rtcp summary report delivery to sip third parties
DESCRIPTION
RTCP Summary Report Delivery to SIP Third Parties. Alan Johnston Henry Sinnreich Alan Clark Amy Pendleton. Recent Changes. Definition of event package Event parameter used to request mid-session threshold reports. Default is only end of session summary report. Call Flows - PowerPoint PPT PresentationTRANSCRIPT
IETF-59 draft-johnston-sipping-rtcp-summary-02.txt 1
RTCP Summary Report Delivery to SIP Third Parties
Alan JohnstonHenry Sinnreich
Alan ClarkAmy Pendleton
IETF-59 draft-johnston-sipping-rtcp-summary-02.txt 2
Recent Changes
• Definition of event package– Event parameter used to request mid-session
threshold reports. Default is only end of session summary report.
• Call Flows– End of session and mid-session reporting
• Message body definition• Example Message
IETF-59 draft-johnston-sipping-rtcp-summary-02.txt 3
NOTIFY sip:[email protected] SIP/2.0 Via: SIP/2.0/UDP pc22.example.com;branch=z9hG4bK3343d7 Max-Forwards: 70 To: <sip:[email protected]>;tag=43524545 From: Alice <sip:[email protected]>;tag=a3343df32 Call-ID: k3l43id034kevnx7334s CSeq: 4321 NOTIFY Contact: <sip:[email protected]> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY Event: rtcp-xr;threshold Accept: application/sdp, message/sipfrag Subscription-State: active;expires=3600 Content-Type: text/plain Content-Length: ...
AlertType:rf LocalMetrics:VQMetrics: plm=loss:05 disc:02 burst=den:0 len:0 gap=den:2 len:0 delay=rt:200 es:140 signal=sig: rerl: n: qs=r:82 xr:82 ml:3.4 mc:3.3 DialogID:38419823470834;to-tag=8472761;from-tag=9123dh311
IETF-59 draft-johnston-sipping-rtcp-summary-02.txt 4
Open Issues
• Event package name is “rtcp-xr” – Should be more general, perhaps “summary-rpt”
• Mid-session threshold summary reports– How to specify: event parameter or package name?
• Event parameter could also be used to specify body format.
– Negotiate threshold value when subscribing?
• Format of Message body– ABNF instead of XML– Readability?
• Discovery when endpoint registers– Interaction between Registrar and Collector
IETF-59 draft-johnston-sipping-rtcp-summary-02.txt 5
Path Forward
• WG Adopt as WG item?
IETF-59 draft-johnston-sipping-rtcp-summary-02.txt 6
Contacts
Alan Johnston
Henry Sinnreich
Alan Clark
[email protected] Pendleton