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RFC 8843, "Negotiating Media Multiplexing Using the Session Description Protocol (SDP)", January 2021

Source of RFC: mmusic (art)

Errata ID: 6437
Status: Reported
Type: Editorial
Publication Format(s) : TEXT

Reported By: EungRok Lee
Date Reported: 2021-02-23

Section 9.2 says:

   *  If the packet has a MID, and the packet's extended sequence number
      is greater than that of the last MID update, as discussed in
      [RFC7941], Section 4.2.2, update the MID associated with the RTP
      stream to match the MID carried in the RTP packet, and then update
      the mapping tables to include an entry that maps the SSRC of that
      RTP stream to the "m=" section for that MID.

It should say:

   *  If the packet has a MID, and the packet's extended sequence number
      is greater than that of the last MID update, as discussed in
      [RFC7941], Section 4.2.6, update the MID associated with the RTP
      stream to match the MID carried in the RTP packet, and then update
      the mapping tables to include an entry that maps the SSRC of that
      RTP stream to the "m=" section for that MID.

Notes:

In RFC7941 section "4.2.2. MTU and Packet Expansion", it doesn't mention about extended sequence number of packets. Section "4.2.6. Update Flaps" describes how to update SDES item using extended sequence number.

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