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