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8.4.2. Credit Allocation Modes
There are two modes of credit allocation defined by the AMQP specification:
- In credit mode, credit must be explicitly re-issued by the subscriber before the broker can recommence sending messages
- In window mode, the credit is automatically reissued for received messages. In this mode, the client indicates that a message has been received by informing the broker of the completion of the transfer. Though completion is essentially a form of acknowledgment, it should not be confused with acceptance which is an confirmation of ownership transfer.
In both modes, unlimited credit can be allocated for the message count and the total content size.
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