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Status: Verified (2)

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

Source of RFC: mmusic (art)

Errata ID: 6431
Status: Verified
Type: Editorial
Publication Format(s) : TEXT, PDF, HTML

Reported By: EungRok Lee
Date Reported: 2021-02-16
Verifier Name: Barry Leiba
Date Verified: 2021-02-17

Section 15 says:

A media recipient informs the media sender about the identification-
tag associated with an "m=" section through the use of a 'id'
attribute [RFC5888].

It should say:

A media recipient informs the media sender about the identification-
tag associated with an "m=" section through the use of a 'mid'
attribute [RFC5888].

Notes:

As you can see In section 2. Terminology, Identification-tag is a unique token value that is used to identify an "m=" section. The SDP **'mid'** attribute [RFC5888] in an "m=" section carries the unique identification-tag assigned to that "m=" section. I think the 'm' is missing.

Errata ID: 6437
Status: Verified
Type: Editorial
Publication Format(s) : TEXT, PDF, HTML

Reported By: EungRok Lee
Date Reported: 2021-02-23
Verifier Name: Murray Kucherawy
Date Verified: 2021-09-01

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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