IETF-61 draft-johnston-sipping-rtcp-summary-04.txt 1

A Performance Event Package for SIP

Alan JohnstonHenry Sinnreich

Alan ClarkAmy Pendleton

IETF-61 draft-johnston-sipping-rtcp-summary-04.txt 2

Recent Changes• More general event name: perfrpt

– Parameters in event reflect voice quality metrics– Event can be extended for general performance reporting– Mime type also changed

• Syntax additions and clean up– More identification parameters, such as session 5-tuple, call identifier– Timestamps for start and end – allow for interval, mid-session, and end of session

reporting– More threshold types; extensions are also explicitly permitted– Enhanced readability with more descriptive parameters

• More call flows– SUBSCRIBE/NOTIFY and PUBLISH flows for both threshold and end of session

reports – Message formats for each flow

• Finalized details on use of PUBLISH and event state– Neither party maintains a soft or hard state– Intention, like other PUBLISH services, is to reduce messaging

IETF-61 draft-johnston-sipping-rtcp-summary-04.txt 3

Open Issues

Comments?

IETF-61 draft-johnston-sipping-rtcp-summary-04.txt 4

Path Forward

• Draft very close to technical completeness.

• After current round of comments, probably ready for WGLC.

• But…can we get this adopted as WG item?

IETF-61 draft-johnston-sipping-rtcp-summary-04.txt 5

Contacts

Alan Johnston

alan.johnston@mci.com

Henry Sinnreich

Henry.sinnreich@mci.com

Alan Clark

alan@telchemy.comAmy Pendleton

aspen@nortelnetworks.com