§9.7.

SUBSCRIBE_OK

A publisher sends a SUBSCRIBE_OK as the first response message on the bidi stream for successful subscriptions.

SUBSCRIBE_OK Message {
  Type (vi64) = 0x4,
  Length (16),
  Track Alias (vi64),
  Number of Parameters (vi64),
  Parameters (..) ...,
  Track Properties (..),
}
Figure 11: MOQT SUBSCRIBE_OK Message
  • Track Alias: The identifer used for this track in Subgroups or Datagrams (see Section 3.1.2).

  • Parameters: The parameters are defined in Section 9.20.

  • Track Properties : A sequence of Properties. See Section 8.4.

This is one section of the MoQT specification, rendered per-section for quick reference and citation. The authoritative text is draft-ietf-moq-transport-21 at the IETF.