa (msrp)" has been added to the registration of

	skipping to change at line 815 ¶	skipping to change at line 814 ¶
	and R. Ravindranath, "The WebSocket Protocol as a	and R. Ravindranath, "The WebSocket Protocol as a
	Transport for the Message Session Relay Protocol (MSRP)",	Transport for the Message Session Relay Protocol (MSRP)",
	RFC 7977, DOI 10.17487/RFC7977, September 2016,	RFC 7977, DOI 10.17487/RFC7977, September 2016,
	<https://www.rfc-editor.org/info/rfc7977>.	<https://www.rfc-editor.org/info/rfc7977>.

	[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC	[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
	2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,	2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
	May 2017, <https://www.rfc-editor.org/info/rfc8174>.	May 2017, <https://www.rfc-editor.org/info/rfc8174>.

	[RFC8831] Jesup, R., Loreto, S., and M. Tüxen, "WebRTC Data	[RFC8831] Jesup, R., Loreto, S., and M. Tüxen, "WebRTC Data

	Channels", RFC 8831, DOI 10.17487/RFC8831, November 2020,	Channels", RFC 8831, DOI 10.17487/RFC8831, January 2021,
	<https://www.rfc-editor.org/info/rfc8831>.	<https://www.rfc-editor.org/info/rfc8831>.

	[RFC8841] Holmberg, C., Shpount, R., Loreto, S., and G. Camarillo,	[RFC8841] Holmberg, C., Shpount, R., Loreto, S., and G. Camarillo,
	"Session Description Protocol (SDP) Offer/Answer	"Session Description Protocol (SDP) Offer/Answer
	Procedures for Stream Control Transmission Protocol (SCTP)	Procedures for Stream Control Transmission Protocol (SCTP)
	over Datagram Transport Layer Security (DTLS) Transport",	over Datagram Transport Layer Security (DTLS) Transport",

	RFC 8841, DOI 10.17487/RFC8841, November 2020,	RFC 8841, DOI 10.17487/RFC8841, January 2021,
	<https://www.rfc-editor.org/info/rfc8841>.	<https://www.rfc-editor.org/info/rfc8841>.

	[RFC8864] Drage, K., Makaraju, M., Ejzak, R., Marcon, J., and R.	[RFC8864] Drage, K., Makaraju, M., Ejzak, R., Marcon, J., and R.
	Even, Ed., "Negotiation Data Channels Using the Session	Even, Ed., "Negotiation Data Channels Using the Session
	Description Protocol (SDP)", RFC 8864,	Description Protocol (SDP)", RFC 8864,

	DOI 10.17487/RFC8864, November 2020,	DOI 10.17487/RFC8864, January 2021,
	<https://www.rfc-editor.org/info/rfc8864>.	<https://www.rfc-editor.org/info/rfc8864>.

	10.2. Informative References	10.2. Informative References

	[RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston,	[RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston,
	A., Peterson, J., Sparks, R., Handley, M., and E.	A., Peterson, J., Sparks, R., Handley, M., and E.
	Schooler, "SIP: Session Initiation Protocol", RFC 3261,	Schooler, "SIP: Session Initiation Protocol", RFC 3261,
	DOI 10.17487/RFC3261, June 2002,	DOI 10.17487/RFC3261, June 2002,
	<https://www.rfc-editor.org/info/rfc3261>.	<https://www.rfc-editor.org/info/rfc3261>.


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