I reviewed the document "Multiplexing Scheme Updates for Secure Real-time Transport Protocol SRTP) Extension for Datagram Transport Layer Security (DTLS)" (draft-ietf-avtcore-rfc5764-mux-fixes-10.txt) as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG.  These comments were written primarily for the benefit of the operational area directors.  Document editors and WG chairs should treat these comments just like any other last call comments.   Intended status: Standards Track                           Updates: 5764 (if approved) Current IESG state: In Last Call (ends 2016-08-06) IANA - Review Needed     Summary: This document defines how Datagram Transport Layer Security (DTLS), Real-time Transport Protocol (RTP), RTP Control Protocol (RTCP), Session Traversal Utilities for NAT (STUN), Traversal Using Relays around NAT (TURN), and ZRTP packets are multiplexed on a single receiving socket.   Following nit needs to be addressed:     ** Obsolete normative reference: RFC 4347 (Obsoleted by RFC 6347)   This document updates existing IANA registries and adds a new range for TURN channels in the demuxing algorithm. As such it requires an IANA review.   The document is well written. I don't see any issues related to operations and management.   Mehmet