A publisher sends a SUBSCRIBE_OK control message for successful subscriptions.
SUBSCRIBE_OK Message {
Type (i) = 0x4,
Length (16),
Request ID (i),
Track Alias (i),
Number of Parameters (i),
Parameters (..) ...
}
-
Request ID: The Request ID of the SUBSCRIBE this message is replying to Section 9.9.
-
Track Alias: The identifer used for this track in Subgroups or Datagrams (see Section 10.1). The same Track Alias MUST NOT be used to refer to two different Tracks simultaneously. If a subscriber receives a SUBSCRIBE_OK that uses the same Track Alias as a different track with an
Establishedsubscription, it MUST close the session with errorDUPLICATE_TRACK_ALIAS. -
Parameters: The parameters are defined in Section 9.2.1.