https://datatracker.ietf.org/doc/html/draft-ietf-avtcore-rfc5764-mux-fixes-02
draft-ietf-avtcore-rfc5764-mux-fixes-02
Multiplexing Scheme Updates for Secure Real-time Transport Protocol (SRTP) Extension for Datagram Transport Layer Security (DTLS) (Internet-Draft, 2015)
draftietfmuxfixes