Metric Blocks for use with RTCP's Extended Report Framework (xrblock)
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 Charter

 Current Status: Active

 Chairs:
     Dan Romascanu <dromasca@gmail.com>
     Shida Schubert <shida.at.ietf@gmail.com>

 Applications and Real-Time Area Directors:
     Barry Leiba <barryleiba@computer.org>
     Alexey Melnikov <aamelnikov@fastmail.fm>
     Adam Roach <adam@nostrum.com>

 Applications and Real-Time Area Advisor:
     Barry Leiba <barryleiba@computer.org>

 Mailing Lists:
     General Discussion: xrblock@ietf.org
     To Subscribe:       https://www.ietf.org/mailman/listinfo/xrblock
     Archive:            https://mailarchive.ietf.org/arch/browse/xrblock/

Description of Working Group:


    RFC3611, "RTP Control Protocol Extended Reports (RTCP XR)" established
    a framework to allow new information to be conveyed in RTCP,
    supplementing the original report blocks defined in RFC 3550, "RTP: A
    Transport Protocol for Real-Time Applications".

    The XRBLOCK working group is chartered to work within this framework,
    evaluating proposals for report block definitions containing new
    metrics. The group will follow the guidelines established in RFC5968,
    "Guidelines for Extending the RTP Control Protocol (RTCP)" and RTP
    Monitoring Architecture being developed in the AVTCORE working group.
    The group will consider the guidelines for performance metric
    development currently being discussed in the PMOL working group.




Goals and Milestones:
  Done     - Submit RTCP XR Report Block for Measurement Identity Reporting to IESG
  Done     - Submit RTCP XR Report Block for Delay metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for Packet Delay Variation Metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for Discard metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for Run Length Encodings of Discarded Packets to IESG
  Done     - Submit RTCP XR Report Block for Burst/Gap Discard metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for Burst/Gap Loss metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for QoE Metrics Reporting to IESG
  Done     - Submit RTCP XR Report Block for Jitter Buffer Metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for Summary Statistics Metrics Reporting
  Done     - Submit RTCP XR Report Block for Transport Stream (TS) Decodability Metric
  Done     - Submit RTCP XR Report Block for Loss Concealment metric Reporting to IESG
  Done     - Submit RTCP XR Report Block for Synchronization Delay and Offset Metrics Reporting
  Done     - Submit RTCP XR Report Block for Bytes Discarded Metrics Reporting to IESG
  Done     - Submit RTCP XR Report Block for MPEG2 Transport Stream (TS) Program Specific Information (PSI) Decodability Statistics Metrics Reporting to IESG
  Jan 2015 - Submit RTCP XR Report Block for Post-Repair Loss Count Metrics Reporting to IESG
  Mar 2015 - Submit Considerations for Selecting RTCP Extended Report (XR) Metrics for the RTCWEB Statistics API to IESG