The IESG has approved the following document: - 'RTCP Extension for Third-party Loss Report' (draft-ietf-avtcore-feedback-supression-rtp-17.txt) as a Proposed Standard This document is the product of the Audio/Video Transport Core Maintenance Working Group. The IESG contact persons are Robert Sparks and Gonzalo Camarillo. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-avtcore-feedback-supression-rtp/ Technical Summary In a large RTP session using the RTCP feedback mechanism defined in RFC 4585, a feedback target may experience transient overload if some event causes a large number of receivers to send feedback at once. This overload is usually avoided by ensuring that feedback reports are forwarded to all receivers, allowing them to avoid sending duplicate feedback reports. However, there are cases where it is not recommended to forward feedback reports, and this may allow feedback implosion. This memo discusses these cases and defines a new RTCP third-party loss report that can be used to inform receivers that the feedback target is aware of some loss event, allowing them to suppress feedback. Associated SDP signalling is also defined. Working Group Summary There is strong consensus among an adequate number of WG participants on this solution. Document Quality There are not yet any reported implementations. The document has had reasonable review. Personnel Magnus Westerlund is the document shepherd. Robert Sparks is the responsible AD