https://app.knowbase.one/vault/rfc/docid/6889
RFC6332: Multicast Acquisition Report Block Type for RTP Control Protocol (RTCP) Extended Reports (XRs)
Internet Engineering Task Force (IETF) A. Begen Request for Comments: 6332 E. Friedrich Category: Standards Track Cisco ISSN: 2070-1721 July 2011 ...