draft-ietf-xrblock-rtcp-xr-pdv-03.txt   draft-ietf-xrblock-rtcp-xr-pdv-04.txt 
Audio/Video Transport Working Group G. Hunt Audio/Video Transport Working Group G. Hunt
Internet-Draft Unaffiliated Internet-Draft Unaffiliated
Intended status: Standards Track A. Clark Intended status: Standards Track A. Clark
Expires: November 29, 2012 Telchemy Expires: February 25, 2013 Telchemy
Q. Wu Q. Wu
Huawei Huawei
May 28, 2012 August 24, 2012
RTCP XR Report Block for Packet Delay Variation Metric Reporting RTCP XR Report Block for Packet Delay Variation Metric Reporting
draft-ietf-xrblock-rtcp-xr-pdv-03.txt draft-ietf-xrblock-rtcp-xr-pdv-04.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 Packet Delay Variation metrics for a range of RTP reporting of Packet Delay Variation metrics for a range of RTP
applications. 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
skipping to change at page 1, line 35 skipping to change at page 1, line 35
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 November 29, 2012. This Internet-Draft will expire on February 25, 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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signal the use of the report block defined in this document. signal the use of the report block defined in this document.
rtcp-xr-attrib = "a=" "rtcp-xr" ":" [xr-format *(SP xr-format)] CRLF rtcp-xr-attrib = "a=" "rtcp-xr" ":" [xr-format *(SP xr-format)] CRLF
(defined in [RFC3611]) (defined in [RFC3611])
xr-format =/ xr-pdv-block xr-format =/ xr-pdv-block
xr-pdv-block = "pkt-dly-var" [ "," pdvtype ] [ "," nspec "," pspec ] xr-pdv-block = "pkt-dly-var" [ "," pdvtype ] [ "," nspec "," pspec ]
pdvtype = "pdv=" 0 ; MAPDV2 ITU-T G.1020 pdvtype = "pdv=" "0" ; MAPDV2 ITU-T G.1020
/ 1 ; 2-point PDV ITU-T Y.1540 / "1" ; 2-point PDV ITU-T Y.1540
/ 1*2DIGIT ;Value 2~15 are valid and
;reserved for future use
nspec = "nthr=" fixpoint ; negative PDV threshold (ms) nspec = "nthr=" fixpoint ; negative PDV threshold (ms)
/ "npc=" fixpoint ; negative PDV percentile / "npc=" fixpoint ; negative PDV percentile
pspec = "pthr=" fixpoint ; positive PDV threshold (ms) pspec = "pthr=" fixpoint ; positive PDV threshold (ms)
/ "ppc=" fixpoint ; positive PDV percentile / "ppc=" fixpoint ; positive PDV percentile
fixpoint = 1*DIGIT "." 1*DIGIT ; fixed point decimal fixpoint = 1*DIGIT "." 1*DIGIT ; fixed point decimal
DIGIT = %x30-39 DIGIT = %x30-39
When SDP is used in offer-answer, a system sending SDP may request a When SDP is used in offer-answer, a system sending SDP may request a
specific type of PDV measurement. In addition, they may state a specific type of PDV measurement. In addition, they may state a
 End of changes. 5 change blocks. 
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