draft-ietf-xrblock-rtcp-xr-delay-07.txt   draft-ietf-xrblock-rtcp-xr-delay-08.txt 
Audio/Video Transport Working Group G. Hunt Audio/Video Transport Working Group A. Clark
Internet-Draft Unaffiliated Internet-Draft Telchemy
Intended status: Standards Track A. Clark Intended status: Standards Track K. Gross
Expires: March 1, 2013 Telchemy Expires: March 3, 2013 AVA Networks
K. Gross
AVA Networks
Q. Wu Q. Wu
Huawei Huawei
August 28, 2012 August 30, 2012
RTCP XR Report Block for Delay metric Reporting RTCP XR Report Block for Delay metric Reporting
draft-ietf-xrblock-rtcp-xr-delay-07.txt draft-ietf-xrblock-rtcp-xr-delay-08.txt
Abstract Abstract
This document defines an RTCP XR Report Block that allows the This document defines an RTCP XR Report Block that allows the
reporting of Delay metrics for use in a range of RTP applications. reporting of Delay metrics for use in a range of RTP applications.
Status of this Memo Status of this Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
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This Internet-Draft will expire on March 1, 2013. This Internet-Draft will expire on March 3, 2013.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2012 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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2.1. Standards Language . . . . . . . . . . . . . . . . . . . . 4 2.1. Standards Language . . . . . . . . . . . . . . . . . . . . 4
3. Delay Block . . . . . . . . . . . . . . . . . . . . . . . . . 5 3. Delay Block . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Report Block Structure . . . . . . . . . . . . . . . . . . 5 3.1. Report Block Structure . . . . . . . . . . . . . . . . . . 5
3.2. Definition of Fields in Delay Metrics Report Block . . . . 5 3.2. Definition of Fields in Delay Metrics Report Block . . . . 5
4. SDP Signaling . . . . . . . . . . . . . . . . . . . . . . . . 8 4. SDP Signaling . . . . . . . . . . . . . . . . . . . . . . . . 8
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
5.1. New RTCP XR Block Type value . . . . . . . . . . . . . . . 9 5.1. New RTCP XR Block Type value . . . . . . . . . . . . . . . 9
5.2. New RTCP XR SDP Parameter . . . . . . . . . . . . . . . . 9 5.2. New RTCP XR SDP Parameter . . . . . . . . . . . . . . . . 9
5.3. Contact information for registrations . . . . . . . . . . 9 5.3. Contact information for registrations . . . . . . . . . . 9
6. Security Considerations . . . . . . . . . . . . . . . . . . . 10 6. Security Considerations . . . . . . . . . . . . . . . . . . . 10
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 11 7. Contributors . . . . . . . . . . . . . . . . . . . . . . . . . 11
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 12 8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 12
8.1. Normative References . . . . . . . . . . . . . . . . . . . 12 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13
8.2. Informative References . . . . . . . . . . . . . . . . . . 12 9.1. Normative References . . . . . . . . . . . . . . . . . . . 13
Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 13 9.2. Informative References . . . . . . . . . . . . . . . . . . 13
A.1. draft-ietf-xrblock-rtcp-xr-delay-07 . . . . . . . . . . . 13 Appendix A. Change Log . . . . . . . . . . . . . . . . . . . . . 14
A.2. draft-ietf-xrblock-rtcp-xr-delay-06 . . . . . . . . . . . 13 A.1. draft-ietf-xrblock-rtcp-xr-delay-08 . . . . . . . . . . . 14
A.3. draft-ietf-xrblock-rtcp-xr-delay-05 . . . . . . . . . . . 13 A.2. draft-ietf-xrblock-rtcp-xr-delay-07 . . . . . . . . . . . 14
A.4. draft-ietf-xrblock-rtcp-xr-delay-04 . . . . . . . . . . . 13 A.3. draft-ietf-xrblock-rtcp-xr-delay-06 . . . . . . . . . . . 14
A.5. draft-ietf-xrblock-rtcp-xr-delay-03 . . . . . . . . . . . 13 A.4. draft-ietf-xrblock-rtcp-xr-delay-05 . . . . . . . . . . . 14
A.6. draft-ietf-xrblock-rtcp-xr-delay-02 . . . . . . . . . . . 14 A.5. draft-ietf-xrblock-rtcp-xr-delay-04 . . . . . . . . . . . 14
A.7. draft-ietf-xrblock-rtcp-xr-delay-01 . . . . . . . . . . . 14 A.6. draft-ietf-xrblock-rtcp-xr-delay-03 . . . . . . . . . . . 14
A.8. draft-ietf-xrblock-rtcp-xr-delay-00 . . . . . . . . . . . 14 A.7. draft-ietf-xrblock-rtcp-xr-delay-02 . . . . . . . . . . . 15
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 15 A.8. draft-ietf-xrblock-rtcp-xr-delay-01 . . . . . . . . . . . 15
A.9. draft-ietf-xrblock-rtcp-xr-delay-00 . . . . . . . . . . . 15
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 16
1. Introduction 1. Introduction
1.1. Packet Delay Metrics Block 1.1. Packet Delay Metrics Block
This draft defines a new block type to augment those defined in This draft defines a new block type to augment those defined in
[RFC3611] for use in a range of RTP applications. The new block type [RFC3611] for use in a range of RTP applications. The new block type
supports the reporting of the mean, minimum and maximum values of the supports the reporting of the mean, minimum and maximum values of the
network round-trip delay between RTP interfaces in peer RTP end network round-trip delay between RTP interfaces in peer RTP end
systems as measured, for example, using the RTCP method described in systems as measured, for example, using the RTCP method described in
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[Note to RFC Editor: please replace NDEL with the IANA provided RTCP [Note to RFC Editor: please replace NDEL with the IANA provided RTCP
XR block type for this block.] XR block type for this block.]
5.2. New RTCP XR SDP Parameter 5.2. New RTCP XR SDP Parameter
This document also registers a new parameter "delay" in the "RTCP XR This document also registers a new parameter "delay" in the "RTCP XR
SDP Parameters Registry". SDP Parameters Registry".
5.3. Contact information for registrations 5.3. Contact information for registrations
The contact information for the registrations is: The contact information for the registrations is:
Geoff Hunt (r.geoff.hunt@gmail.com) Qin Wu (sunseawq@huawei.com)
Orion 2 PP3, Adastral Park, Martlesham Heath, Ipswich IP5 3RE, United 101 Software Avenue, Yuhua District
Kingdom Nanjing, Jiangsu 210012
China
6. Security Considerations 6. Security Considerations
It is believed that this proposed RTCP XR report block introduces no It is believed that this proposed RTCP XR report block introduces no
new security considerations beyond those described in [RFC3611]. new security considerations beyond those described in [RFC3611].
This block does not provide per-packet statistics so the risk to This block does not provide per-packet statistics so the risk to
confidentiality documented in Section 7, paragraph 3 of [RFC3611] confidentiality documented in Section 7, paragraph 3 of [RFC3611]
does not apply. does not apply.
7. Acknowledgments 7. Contributors
Geoff Hunt wrote the initial version of this document.
8. Acknowledgments
The authors gratefully acknowledge the comments and contributions The authors gratefully acknowledge the comments and contributions
made by Bruce Adams, Philip Arden, Amit Arora, Bob Biskner, Kevin made by Bruce Adams, Philip Arden, Amit Arora, Bob Biskner, Kevin
Connor, Claus Dahm, Randy Ethier, Roni Even, Jim Frauenthal, Albert Connor, Claus Dahm, Randy Ethier, Roni Even, Jim Frauenthal, Albert
Higashi, Tom Hock, Shane Holthaus, Paul Jones, Rajesh Kumar, Keith Higashi, Tom Hock, Shane Holthaus, Paul Jones, Rajesh Kumar, Keith
Lantz, Mohamed Mostafa, Amy Pendleton, Colin Perkins, Mike Ramalho, Lantz, Mohamed Mostafa, Amy Pendleton, Colin Perkins, Mike Ramalho,
Ravi Raviraj, Albrecht Schwarz, Tom Taylor, and Hideaki Yamada,Jing Ravi Raviraj, Albrecht Schwarz, Tom Taylor, and Hideaki Yamada,Jing
Zhao,Kevin Gross, Colin Perkins, Charles Eckel, Glen Zorn,Shida Zhao,Kevin Gross, Colin Perkins, Charles Eckel, Glen Zorn,Shida
Schubert. Schubert.
8. References 9. References
8.1. Normative References 9.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", March 1997. Requirement Levels", March 1997.
[RFC3550] Schulzrinne, H., "RTP: A Transport Protocol for Real-Time [RFC3550] Schulzrinne, H., "RTP: A Transport Protocol for Real-Time
Applications", RFC 3550, July 2003. Applications", RFC 3550, July 2003.
[RFC3611] Friedman, T., Caceres, R., and A. Clark, "RTP Control [RFC3611] Friedman, T., Caceres, R., and A. Clark, "RTP Control
Protocol Extended Reports (RTCP XR)", November 2003. Protocol Extended Reports (RTCP XR)", November 2003.
[RFC4566] Handley, M., Jacobson, V., and C. Perkins, "SDP: Session [RFC4566] Handley, M., Jacobson, V., and C. Perkins, "SDP: Session
Description Protocol", July 2006. Description Protocol", July 2006.
[RFC5905] Mills, D., Martin, J., Burbank, J., and W. Kasch, "Network [RFC5905] Mills, D., Martin, J., Burbank, J., and W. Kasch, "Network
Time Protocol Version 4: Protocol and Algorithms Time Protocol Version 4: Protocol and Algorithms
Specification", RFC 5905, June 2010. Specification", RFC 5905, June 2010.
8.2. Informative References 9.2. Informative References
[MEASI] Hunt, G., "Measurement Identity and information Reporting [MEASI] Hunt, G., "Measurement Identity and information Reporting
using SDES item and XR Block", using SDES item and XR Block",
ID draft-ietf-xrblock-rtcp-xr-meas-identity-09, July 2012. ID draft-ietf-xrblock-rtcp-xr-meas-identity-09, July 2012.
[MONARCH] Hunt, G., "Monitoring Architectures for RTP", [MONARCH] Hunt, G., "Monitoring Architectures for RTP",
ID draft-ietf-avtcore-monarch-18, August 2012. ID draft-ietf-avtcore-monarch-18, August 2012.
[RFC6390] Clark, A. and B. Claise, "Framework for Performance Metric [RFC6390] Clark, A. and B. Claise, "Framework for Performance Metric
Development", RFC 6390, October 2011. Development", RFC 6390, October 2011.
Appendix A. Change Log Appendix A. Change Log
Note to the RFC-Editor: please remove this section prior to Note to the RFC-Editor: please remove this section prior to
publication as an RFC. publication as an RFC.
A.1. draft-ietf-xrblock-rtcp-xr-delay-07 A.1. draft-ietf-xrblock-rtcp-xr-delay-08
The following are the major changes to previous version :
o Move Geoff Hunt from author list to Contributors section based on
his suggestion.
A.2. draft-ietf-xrblock-rtcp-xr-delay-07
The following are the major changes to previous version : The following are the major changes to previous version :
o Editorial changes. o Editorial changes.
o Reference updates. o Reference updates.
A.2. draft-ietf-xrblock-rtcp-xr-delay-06 A.3. draft-ietf-xrblock-rtcp-xr-delay-06
The following are the major changes to previous version : The following are the major changes to previous version :
o Editorial changes. o Editorial changes.
A.3. draft-ietf-xrblock-rtcp-xr-delay-05 A.4. draft-ietf-xrblock-rtcp-xr-delay-05
The following are the major changes to previous version : The following are the major changes to previous version :
o One typo fixed. o One typo fixed.
A.4. draft-ietf-xrblock-rtcp-xr-delay-04 A.5. draft-ietf-xrblock-rtcp-xr-delay-04
The following are the major changes to previous version : The following are the major changes to previous version :
o Revise the definition of sampled metric to get alignment with o Revise the definition of sampled metric to get alignment with
MONARCH. MONARCH.
o Clarify sending the metric block in the same RTCP compound packet o Clarify sending the metric block in the same RTCP compound packet
as the measurement information block. as the measurement information block.
A.5. draft-ietf-xrblock-rtcp-xr-delay-03 A.6. draft-ietf-xrblock-rtcp-xr-delay-03
The following are the major changes to previous version : The following are the major changes to previous version :
o Allocate 64 bit for end system delay and represent it using 64 bit o Allocate 64 bit for end system delay and represent it using 64 bit
NTP-Timestamp. NTP-Timestamp.
o Other editorial changes. o Other editorial changes.
A.6. draft-ietf-xrblock-rtcp-xr-delay-02 A.7. draft-ietf-xrblock-rtcp-xr-delay-02
The following are the major changes to previous version : The following are the major changes to previous version :
o Allocate 32bits for each metrics and change unit for each metric o Allocate 32bits for each metrics and change unit for each metric
from ms to 1/65536 seconds. from ms to 1/65536 seconds.
A.7. draft-ietf-xrblock-rtcp-xr-delay-01 A.8. draft-ietf-xrblock-rtcp-xr-delay-01
The following are the major changes to previous version : The following are the major changes to previous version :
o Updated references. o Updated references.
o Allocate one more bit for Interval metric flag to indicate sampled o Allocate one more bit for Interval metric flag to indicate sampled
metric can be used. metric can be used.
o add a few clarification text for failure mode. o add a few clarification text for failure mode.
A.8. draft-ietf-xrblock-rtcp-xr-delay-00 A.9. draft-ietf-xrblock-rtcp-xr-delay-00
The following are the major changes to previous version : The following are the major changes to previous version :
o Changed BNF for SDP following Christian Groves' and Tom Taylor's o Changed BNF for SDP following Christian Groves' and Tom Taylor's
comments (4th and 5th May 2009). comments (4th and 5th May 2009).
o Updated references. o Updated references.
Authors' Addresses Authors' Addresses
Geoff Hunt
Unaffiliated
Email: r.geoff.hunt@gmail.com
Alan Clark Alan Clark
Telchemy Incorporated Telchemy Incorporated
2905 Premiere Parkway, Suite 280 2905 Premiere Parkway, Suite 280
Duluth, GA 30097 Duluth, GA 30097
USA USA
Email: alan.d.clark@telchemy.com Email: alan.d.clark@telchemy.com
Kevin Gross Kevin Gross
AVA Networks AVA Networks
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