| description | title | ms.custom | ms.date | ms.service | ms.reviewer | ms.suite | ms.topic |
|---|---|---|---|---|---|---|---|
Learn more about: Brackets |
Brackets1 |
11/30/2017 |
host-integration-server |
article |
This section primarily describes the bracket protocols between the local node and an application for a session supporting half-duplex flip-flop with brackets.
The local node enforces no bracket protocols for full-duplex sessions. Therefore, messages with begin bracket (BB) are not presented as Status-Control(BID) messages, and there are no Status-Session(BETB) messages.
The management of this protocol for a generalized application is complex, and there is a significant amount of code in the local node to simplify the application's perception of the protocol. An application is only aware of two states:
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In-bracket
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Between-bracket
The local node, in addition to the states of in-bracket and between-bracket, maintains transient states with a large state transition matrix, or finite-state machine, governing the half-session's state at a particular time.