4.3.1 Start Message

Topic Version1Published10/16/2017
For StandardETPW20 v1

To begin a channel streaming session, the consumer sends a Start message to the producer as shown in the example message below, which also uses these example parameters:

Property Name

Example

maxDataItems

50

maxMessageRate [ms]

2000
Figure 4.3.1-1 NOTE: After receiving a Start message, a simple-streamer producer immediately sends channel metadata and begins streaming channel data messages to the consumer.

A non-simple producer must wait until it receives ChannelDescribe message(s) to respond with channel metadata and then needs a ChannelStreamingStart message before it can send channel data, as explained in the next sections.