§11.

Data Streams and Datagrams

Sections

A publisher sends Objects matching a subscription on Data Streams or Datagrams and sends Objects matching a FETCH request on one Data Stream.

Unidirectional stream types are defined in Section 3.4. Data streams use SUBGROUP_HEADER or FETCH_HEADER types.

All MOQT datagrams start with a variable-length integer indicating the type of the datagram. See Section 11.3.1.

An endpoint that receives an unknown datagram type MUST close the session.

Every Object has a 'Object Forwarding Preference' and the Original Publisher MAY use both Subgroups and Datagrams within a Group or Track.

This is one section of the MoQT specification, rendered per-section for quick reference and citation. The authoritative text is draft-ietf-moq-transport-19 at the IETF.